TW202430439A - Roll bale body - Google Patents

Abstract

The present invention provides a roll packaging body capable of suppressing the generation of wrinkles in an intermediate film. The roll packaging body of the present invention comprises: a pallet base having a first surface, a winding core, and a roll body of an intermediate film for laminated glass wound into a roll shape on the outer peripheral surface of the winding core, the pallet base having a pallet base body and a retaining member for retaining the winding core, the retaining member of the pallet base having a portion protruding upward on the first surface side of the pallet base, the winding core being retained by the retaining member of the pallet base, and the roll packaging body having a specific structure (1) or a specific structure (2).

Description

Roll bale body

The present invention relates to a roll package having a support plate base, a roll core, and a roll body of an intermediate film for laminated glass.

A laminated glass having an interlayer film for laminated glass (hereinafter sometimes referred to as an interlayer) sandwiched between a pair of glass plates is known. The laminated glass is widely used in automobiles, railway vehicles, aircraft, ships, buildings, and the like.

After manufacturing, the intermediate film is wound around a winding core to form a roll (for example, Patent Document 1). In addition, the roll is packaged with specific components to form a roll package and is stored until it is used. [Prior Art Document] [Patent Document]

[Patent Document 1] Japanese Patent Publication No. 2022-015080

[The problem the invention is trying to solve]

Consider that a roll of an intermediate film wound around a winding core is vertically placed on a pallet base to obtain a roll package. The steps for vertically placing the roll of the intermediate film on the pallet base are as follows, for example. (1) A pallet base having a holding member for holding the winding core is prepared. (2) A roll of the intermediate film wound around the winding core is prepared, and the winding core with the intermediate film wound around it is vertically placed on the pallet base in a manner such that the holding member is located on the inner side of the opening end of the winding core. Furthermore, from the perspective of facilitating the operation of placing the winding core vertically on the pallet base, the inner diameter of the opening end of the winding core is relatively larger than the outer diameter of the retaining member, and there is a gap between the inner circumference of the opening end of the winding core and the outer circumference of the retaining member.

Therefore, the roller of the intermediate film is not placed in a completely vertical state relative to the upper surface of the pallet base (the angle formed by the axis of the roll core and the upper surface of the pallet base is 90°), but in a tilted state, and the pallet base is in contact with the roller of the intermediate film. If the pallet base is in contact with the roller of the intermediate film, wrinkles may be generated in the intermediate film.

If laminated glass is manufactured using an intermediate film in which wrinkles are generated, bubbles may occur in the laminated glass or optical distortion may occur.

The purpose of the present invention is to provide a roll packaging body that can suppress the generation of wrinkles in the intermediate film. [Technical means for solving the problem]

In the specification of this case, the following roll packaging body is disclosed.

Item 1. A roll packaging body, comprising: a pallet base having a first surface, a winding core, and a roller body having an intermediate film for laminated glass wound into a roll on the outer circumference of the winding core, the pallet base having a pallet base body and a retaining member for retaining the winding core, the retaining member of the pallet base having a portion protruding upward on the first surface side of the pallet base, the winding core being retained by the retaining member of the pallet base, the roll packaging body having the following structure (1) or the following structure (2).

Configuration (1): When the position of the outer periphery of the above-mentioned roller at which the distance from the outer periphery of the above-mentioned roller to the above-mentioned first surface of the above-mentioned pallet base becomes the shortest is set as the first position, the position of the outer periphery of the above-mentioned winding core at which the distance from the above-mentioned first position to the outer periphery of the above-mentioned winding core becomes the shortest is set as the second position, the distance from the above-mentioned second position to the above-mentioned first surface of the above-mentioned pallet base is set as A, the distance from the above-mentioned first position to the above-mentioned second position is set as B, and the angle formed by the straight line connecting the above-mentioned first position and the above-mentioned second position and the above-mentioned first surface of the above-mentioned pallet base is set as θ, C represented by the following formula (C) exceeds 0.

[Number 1]

Configuration (2): The above-mentioned pallet base has the above-mentioned pallet base body, the above-mentioned retaining member, and the buffer material, the upper surface of the above-mentioned buffer material is the above-mentioned first surface of the above-mentioned pallet base, and the upper surface of the above-mentioned buffer material is in contact with the above-mentioned roller.

Item 2. The roll packaging body as described in Item 1, which has the above-mentioned structure (1).

Item 3. The roll package according to Item 2, wherein the angle θ exceeds 0° and is equal to or less than 14.8°.

Item 4. The roll package as described in Item 2 or 3, wherein the above-mentioned A exceeds 0 cm and is less than 3 cm.

Item 5. A roll packaging body as described in any one of Items 2 to 4, wherein the absolute value of the difference between the outer diameter of the above-mentioned retaining member and the inner diameter of the open end of the winding core is greater than 0% and less than 20% relative to the outer diameter of the above-mentioned retaining member, and the height of the above-mentioned retaining member is greater than 3 cm and less than 10 cm.

Item 6. The roll package as set forth in any one of Items 2 to 5, wherein B is not less than 11.32 cm and not more than 28.57 cm.

Item 7. A roll packaging body as described in any one of Items 2 to 6, wherein when the position of the outer periphery of the above-mentioned roller body where the distance from the outer periphery of the above-mentioned roller body to the above-mentioned first surface of the above-mentioned pallet base is the longest is set to the third position, the distance from the above-mentioned first position to the above-mentioned first surface of the above-mentioned pallet base is set to D, and the distance from the above-mentioned third position to the above-mentioned first surface of the above-mentioned pallet base is set to E, the absolute value of the difference between the above-mentioned D and the above-mentioned E is less than 9.8 cm.

Item 8. The roll packaging body as recited in any one of Items 2 to 7, wherein the pallet base comprises the pallet base body, the retaining member, and a buffer member, and the upper surface of the buffer member is the first surface of the pallet base.

Item 9. The roll package as described in Item 8, wherein the buffer material is a polypropylene sheet, a foamed polypropylene sheet, a polycarbonate sheet, a plastic corrugated board, an environmentally friendly plastic sheet, or a paper sheet.

Item 10. The roll packaging body as described in Item 1, which has the above-mentioned structure (2).

Item 11. The roll package as described in Item 10, wherein the buffer material is a polypropylene sheet, a foamed polypropylene sheet, a polycarbonate sheet, a plastic corrugated board, an environmentally friendly plastic sheet, or a paper sheet.

Item 12. The roll package as described in any one of Items 1 to 11, wherein the intermediate film for laminated glass has a non-uniform thickness in the width direction of the intermediate film for laminated glass.

Item 13. A roll package as described in any one of Items 1 to 12, wherein the pallet base body comprises iron, resin, stainless steel, aluminum, wood, or cardboard.

Item 14. A roll package as described in any one of Items 1 to 13, wherein the roll core comprises polypropylene, polyethylene, polyvinyl chloride, paper, glass, cloth, wood, or fiber-reinforced plastic. [Effect of the invention]

According to the present invention, a roll packaging body capable of suppressing the generation of wrinkles in the intermediate film can be provided.

The roll package of the present invention comprises: a pallet base having a first surface, a winding core, and a roll body of an intermediate film for laminated glass wound in a roll shape on the outer peripheral surface of the winding core. In the roll package of the present invention, the pallet base has a pallet base body and a retaining member for retaining the winding core, and the retaining member of the pallet base has a portion protruding upward on the first surface side of the pallet base. In the roll package of the present invention, the winding core is retained by the retaining member of the pallet base.

The roll packaging body of the present invention has the following structure (1) or the following structure (2). The roll packaging body of the present invention may have the following structure (1) or the following structure (2).

Configuration (1): The position of the outer periphery of the roller at which the distance from the outer periphery of the roller to the first surface of the pallet base is the shortest is set as the first position, and the position of the outer periphery of the winding core at which the distance from the first position to the outer periphery of the winding core is the shortest is set as the second position. The distance from the second position to the first surface of the pallet base is set as A, the distance from the first position to the second position is set as B, and the angle formed by the straight line connecting the first position and the second position and the first surface of the pallet base is set as θ. At this time, C represented by the following formula (C) exceeds 0.

[Number 2]

Configuration (2): The above-mentioned pallet base has the above-mentioned pallet base body, the above-mentioned retaining member, and the buffer material, the upper surface of the above-mentioned buffer material is the above-mentioned first surface of the above-mentioned pallet base, and the upper surface of the above-mentioned buffer material is in contact with the above-mentioned roller.

Since the roll packaging body of the present invention has the above-mentioned structure, the generation of wrinkles in the intermediate film can be suppressed.

Therefore, when a laminated glass is produced using the interlayer film rolled out from the roll package of the present invention, bubbles are unlikely to occur in the laminated glass, and optical distortion is unlikely to occur.

The following describes the preferred embodiments of the present invention with reference to the drawings. However, the following embodiments are merely illustrative, and the present invention is not limited to the following embodiments. In addition, in each of the drawings, components having substantially the same function are referred to by the same reference numerals.

Hereinafter, the roll packaging body of the present invention will be described with reference to FIGS. 1 to 7 .

(First embodiment: a roll packaging body having structure (1)) Fig. 1 is a front view of a roll packaging body according to the first embodiment of the present invention. Fig. 1 is a front view of a roll packaging body having structure (1).

The roll package body 90 shown in FIG1 includes a pallet base 1, a winding core 2, a roller 3 of an intermediate film, a roller protection cover 4, a top plate member 5, and a supporting member 6. In addition, for the convenience of explanation, in FIG1, the roller protection cover 4 is indicated by a dotted line, and the roller 3 and other members arranged on the inner side of the roller protection cover 4 are also shown. In addition, for the convenience of explanation, in FIG1, the retaining member 12 of the pallet base 1 and the retaining member 52 of the top plate member 5 existing on the inner side of the opening end of the winding core 2 are indicated by a dotted line.

The pallet base 1 has a pallet base body 11 and a holding member 12 for holding a winding core. The pallet base 1 has a first surface 1a and a second surface 1b. The first surface 1a and the second surface 1b are surfaces facing each other on the pallet base 1. The holding member 12 has a portion protruding upward on the first surface 1a side.

The winding core 2 has openings at both ends. The winding core 2 has open ends.

The winding core 2 is arranged in such a manner that the holding member 12 is located inside the opening end of the winding core 2. Therefore, the winding core 2 is held by the holding member 12. The inner diameter of the opening end of the winding core 2 is larger than the outer diameter of the holding member 12.

The intermediate film is rolled up on the outer circumference of the winding core 2 to form the intermediate film roll 3. The intermediate film is rolled up on the outer circumference other than the two ends of the winding core 2. Therefore, the roll 3 is vertically placed on the pallet base 1.

In the roll packaging body 90 , the first surface 1 a of the pallet base 1 and the roller 3 are not in contact.

The roller protection cover 4 is a cover covering the outer surface of the roller 3. The outer surface of the roller 3 is covered by the roller protection cover 4.

The top plate component 5 is a component covering the upper portion of the roller body 3.

The supporting member 6 is a member for supporting the pallet base 1 and the top plate member 5.

First, the pallet base 1 will be described with reference to Fig. 2. Fig. 2 (a) and (b) are respectively a top view and a cross-sectional view showing a first example of the pallet base that can be used in the present invention. Fig. 2 (b) is a cross-sectional view along the I-I line in Fig. 2 (a).

The pallet base 1 has a pallet base body 11 and a retaining member 12. The pallet base 1 has a first surface 1a and a second surface 1b. The first surface 1a and the second surface 1b are surfaces facing each other on the pallet base 1. The first surface 1a is the upper main surface of the pallet base 1. The second surface 1b is the lower main surface of the pallet base 1. The second surface 1b of the pallet base 1 is a surface in contact with a loading surface such as the ground.

In the pallet base 1, the upper surface of the pallet base body 11 is the first surface 1a of the pallet base 1. In the pallet base 1, the lower surface of the pallet base body 11 is the second surface 1b of the pallet base 1. Furthermore, in order to reduce weight, the pallet base body 11 may have a gap. Therefore, a gap may exist on the upper surface of the pallet base body 11. The upper surface of the pallet base body 11 refers to the upper surface of the pallet base body 11 when a gap exists on the upper surface, assuming that the upper surface of the pallet base body 11 does not have a gap. The first surface 1a of the pallet base 1 refers to the upper surface of the pallet base body 11 when a gap exists on the upper surface of the pallet base body 11, assuming that the upper surface of the pallet base body 11 does not have a gap.

The size, shape and material of the pallet base body 11 are not particularly limited as long as they can carry the roller of the winding core and the intermediate film. As the pallet base body 11, a previously known component known as a pallet can be used. The pallet base body 11 can be an assembly composed of a plurality of frames.

The material of the pallet base body 11 is not particularly limited. The pallet base body 11 can be made of metal, resin, fiber reinforced plastic, wood, or paper. The pallet base body 11 made of resin can be made of foamed resin.

The pallet base body 11 includes, for example, iron, resin, stainless steel, aluminum, wood, or cardboard. The iron may be plated iron. Examples of the resin include polypropylene and the like.

The holding member 12 is mounted on the pallet base body 11. The holding member 12 may be detachable from the pallet base body 11 or may not be detachable. The holding member 12 may be separable from the pallet base body 11 or may not be separable.

The retaining member 12 has a portion protruding upward on the first surface 1a side of the pallet base 1. The upper surface of the retaining member 12 is located above the first surface 1a of the portion of the pallet base 1 other than the retaining member 12. The retaining member 12 has an opening 12a. By having the retaining member 12 with the opening 12a, the pallet base 1 can be made lighter than when the retaining member 12 does not have the opening 12a. When manufacturing the roll packaging body 90, the inner side of the opening end of the core 2 is arranged on the outer side of the retaining member 12 (outside of the opening 12a of the retaining member 12). In the roll packaging body 90, the inner side of the opening end of the lower side of the core 2 is arranged on the outer side of the retaining member 12 (outside of the opening 12a of the retaining member 12). The outer shape of the holding member 12 is circular when the pallet base 1 is viewed from above. In addition, the outer shape of the holding member 12 may be other than circular when the pallet base 1 is viewed from above. The shape of the holding member 12 is not particularly limited as long as it can hold the winding core 2.

The outer diameter of the retaining member 12 is smaller than the inner diameter of the opening end of the core 2. The ratio of the absolute value of the difference between the outer diameter of the retaining member 12 and the inner diameter of the opening end of the core 2 to the outer diameter of the retaining member 12 is preferably 0% or more, more preferably 4% or more, preferably 20% or less, and more preferably 15% or less. The above ratio is expressed by the formula: [(absolute value of the difference between the outer diameter of the retaining member 12 and the inner diameter of the opening end of the core 2)/outer diameter of the retaining member 12]×100. If the above ratio is above the above lower limit, it is easy to arrange the retaining member 12 on the inner side of the opening end of the core 2 when manufacturing the roll packaging body 90, so that the core 2 can be easily placed vertically on the pallet base. If the above ratio is below the above upper limit, the inclination of the roller 3 of the intermediate film can be effectively suppressed, and the effect of the present invention can be more effectively exerted.

The height of the holding member 12 is preferably 3 cm or more, more preferably 4 cm or more, preferably 10 cm or less, and more preferably 9 cm or less. If the height of the holding member 12 is above the lower limit and below the upper limit, the tilt of the roller 3 of the intermediate film can be effectively suppressed, and the effect of the present invention can be more effectively exerted. Furthermore, the height of the holding member 12 refers to the distance from the upper surface of the pallet base body 11 to the upper surface of the holding member 12.

The material of the holding member 12 is not particularly limited. The holding member 12 can be made of metal, resin, fiber reinforced plastic, wood, or paper. The holding member 12 made of resin can be made of foamed resin.

The material of the support base body 11 and the material of the retaining member 12 may be the same or different.

The pallet base 1 has two holding members 12. The pallet base 1 may have only one holding member 12, may have two, or may have more than two.

Members for holding the supporting member 6 may be disposed at four corners of the first surface 1 a of the pallet base 1 , and the members extend upward from the first surface 1 a .

Next, referring also to FIG. 3 , the structure (1) of the roll packaging body 90 will be described.

In Fig. 3, the components necessary for explaining the structure (1) in the roll package body 90 are shown, namely, the pallet base 1, the winding core 2, and the roller 3. Furthermore, for the convenience of explanation, the retaining member 12 disposed on the inner side of the opening end of the winding core 2 is indicated by a dotted line.

The position of the outer periphery of the roller 3 where the distance from the outer periphery of the roller 3 to the first surface 1a of the pallet base 1 is the shortest is set as the first position P1. The position of the outer periphery of the winding core 2 where the distance from the first position P1 to the outer periphery of the winding core 2 is the shortest is set as the second position P2. The position of the outer periphery of the roller 3 where the distance from the outer periphery of the roller 3 to the first surface 1a of the pallet base 1 is the longest is set as the third position P3. The position of the intersection of the straight line connecting the first position P1 and the second position P2 and the first surface 1a of the pallet base 1 is set as the fourth position P4.

The distance from the second position P2 to the first surface 1a of the pallet base 1 is A (cm). The distance from the first position P1 to the second position P2 is B (cm). The distance from the first position P1 to the first surface 1a of the pallet base 1 is D (cm). The distance from the third position P3 to the first surface 1a of the pallet base 1 is E (cm).

An angle formed by a straight line connecting the first position P1 and the second position P2 and the first surface 1 a of the pallet base 1 is θ.

In the roll packaging body 90 having the above-mentioned configuration (1), C represented by the following formula (C) exceeds 0. Therefore, in the roll packaging body 90, the generation of wrinkles in the intermediate film can be suppressed.

[Number 3]

Furthermore, the above-mentioned C generally refers to the distance from the first position P1 to the fourth position P4, which is the distance (cm) represented by C in FIG. 3 .

In the roll packaging body 90 having the above-mentioned structure (1), C represented by the above-mentioned formula (C) exceeds 0 cm, and is preferably 0.5 cm or more. If C represented by the above-mentioned formula (C) is above the above-mentioned lower limit, the effect of the present invention can be more effectively exerted. Furthermore, C represented by the above-mentioned formula (C) may be 160 cm or less, 100 cm or less, 75 cm or less, 70 cm or less, 60 cm or less, 55 cm or less, 30 cm or less, 20 cm or less, 10 cm or less, or 5 cm or less.

The roller 3 is not placed in a state perpendicular to the first surface 1a of the pallet base 1 (the angle formed by the axis of the winding core 2 and the first surface 1a of the pallet base 1 is 90°). The roller 3 is placed in a state of tilting (the angle formed by the axis of the winding core 2 and the first surface 1a of the pallet base 1 is less than 90°). In addition, the roller 3 is placed in a state in which C represented by the above formula (C) exceeds 0.

The above-mentioned A refers to the distance from the second position P2 to the first surface 1a of the pallet base 1. The above-mentioned A is preferably more than 0 cm, more preferably more than 0.5 cm, more preferably less than 3 cm, and more preferably less than 2.5 cm. If the above-mentioned A is greater than the above-mentioned lower limit and less than the above-mentioned upper limit, the effect of the present invention can be more effectively exerted.

The above B refers to the distance from the first position P1 to the second position P2. The above B is preferably greater than 11.32 cm, more preferably greater than 15.00 cm, more preferably less than 28.60 cm, more preferably less than 28.57 cm, and further preferably less than 25.00 cm. If the above B is greater than the above lower limit and less than the above upper limit, the effect of the present invention can be more effectively exerted. Although the larger the above B, the easier it is for wrinkles to be generated in the roller of the intermediate membrane, in the present invention, even if the above B is larger, the generation of wrinkles in the roller of the intermediate membrane can be effectively suppressed.

The above-mentioned D refers to the distance from the first position P1 to the first surface 1a of the pallet base 1. In the roll packaging body 90 having the above-mentioned structure (1), the above-mentioned D exceeds 0 cm. The above-mentioned D is preferably 0.5 cm or more, more preferably 1.0 cm or more, preferably 9.8 cm or less, and more preferably 9.0 cm or less. If the above-mentioned D is above the above-mentioned lower limit and below the above-mentioned upper limit, the effect of the present invention can be more effectively exerted.

The above-mentioned E refers to the distance from the third position P3 to the first surface 1a of the pallet base 1. In the roll packaging body 90 having the above-mentioned structure (1), the above-mentioned E exceeds 0 cm. The above-mentioned E is preferably 0.5 cm or more, more preferably 1.0 cm or more, preferably 9.8 cm or less, and more preferably 9.0 cm or less. If the above-mentioned E is above the above-mentioned lower limit and below the above-mentioned upper limit, the effect of the present invention can be more effectively exerted.

Usually, the above D is smaller than the above E.

The absolute value of the difference between the above D and the above E is preferably 0.5 cm or more, more preferably 1.3 cm or more, preferably 9.8 cm or less, and more preferably 8.2 cm or less. If the absolute value of the above difference is above the above lower limit and below the above upper limit, the effect of the present invention can be more effectively exerted.

The above θ refers to the angle formed by the straight line connecting the first position P1 and the second position P2 and the first surface 1a of the pallet base 1. The above θ is preferably greater than 0°, more preferably greater than 2°, more preferably less than 14.8°, and more preferably less than 12°. If the above θ is greater than the above lower limit and less than the above upper limit, the effect of the present invention can be more effectively exerted.

Next, the winding core 2 will be described.

As the core 2, a previously known core can be used. The core 2 is in the shape of a cylinder with openings at both ends. The core 2 has open ends. The core 2 has openings at both ends. The shape of the core 2 is not particularly limited as long as it can be held by the holding member 12. The core 2 may be, for example, cylindrical, cylindrical with openings at both ends, or other shapes.

The material of the winding core 2 is not particularly limited. The winding core 2 can be made of metal, resin, fiber reinforced plastic, wood, paper, or glass. The winding core 2 made of resin can be made of foamed resin.

The winding core 2 includes, for example, polypropylene, polyethylene, polyvinyl chloride, paper, glass, cloth, wood, or fiber reinforced plastic. The wood may be bamboo.

Next, the roller 3 and the intermediate film constituting the roller 3 will be described.

As the above-mentioned intermediate membrane, a previously known intermediate membrane can be used. The above-mentioned intermediate membrane has a single-layer structure or a structure of two or more layers. The above-mentioned intermediate membrane may have a single-layer structure, a two-layer structure, or a structure of two or more layers. The above-mentioned intermediate membrane may have a three-layer structure, a three-layer structure, a four-layer structure, a four-layer structure, a five-layer structure, or a structure of five or more layers. The above-mentioned intermediate membrane may have a structure of less than 10 layers, or a structure of less than 5 layers. The above-mentioned intermediate membrane may have only a first layer. The above-mentioned intermediate membrane may have a first layer and a second layer disposed on the first surface side of the above-mentioned first layer. The intermediate film may include a first layer, a second layer disposed on a first surface side of the first layer, and a third layer disposed on a second surface side of the first layer which is opposite to the first surface.

The intermediate film may include a thermoplastic resin or a thermoplastic resin and a plasticizer. The intermediate film may include a layer including a thermoplastic resin or a layer including a thermoplastic resin and a plasticizer. The first layer preferably includes a thermoplastic resin or a thermoplastic resin and a plasticizer. The second layer preferably includes a thermoplastic resin or a thermoplastic resin and a plasticizer. The third layer preferably includes a thermoplastic resin or a thermoplastic resin and a plasticizer.

Examples of the thermoplastic resin include polyvinyl acetal resin, ethylene-vinyl acetate copolymer resin, ethylene-acrylic acid copolymer resin, polyurethane resin, (meth)acrylic acid resin, polyolefin resin, ionic polymer resin, and polyvinyl alcohol resin. Other thermoplastic resins may be used. The thermoplastic resin may be used alone or in combination of two or more.

The above-mentioned plasticizer is not particularly limited. As the above-mentioned plasticizer, a previously known plasticizer can be used. As the above-mentioned plasticizer, organic ester plasticizers such as monobasic organic acid esters and polybasic organic acid esters, organic phosphoric acid plasticizers, and organic phosphorous acid plasticizers can be listed. The above-mentioned plasticizer is preferably an organic ester plasticizer. The above-mentioned plasticizer is preferably a liquid plasticizer. The above-mentioned plasticizer can be used alone or in combination of two or more.

The intermediate film may include other components such as heat-insulating materials, ultraviolet absorbers, antioxidants, colorants, coupling agents, dispersants, surfactants, flame retardants, antistatic agents, adhesion modifiers (alkali metal salts and alkaline earth metal salts, etc.), antihumidifiers, fluorescent brighteners, and infrared absorbers. Each of the other components may be used alone or in combination of two or more.

The intermediate film may have a uniform thickness or a non-uniform thickness in the width direction of the intermediate film. In the intermediate film with a non-uniform thickness in the width direction of the intermediate film, wrinkles are easily generated in the roller of the intermediate film. However, in the present invention, even if the intermediate film has a non-uniform thickness, the generation of wrinkles in the roller of the intermediate film can be effectively suppressed.

The roller diameter of the roller body 3 may be fixed or different along the axial direction of the winding core 2. In the roller body 3, the roller diameter of the end portion on the side of the pallet base 1 may be different from the roller diameter of the end portion on the side of the top plate member 5. In the roller body 3, the roller diameter of the end portion on the side of the pallet base 1 may be larger or smaller than the roller diameter of the end portion on the side of the top plate member 5. In the case where the above-mentioned intermediate film is an intermediate film having a non-uniform thickness in the width direction of the intermediate film, the roller diameter of the roller body 3 is usually different at the end portion on the side of the pallet base 1 and at the end portion on the side of the top plate member 5.

The minimum value of the roller diameter of the roller body 3 is preferably greater than 38.5 cm, more preferably greater than 35.0 cm, preferably less than 73.0 cm, and more preferably less than 70.0 cm.

Furthermore, the roller diameter of the roller 3 refers to the outer diameter of the roller 3 .

Next, the roller protection cover 4 will be described.

The roller protection cover 4 is a member that covers the outer surface of the roller 3. The roller protection cover 4 is used to protect the roller 3 from dust and the like. As the roller protection cover 4, a conventionally known roller protection cover can be used.

The roller protection cover 4 preferably covers the entire outer peripheral surface of the roller 3. The roller protection cover 4 may or may not be in contact with the outer peripheral surface of the roller 3.

The roller protection cover 4 can be made of resin, paper, aluminum, or a composite material thereof.

Furthermore, the roller protection cover 4 may not be used.

Next, the top plate component 5 is described.

The top plate member 5 has a top plate member body 51 and a retaining member 52 for retaining the winding core. As the top plate member 5, a previously known top plate member can be used.

The material of the roof component body 51 is not particularly limited. The roof component body 51 can be made of metal, resin, fiber reinforced plastic, wood, or paper. The resin roof component body 51 can be made of foamed resin.

The holding member 52 is mounted on the top plate member body 51. The holding member 52 may be detachable from the top plate member body 51 or may not be detachable. The holding member 52 and the top plate member body 51 may be separable or may not be separable.

The retaining member 52 has a portion protruding downward on the lower surface side of the top plate member body 51. The retaining member 52 has an opening. By having the retaining member 52 have an opening, the top plate member 5 can be made lighter than when the retaining member 52 has no opening. When the roll packaging body 90 is manufactured, the inner side of the opening end of the core 2 is arranged on the outer side of the retaining member 52 (the outer side of the opening of the retaining member 52). In the roll packaging body 90, the inner side of the opening end of the upper side of the core 2 is arranged on the outer side of the retaining member 52 (the outer side of the opening of the retaining member 52). When the top plate member 5 is observed from the bottom, the outer shape of the retaining member 52 is circular. When the top plate member 5 is viewed from the bottom, the shape of the holding member 52 may be other than a circular shape. The shape of the holding member 52 is not particularly limited as long as it can hold the winding core 2.

The outer diameter of the retaining member 52 is smaller than the inner diameter of the opening end of the core 2. The ratio of the absolute value of the difference between the outer diameter of the retaining member 52 and the inner diameter of the opening end of the core 2 to the outer diameter of the retaining member 52 is preferably 0% or more, more preferably 4% or more, preferably 20% or less, and more preferably 15% or less. The above ratio is expressed by the formula: [(the absolute value of the difference between the outer diameter of the retaining member 52 and the inner diameter of the opening end of the core 2)/the outer diameter of the retaining member 52]×100. If the above ratio is greater than the above lower limit, it is easy to arrange the retaining member 52 on the inner side of the opening end of the core 2 when manufacturing the roll packaging body 90. If the above ratio is below the above upper limit, the inclination of the roller 3 of the intermediate film can be effectively suppressed, and the effect of the present invention can be more effectively exerted.

The material of the holding member 52 is not particularly limited. The holding member 52 can be made of metal, resin, fiber-reinforced plastic, wood, or paper. The holding member 52 made of resin can be made of foamed resin.

The material of the top plate component body 51 and the material of the retaining component 52 can be the same or different.

The top plate component body 51 has two retaining components 52. Furthermore, the top plate component body 51 may have only one retaining component 52, may have two, or may have more than two.

Next, the supporting member 6 will be described.

The support member 6 is, for example, a metal member. The support member 6 is erected at the four corners of the pallet base 1. The pallet base 1 is connected to the top plate member 5 by the support member 6. From the viewpoint of stably supporting the pallet base 1 and the top plate member 5, it is preferred to use 4 or more support members 6, and more preferably 8 or more support members 6, relative to one pallet base 1. As the support member 6, a previously known support member can be used.

(Second embodiment: a roll packaging body having structure (1)) Fig. 4 is a front view of a roll packaging body according to the second embodiment of the present invention. Fig. 4 is a front view of a roll packaging body having structure (1).

The roll package body 90A shown in FIG4 includes a pallet base 1A, a winding core 2, a roller 3 of an intermediate film, a roller protection cover 4, a top plate member 5, and a supporting member 6. The configuration of the pallet base is different between the roll package body 90 shown in FIG1 and the roll package body 90A shown in FIG4. Furthermore, for the convenience of explanation, in FIG4, the roller protection cover 4 is indicated by a dotted line, and the roller 3 and other members arranged on the inner side of the roller protection cover 4 are also shown. Also, for the convenience of explanation, in FIG4, the retaining member 12 of the pallet base 1A and the retaining member 52 of the top plate member 5 existing on the inner side of the opening end of the winding core 2 are indicated by a dotted line. Furthermore, unlike FIG. 1 , FIG. 4 shows a portion of one of the two rollers 3 .

The pallet base 1A has a pallet base body 11, a holding member 12 for holding a winding core, and a buffer material 13. The pallet base 1A has a first surface 1Aa and a second surface 1Ab. The first surface 1Aa and the second surface 1Ab are surfaces facing each other on the pallet base 1A. The holding member 12 has a portion protruding upward on the first surface 1Aa side.

The winding core 2 has openings at both ends. The winding core 2 has open ends.

The core 2 is arranged in such a manner that the holding member 12 is located inside the opening end of the core 2. Therefore, the core 2 is held by the holding member 12. The inner diameter of the opening end of the core 2 is larger than the outer diameter of the holding member 12. Furthermore, in the roll package 90A, a portion of the lower end of the core 2 may be located above the first surface 1Aa of the pallet base 1A. In the roll package 90A, the entire lower end of the core 2 may be located below the first surface 1Aa of the pallet base 1A.

The intermediate film is wound into a roll on the outer circumference of the winding core 2 to form an intermediate film roll body 3. The intermediate film is wound into a roll on the outer circumference other than the two end portions of the winding core 2. Therefore, the roll body 3 is vertically placed on the pallet base 1A.

In the roll packaging body 90A, the first surface 1Aa of the pallet base 1A and the roller 3 are not in contact.

In addition, since the preferred structures of the winding core 2, the roller 3, the roller protection cover 4, the top plate member 5 and the supporting member 6 in the roll packaging body 90A are as described in the above-mentioned "first embodiment", the description thereof is omitted.

Next, the pallet base 1A will be described with reference to Fig. 5. Fig. 5 (a) and (b) are respectively a top view and a cross-sectional view showing a second example of the pallet base that can be used in the present invention. Fig. 5 (b) is a cross-sectional view along the I-I line in Fig. 5 (a).

The pallet base 1A has a first surface 1Aa. The pallet base 1A has a pallet base body 11, a retaining member 12, and a buffer material 13. The pallet base 1A has a first surface 1Aa and a second surface 1Ab. The first surface 1Aa and the second surface 1Ab are surfaces facing each other on the pallet base 1A. The second surface 1Ab of the pallet base 1A is a surface in contact with a loading surface such as the ground. The first surface 1Aa is an upper main surface of the pallet base 1A. The second surface 1Ab is a lower main surface of the pallet base 1A.

Since the preferred structure of the pallet base body 11 and the retaining member 12 in the pallet base 1A is as described in the above-mentioned "First Embodiment", the description thereof is omitted.

In the pallet base 1A, the buffer member 13 is disposed on the upper surface of the pallet base body 11. In the pallet base 1A, the upper surface of the buffer member 13 is the first surface 1Aa of the pallet base 1A.

The material of the buffer material 13 is not particularly limited as long as it can function as a buffer material. The hardness of the buffer material 13 is preferably less than the hardness of the pallet base body 11. The buffer material 13 is preferably more flexible than the pallet base body 11. The buffer material 13 is preferably more cushioning than the pallet base body 11.

From the viewpoint of effectively suppressing the generation of wrinkles in the intermediate film when the buffer material 13 contacts the roller 3, the buffer material 13 is preferably a polypropylene sheet, a foamed polypropylene sheet, a polycarbonate sheet, a plastic corrugated board, an environmentally friendly plastic sheet, or a paper sheet.

The thickness of the buffer material 13 may be greater than 1 mm, greater than 5 mm, less than 15 mm, or less than 10 mm.

The pallet base 1A has one piece of buffer material 13. The pallet base 1A may have more than one piece of buffer material 13, may have two pieces, or may have more than two pieces. In the pallet base 1A, more than two pieces of buffer material 13 may be overlapped and arranged on the upper surface of the pallet base body 11. In this case, the thickness and type of the more than two pieces of buffer material 13 may be the same or different.

When the pallet base 1A has two or more buffer materials 13, the total thickness of the buffer materials 13 may be greater than 1 mm, greater than 5 mm, less than 15 mm, or less than 10 mm.

Next, referring also to FIG. 6 , the structure (1) of the roll packaging body 90A will be described.

In FIG. 6 , components necessary for explaining the structure (1) in the roll package body 90A, namely, the pallet base 1A, the winding core 2, and the roller 3 are shown. Furthermore, for the convenience of explanation, the retaining member 12 disposed on the inner side of the opening end of the winding core 2 is indicated by a dotted line. Also, for the convenience of illustration, the lower end portion of the winding core 2 (the lower end portion of the winding core 2 disposed on the inner side of the buffer material 13) which cannot be seen in the front view of the roll package body 90A is also shown.

As described above, in the pallet base 1A, the upper surface of the buffer member 13 is the first surface 1Aa of the pallet base 1A.

The position of the outer periphery of the roller 3 where the distance from the outer periphery of the roller 3 to the first surface 1Aa of the pallet base 1A is the shortest is set as the first position P1. The position of the outer periphery of the winding core 2 where the distance from the first position P1 to the outer periphery of the winding core 2 is the shortest is set as the second position P2. The position of the outer periphery of the roller 3 where the distance from the outer periphery of the roller 3 to the first surface 1Aa of the pallet base 1A is the longest is set as the third position P3. The position of the intersection of the straight line connecting the first position P1 and the second position P2 and the first surface 1Aa of the pallet base 1A is set as the fourth position P4.

The distance from the second position P2 to the first surface 1Aa of the pallet base 1A is A (cm). The distance from the first position P1 to the second position P2 is B (cm). The distance from the first position P1 to the first surface 1Aa of the pallet base 1A is D (cm). The distance from the third position P3 to the first surface 1Aa of the pallet base 1A is E (cm).

An angle formed by a straight line connecting the first position P1 and the second position P2 and the first surface 1Aa of the pallet base 1A is θ.

In the roll packaging body 90A having the above-mentioned configuration (1), C represented by the following formula (C) exceeds 0. Therefore, in the roll packaging body 90A, the generation of wrinkles in the intermediate film can be suppressed.

[Number 4]

Furthermore, the above-mentioned C generally refers to the distance from the first position P1 to the fourth position P4, which is the distance (cm) represented by C in FIG. 6 .

In addition, since the preferred configurations of the above-mentioned A, the above-mentioned B, the above-mentioned C, the above-mentioned D, the above-mentioned E, and the above-mentioned θ in the roll packaging body 90A are as described in the above-mentioned "first embodiment", the description thereof is omitted.

(Third embodiment: a roll packaging body having structure (2)) Fig. 7 is a front view of a roll packaging body according to the third embodiment of the present invention. Fig. 7 is a front view of a roll packaging body having structure (2).

The roll package body 90B shown in FIG7 includes a pallet base 1A, a winding core 2, a roller 3 of an intermediate film, a roller protection cover 4, a top plate member 5, and a support member 6. Furthermore, for the convenience of explanation, in FIG7, the roller protection cover 4 is indicated by a dotted line, and the roller 3 and other members arranged on the inner side of the roller protection cover 4 are also shown. Also, for the convenience of explanation, in FIG7, the retaining member 12 of the pallet base 1A and the retaining member 52 of the top plate member 5 existing on the inner side of the opening end of the winding core 2 are indicated by a dotted line. Moreover, unlike FIG1, in FIG7, a portion of one of the two rollers 3 is shown.

The pallet base 1A has a pallet base body 11, a retaining member 12 for retaining a winding core, and a buffer material 13. In addition, the pallet base 1A has a first surface 1Aa and a second surface 1Ab. The first surface 1Aa and the second surface 1Ab are surfaces facing each other on the pallet base 1A. The retaining member 12 has a portion protruding upward on the first surface 1Aa side. In the pallet base 1A, the buffer material 13 is arranged on the upper surface of the pallet base body 11. In the pallet base 1A, the upper surface of the buffer material 13 is the first surface 1Aa of the pallet base 1A.

The winding core 2 has openings at both ends. The winding core 2 has open ends.

The core 2 is arranged in such a manner that the holding member 12 is located inside the opening end of the core 2. Therefore, the core 2 is held by the holding member 12. The inner diameter of the opening end of the core 2 is larger than the outer diameter of the holding member 12. Furthermore, in the roll package body 90B, a part of the lower end of the core 2 may be located above the first surface 1Aa of the pallet base 1A. In the roll package body 90B, the entire lower end of the core 2 may be located below the first surface 1Aa of the pallet base 1A.

The intermediate film is wound into a roll on the outer circumference of the winding core 2 to form an intermediate film roll body 3. The intermediate film is wound into a roll on the outer circumference other than the two end portions of the winding core 2. Therefore, the roll body 3 is vertically placed on the pallet base 1A.

In the roll packaging body 90B shown in FIG. 7 , unlike the roll packaging body 90A shown in FIG. 4 , the first surface 1Aa (the upper surface of the buffer member 13 ) of the pallet base 1A is in contact with the roller 3 .

Since the buffer material 13 is provided in the roll packaging body 90B having the structure (2), even if the first surface 1Aa (the upper surface of the buffer material 13) of the pallet base 1A contacts the roller body 3, the generation of wrinkles in the intermediate film can be effectively suppressed.

Since the preferred configurations of the core 2, the roll 3, the roll protection cover 4, the top plate member 5 and the support member 6 in the roll package body 90B are as described in the above-mentioned "first embodiment", the description thereof is omitted. Since the preferred configurations of the pallet base 1A in the roll package body 90B are as described in the above-mentioned "second embodiment", the description thereof is omitted.

(Other details of the roll packaging body) The roll packaging body of the present invention has the above-mentioned pallet base, the above-mentioned winding core, and the above-mentioned intermediate film roll. The roll packaging body of the present invention has the above-mentioned structure (1) or the above-mentioned structure (2).

The roll packaging body of the present invention may or may not have the above-mentioned protective cover. The roll packaging body of the present invention may or may not have the above-mentioned top plate member. The roll packaging body of the present invention may or may not have the above-mentioned supporting member.

The roll package of the present invention may also have other components besides the above components (pallet base, winding core, roller, roller protection cover, top plate component, supporting component). For example, the roll package of the present invention may be wound with a sheet material in a manner covering the above winding core, the above roller, and the above supporting component. The roll package of the present invention may also be wrapped with a sheet material in a manner covering the above winding core, the above roller, and the above supporting component.

Furthermore, in the roll packaging body of the present invention having the configuration (1), the pallet base may be a pallet base having the pallet base body and the retaining member, or may be a pallet base having the pallet base body, the retaining member and the buffer member.

The intermediate film may be an extruded product. The intermediate film preferably has an MD direction and a TD direction. The MD direction refers to the running direction of the intermediate film when the intermediate film is manufactured. The TD direction refers to the direction orthogonal to the running direction of the intermediate film when the intermediate film is manufactured and to the thickness direction of the intermediate film. The intermediate film is usually wound into a roll on the outer peripheral surface of the winding core along the MD direction.

The above-mentioned interlayer film for laminated glass is used to obtain laminated glass (the above-mentioned interlayer film for laminated glass is used for laminated glass). The above-mentioned interlayer film for laminated glass is an interlayer film suitable for obtaining laminated glass. The above-mentioned interlayer film for laminated glass is cut into the size of laminated glass for use. The above-mentioned roller of the interlayer film for laminated glass is used to obtain laminated glass (the above-mentioned roller of the interlayer film for laminated glass is used for laminated glass). The above-mentioned roller of the interlayer film for laminated glass is a roller suitable for obtaining laminated glass. The above-mentioned roller of the interlayer film for laminated glass is cut into the size of laminated glass for use. The above-mentioned laminated glass has a first laminated glass component, a second laminated glass component, and the above-mentioned interlayer film. In the laminated glass, the intermediate film is disposed between the first laminated glass component and the second laminated glass component.

The first laminated glass member is preferably a first glass plate. The second laminated glass member is preferably a second glass plate.

As the first and second laminated glass components, glass plates and PET (polyethylene terephthalate) films can be cited. The laminated glass includes not only laminated glass with an intermediate film between two glass plates, but also laminated glass with an intermediate film between a glass plate and a PET film. The laminated glass is a laminate having glass plates, and preferably at least one glass plate is used. The first laminated glass component and the second laminated glass component are respectively glass plates or PET films, and the laminated glass preferably has a glass plate as at least one of the first laminated glass component and the second laminated glass component. It is particularly preferred that both the first and second laminated glass components are glass plates.

The present invention is described below by listing specific embodiments and comparative examples of the present invention. The present invention is not limited to the following embodiments.

Prepare as follows.

<Pallet base> Pallet base (1): A pallet base having a pallet base body (made of steel), a retaining member (outer diameter 14.75 cm and height 4.6 cm), and a buffer material (15 mm thick foamed polypropylene sheet, "Paulownia" manufactured by Mitsui Chemicals Tohcello Co., Ltd.) (a pallet base having a shape similar to that of Figure 5) Pallet base (2): A pallet base body (made of steel), a retaining member (outer diameter 14.75 cm and height 3.0 cm), and a buffer material (15 mm thick foamed polypropylene sheet, "Paulownia" manufactured by Mitsui Chemicals Tohcello Co., Ltd.) (a pallet base having a shape similar to that of Figure 5) Pallet base (3): A pallet base body (made of steel), a retaining member (outer diameter 13.86 cm and height 4.6 cm), and a buffer material (15 mm thick foamed polypropylene sheet, "Paulownia" manufactured by Mitsui Chemicals Tohcello Co., Ltd.) pallet base (a pallet base having a shape similar to that of Figure 5) Pallet base (4): a pallet base having a main body (made of polypropylene), a retaining member (outer diameter 14.75 cm and height 4.6 cm), and a buffer material (15 mm thick foamed polypropylene sheet, "Paulownia" manufactured by Mitsui Chemicals Tohcello Co., Ltd.) pallet base (a pallet base having a shape similar to that of Figure 5) Pallet base (5): a pallet base having a main body (made of steel) and a retaining member (outer diameter 14.75 cm and height 4.6 cm) pallet base (a pallet base having a shape similar to that of Figure 2) Pallet base (6): A pallet base having a pallet base body (made of steel), a retaining member (outer diameter 14.75 cm and height 4.6 cm), and a buffer material (10 mm thick foamed polypropylene sheet, "Paulownia" manufactured by Mitsui Chemicals Tohcello Co., Ltd.) (a pallet base having a shape similar to that of FIG. 5) Pallet base (7): A pallet base having a pallet base body (made of steel), a retaining member (outer diameter 14.75 cm and height 4.6 cm), and a buffer material (10 mm thick paper sheet) (a pallet base having a shape similar to that of FIG. 5) Pallet base (X1): A pallet base having a pallet base body (made of steel) and a retaining member (outer diameter 11.55 cm and height 4.6 cm) (a pallet base having a shape similar to that of FIG. 2) Pallet base (X2): A pallet base having a pallet base body (made of steel) and a retaining member (outer diameter 14.75 cm and height 1.0 cm) (a pallet base having a shape similar to that of Figure 2) Pallet base (X3): A pallet base having a pallet base body (made of steel) and a buffer material (15 mm thick foamed polypropylene sheet, "Paulownia" manufactured by Mitsui Chemicals Tohcello Co., Ltd.)

Prepare the following rolling cores.

<Roll core> Roll core (made of polypropylene, outer diameter: 15.8 cm, inner diameter of the opening: 15.4 cm)

<Intermediate film> Intermediate film (1) (intermediate film produced by the following production method (1)) Intermediate film (2) (intermediate film produced by the following production method (2))

[Method for producing intermediate film (1) (1)] Production of a composition for forming the first layer: Mix the following ingredients and knead them thoroughly with a mixing roll to obtain a composition for forming the first layer.

Polyvinyl acetal resin (average degree of polymerization 3000, hydroxyl content 22 mol, acetylation degree 13 mol, acetylation degree 65 mol) 100 parts by weight Triethylene glycol di-2-ethylhexanoate (3GO) 60 parts by weight Tinuvin 326 (2-(2'-hydroxy-3'-tert-butyl-5-methylphenyl)-5-chlorobenzotriazole, "Tinuvin 326" manufactured by BASF) in an amount of 0.2% by weight in the first layer obtained BHT (2,6-di-tert-butyl-p-cresol) in an amount of 0.2% by weight in the first layer obtained

Preparation of the composition for forming the second layer and the third layer: The following ingredients are prepared and fully kneaded with a mixing roller to obtain the composition for forming the second layer and the third layer.

Polyvinyl acetal resin (average degree of polymerization 1700, hydroxyl content 30.5 mol, acetylation degree 1 mol, acetylation degree 68.5 mol%) 100 parts by weight Triethylene glycol di-2-ethylhexanoate (3GO) 38 parts by weight Tinuvin 326 (2-(2'-hydroxy-3'-tert-butyl-5-methylphenyl)-5-chlorobenzotriazole, "Tinuvin 326" manufactured by BASF) in an amount of 0.2% by weight in the obtained second and third layers BHT (2,6-di-tert-butyl-p-cresol) in an amount of 0.2% by weight in the obtained second and third layers

The composition for forming the first layer and the composition for forming the second layer and the third layer are extruded simultaneously using an extruder to obtain a wedge-shaped intermediate film (1) having a layered structure of the second layer/the first layer/the third layer. The intermediate film (1) obtained has a minimum thickness (760 μm) at one end and a maximum thickness (1260 μm) at the other end. The distance between the one end and the other end of the intermediate film (1) is 1 m.

[Method for producing the intermediate film (2) (2)] Production of a composition for forming the intermediate film (first layer): The following ingredients are mixed and fully kneaded with a mixing roll to obtain a composition for forming the intermediate film.

Polyvinyl acetal resin (average degree of polymerization 1700, hydroxyl content 30.5 mol, acetylation degree 1.0 mol, acetylation degree 68.5 mol%) 100 parts by weight Triethylene glycol di-2-ethylhexanoate (3GO) 40 parts by weight Tinuvin 326 (2-(2'-hydroxy-3'-tert-butyl-5-methylphenyl)-5-chlorobenzotriazole, "Tinuvin 326" manufactured by BASF) in an amount of 0.2% by weight in the obtained interlayer BHT (2,6-di-tert-butyl-p-cresol) in an amount of 0.2% by weight in the obtained interlayer

Preparation of the intermediate film: The composition for forming the intermediate film is extruded using an extruder to obtain an intermediate film (2) having a one-layer structure. The thickness of the intermediate film obtained is 780 μm (fixed). The distance between one end and the other end of the intermediate film (2) is 1 m.

(Example 1) (1) Preparation of intermediate film roll: The intermediate film (1) is wound on the outer circumference of the winding core into a roll to obtain the intermediate film roll.

(2) Production of a roll package: The roll of the intermediate film wound around the roll core is arranged in such a way that the retaining member in the pallet base (1) is located inside the opening end of the roll core. The supporting member is set on the pallet base (1), and then the top plate member is set. In this way, a roll package is produced.

(Examples 2 to 14 and Comparative Examples 1 to 3) Except for changing the composition of the roll packaging body as described in the following table, the roll packaging body is obtained in the same manner as in Example 1.

(Evaluation) (1) Measurement of distance and angle In the obtained roll package, measure the following distance (size) and angle, and find the following C.

A: Distance from the second position P2 to the first surface of the pallet base (cm) B: Distance from the first position P1 to the second position P2 (cm) D: Distance from the first position P1 to the first surface of the pallet base (cm) E: Distance from the third position P3 to the first surface of the pallet base (cm) θ: Angle formed by the straight line connecting the first position P1 and the second position P2 and the first surface of the pallet base (°)

In addition, the first position P1, the second position P2, and the third position P3 are the following positions.

1st position P1: The position of the outer periphery of the roller where the distance from the outer periphery of the roller to the first surface of the pallet base is the shortest 2nd position P2: The position of the outer periphery of the roller where the distance from the 1st position P1 to the outer periphery of the winding core is the shortest 3rd position P3: The position of the outer periphery of the roller where the distance from the outer periphery of the roller to the first surface of the pallet base is the longest

Based on the measurement results, the value of C represented by the following formula (C) is calculated. When the value of C is 0, it means that the roller is in contact with the pallet base.

[Number 5]

(2) Stability of the roll package The roll package obtained by lifting is evaluated for stability according to the following criteria. The angle θ in the following evaluation criteria refers to the angle formed by the straight line connecting the first position P1 and the second position P2 and the first surface of the pallet base.

<Evaluation criteria for the stability of the roll package> ○: The angle θ after transporting by lift is less than 10° △: The angle θ after transporting by lift is more than 10° and less than 20° ×: The angle θ after transporting by lift is more than 20°

(3) Wrinkles in the intermediate film Visually inspect the intermediate film in the roll package to check whether wrinkles are present in the intermediate film. Also, remove the winding core and the intermediate film roll from the roll package, and unwind the intermediate film from the winding core. Check whether the intermediate film is unwound from the winding core well. Evaluate the wrinkles in the intermediate film according to the following criteria.

<Evaluation criteria for wrinkles in the middle film> ○: No wrinkles were found in the middle film, and the middle film could be rolled out from the winding core well △: Although some wrinkles were found in the middle film, the middle film could be rolled out from the winding core well ×: Wrinkles were clearly seen in the middle film, and the middle film could not be rolled out from the winding core well

(4) Optical deformation of laminated glass The laminated glass is produced using the interlayer film rolled out in the above-mentioned "(3) Wrinkles of interlayer film". Specifically, the laminated glass is produced according to the following steps.

Preparation of laminated glass: The obtained interlayer film is sandwiched between two sheets of 2.5 mm thick transparent glass (300 mm in length and 300 mm in width) according to JIS R3202:1996 to obtain a laminate. The obtained laminate is placed in a rubber bag and degassed at a vacuum of 2.6 kPa for 20 minutes. It is then transferred to an oven while being degassed and vacuum-pressed at 90°C for 30 minutes to pre-press the laminate. The pre-pressed laminate is pressed for 20 minutes in an autoclave at 135°C and a pressure of 1.2 MPa to obtain a laminated glass.

Measurement of optical distortion: The obtained laminated glass was placed under a fluorescent lamp to visually check for distortion. Also, the obtained laminated glass was placed 3 m away from a strong light source projector, and the angle between the main surface of the laminated glass and the light beam irradiated from the strong light source projector was 20°. Also, a projection screen was placed 1.5 m behind the laminated glass. Light was irradiated from the strong light source projector, and the distortion of the projected image projected on the projection screen was visually observed.

The optical distortion of laminated glass was evaluated according to the following criteria.

<Evaluation criteria for optical deformation of laminated glass> ○: No deformation was found under both strong light sources and fluorescent lights △: Slight optical deformation was found under strong light sources, but no deformation was found under fluorescent lights ×: Deformation was found under both strong light sources and fluorescent lights

The compositions and results are shown in Tables 1 to 4 below.

[Table 1] Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Pallet base Type (1) (2) (3) (4) Pallet base body Material - Iron Iron Iron Made of PP Keep components high cm 4.6 3.0 4.6 4.6 Outer diameter cm 14.75 14.75 13.86 14.75 Buffer material Material - Foam PP Foam PP Foam PP Foam PP thickness mm 15 15 15 15 Roll core Material - Made of PP Made of PP Made of PP Made of PP Intermediate membrane roll Types of interlayers (1) (1) (1) (1) Thickness of intermediate film - Uneven Uneven Uneven Uneven Distance from the first position P1 to the second position P2 (B) cm 11.35 11.35 11.35 11.35 Minimum value of the roller diameter (= (B×2) + outer diameter of the winding core) cm 38.5 38.5 38.5 38.5 Distance from the second position P2 to the first surface of the pallet base (A) cm 3 3 3 3 Angle (θ) formed by the straight line connecting the first position P1 and the second position P2 and the first surface of the pallet base ° 2 10 12 2 C＝((A/sinθ)－B)) cm 74.6 5.9 3.1 74.6 Sufficiency of (1) or (2) - Composition(1) Composition(1) Composition(1) Composition(1) Distance from the third position P3 to the first surface of the pallet base (E) cm 3.9 7.7 8.6 3.9 Distance from the first position P1 to the first surface of the pallet base (D) cm 2.6 1.0 0.6 2.6 The absolute value of the difference between (D) and (E) cm 1.3 6.7 8.0 1.3 The ratio of the absolute value of the difference between the outer diameter of the retaining member and the inner diameter of the opening end of the winding core to the outer diameter of the retaining member % 4.2 4.2 10.0 4.2 evaluate Stability of the roll package ○ △ △ ○ Wrinkles of the middle membrane ○ ○ ○ ○ Optical deformation of laminated glass ○ ○ ○ ○

[Table 2] Embodiment 5 Embodiment 6 Embodiment 7 Embodiment 8 Pallet base Type (1) (1) (1) (5) Pallet base body Material - Iron Iron Iron Iron Keep components high cm 4.6 4.6 4.6 4.6 Outer diameter cm 14.75 14.75 14.75 14.75 Buffer material Material - Foam PP Foam PP Foam PP - thickness mm 15 15 15 - Roll core Material - Made of PP Made of PP Made of PP Made of PP Intermediate membrane roll Types of interlayers (2) (1) (1) (1) Thickness of intermediate film - Uniform Uneven Uneven Uneven Distance from the first position P1 to the second position P2 (B) cm 28.60 20.30 20.30 20.30 Minimum value of the roller diameter (= (B×2) + outer diameter of the winding core) cm 73 56.4 56.4 56.4 Distance from the second position P2 to the first surface of the pallet base (A) cm 3 3 1 3 Angle (θ) formed by the straight line connecting the first position P1 and the second position P2 and the first surface of the pallet base ° 2 2 2 2 C＝((A/sinθ)－B)) cm 57.4 65.7 8.4 65.7 Sufficiency of (1) or (2) - Composition(1) Composition(1) Composition(1) Composition(1) Distance from the third position P3 to the first surface of the pallet base (E) cm 4.5 4.3 2.3 4.3 Distance from the first position P1 to the first surface of the pallet base (D) cm 2.0 2.3 0.3 2.3 The absolute value of the difference between (D) and (E) cm 2.5 2.0 2.0 2.0 The ratio of the absolute value of the difference between the outer diameter of the retaining member and the inner diameter of the opening end of the winding core to the outer diameter of the retaining member % 4.2 4.2 4.2 4.2 evaluate Stability of the roll package ○ ○ ○ ○ Wrinkles of the middle membrane ○ ○ ○ ○ Optical deformation of laminated glass ○ ○ ○ ○

[Table 3] Embodiment 9 Embodiment 10 Embodiment 11 Embodiment 12 Pallet base Type (1) (2) (3) (1) Pallet base body Material - Iron Iron Iron Iron Keep components high cm 4.6 3.0 4.6 4.6 Outer diameter cm 14.75 14.75 13.86 14.75 Buffer material Material - Foam PP Foam PP Foam PP Foam PP thickness mm 15 15 15 15 Roll core Material - Made of PP Made of PP Made of PP Made of PP Intermediate membrane roll Types of interlayers (1) (1) (1) (2) Thickness of intermediate film - Uneven Uneven Uneven Uniform Distance from the first position P1 to the second position P2 (B) cm 20.30 20.30 20.30 28.60 Minimum value of the roller diameter (= (B×2) + outer diameter of the winding core) cm 56.4 56.4 56.4 73 Distance from the second position P2 to the first surface of the pallet base (A) cm 3 3 3 3 Angle (θ) formed by the straight line connecting the first position P1 and the second position P2 and the first surface of the pallet base ° 9 10 10 7 C＝((A/sinθ)－B)) cm 0 0 0 0 Sufficiency of (1) or (2) - Composition (2) Composition (2) Composition (2) Composition (2) Distance from the third position P3 to the first surface of the pallet base (E) cm 8.2 8.2 8.2 7.6 Distance from the first position P1 to the first surface of the pallet base (D) cm 0.0 0.0 0.0 0.0 The absolute value of the difference between (D) and (E) cm 8.2 8.2 8.2 7.6 The ratio of the absolute value of the difference between the outer diameter of the retaining member and the inner diameter of the opening end of the winding core to the outer diameter of the retaining member % 4.2 4.2 10.0 4.2 evaluate Stability of the roll package ○ △ △ ○ Wrinkles of the middle membrane △ △ △ △ Optical deformation of laminated glass ○ ○ ○ ○

[Table 4] Embodiment 13 Embodiment 14 Comparison Example 1 Comparison Example 2 Comparison Example 3 Pallet base Type (6) (7) (X1) (X2) (X3) Pallet base body Material - Iron Iron Iron Iron Iron Keep components high cm 4.6 4.6 4.6 1.0 - Outer diameter cm 14.75 14.75 11.55 14.75 - Buffer material Material - Foam PP Cardboard - - Foam PP thickness mm 10 10 - - 15 Roll core Material - Made of PP Made of PP Made of PP Made of PP Made of PP Intermediate membrane roll Types of interlayers (1) (1) (1) (1) (2) Thickness of intermediate film - Uneven Uneven Uneven Uneven Uniform Distance from the first position P1 to the second position P2 (B) cm 28.60 28.60 20.30 11.35 28.60 Minimum value of the roller diameter (= (B×2) + outer diameter of the winding core) cm 73 73 56.4 38.5 73 Distance from the second position P2 to the first surface of the pallet base (A) cm 3 3 3 3 3 Angle (θ) formed by the straight line connecting the first position P1 and the second position P2 and the first surface of the pallet base ° 7 7 10 15 10 C＝((A/sinθ)－B)) cm 0 0 0 0 0 Sufficiency of (1) or (2) - Composition (2) Composition (2) - - - Distance from the third position P3 to the first surface of the pallet base (E) cm 7.6 7.6 8.2 9.8 7.6 Distance from the first position P1 to the first surface of the pallet base (D) cm 0.0 0.0 0.0 0.0 0.0 The absolute value of the difference between (D) and (E) cm 7.6 7.6 8.2 9.8 7.6 The ratio of the absolute value of the difference between the outer diameter of the retaining member and the inner diameter of the opening end of the winding core to the outer diameter of the retaining member % 4.2 4.2 25.0 4.2 - evaluate Stability of the roll package ○ ○ △ △ × Wrinkles of the middle membrane △ △ × × × Optical deformation of laminated glass ○ ○ × × ×

1: Pallet base 1A: Pallet base 1a: 1st surface 1Aa: 1st surface 1b: 2nd surface 1Ab: 2nd surface 2: Roll core 3: Roller (roller of intermediate film) 4: Roller protection cover 5: Top plate member 6: Support member 11: Pallet base body 12: Retaining member 12a: Opening 13: Buffer material 51: Top plate member body 52: Retaining member 90: Roll packing body 90A: Roll packing body 90B: Roll packing body A: Distance from the 2nd position to the 1st surface of the pallet base B: Distance from the 1st position to the 2nd position C: Distance from the 1st position to the 4th position D: Distance from the 1st position to the 1st surface of the pallet base E: Distance from the 3rd position to the 1st surface of the pallet base P1: 1st position P2: 2nd position P3: 3rd position P4: 4th position θ: Angle formed by the straight line connecting the 1st position and the 2nd position and the 1st surface of the pallet base

FIG. 1 is a front view of a roll-wrapped body of the first embodiment of the present invention. FIG. 2 (a) and (b) are a top view and a cross-sectional view of the first example of a pallet base that can be used in the present invention, respectively. FIG. 3 is a view for explaining a specific distance or a specific angle in the roll-wrapped body of the first embodiment of the present invention. FIG. 4 is a front view of a roll-wrapped body of the second embodiment of the present invention. FIG. 5 (a) and (b) are a top view and a cross-sectional view of the second example of a pallet base that can be used in the present invention, respectively. FIG. 6 is a view for explaining a specific distance or a specific angle in the roll-wrapped body of the second embodiment of the present invention. FIG. 7 is a front view of a roll-wrapped body of the third embodiment of the present invention.

1: Pallet base

1a: Surface 1

1b: Surface 2

2: Roll core

3: Roller (roller of the middle membrane)

4: Roller protection cover

5: Top plate components

6: Support components

11: Pallet base body

12: Maintain components

51: Top plate component body

52: Retaining components

90: Roll package body

Claims (14)

A roll packaging body comprises: a pallet base having a first surface, a winding core, and a roll body of an intermediate film for laminated glass wound into a roll shape on the outer circumference of the winding core, the pallet base having a pallet base body and a retaining member for retaining the winding core, the retaining member of the pallet base having a portion protruding upward on the first surface side of the pallet base, the winding core being retained by the retaining member of the pallet base, the roll packaging body having the following structure (1) or the following structure (2): Configuration (1): When the position of the outer periphery of the roller at which the distance from the outer periphery of the roller to the first surface of the pallet base is the shortest is set as the first position, the position of the outer periphery of the winding core at which the distance from the first position to the outer periphery of the winding core is the shortest is set as the second position, the distance from the second position to the first surface of the pallet base is set as A, the distance from the first position to the second position is set as B, and the angle formed by the straight line connecting the first position and the second position and the first surface of the pallet base is set as θ, C represented by the following formula (C) exceeds 0, [Number 1] Configuration (2): The above-mentioned pallet base has the above-mentioned pallet base body, the above-mentioned retaining member, and the buffer material, the upper surface of the above-mentioned buffer material is the above-mentioned first surface of the above-mentioned pallet base, and the upper surface of the above-mentioned buffer material is in contact with the above-mentioned roller. The roll packaging body of claim 1 has the above-mentioned structure (1). A roll package as claimed in claim 2, wherein the angle θ exceeds 0° and is less than 14.8°. A roll package as claimed in claim 2 or 3, wherein the above-mentioned A exceeds 0 cm and is less than 3 cm. A roll packaging body as claimed in claim 2 or 3, wherein the absolute value of the difference between the outer diameter of the above-mentioned retaining member and the inner diameter of the open end of the winding core is greater than 0% and less than 20% relative to the outer diameter of the above-mentioned retaining member, and the height of the above-mentioned retaining member is greater than 3 cm and less than 10 cm. For the roll package of claim 2 or 3, wherein the above-mentioned B is not less than 11.32 cm and not more than 28.57 cm. For the roll packaging body of claim 2 or 3, when the position of the outer periphery of the above-mentioned roller body where the distance from the outer periphery of the above-mentioned roller body to the above-mentioned first surface of the above-mentioned pallet base is the longest is set as the third position, the distance from the above-mentioned first position to the above-mentioned first surface of the above-mentioned pallet base is set as D, and the distance from the above-mentioned third position to the above-mentioned first surface of the above-mentioned pallet base is set as E, the absolute value of the difference between the above-mentioned D and the above-mentioned E is less than 9.8 cm. A roll packaging body as claimed in claim 2 or 3, wherein the pallet base comprises the pallet base body, the retaining member, and a buffer material, and the upper surface of the buffer material is the first surface of the pallet base. As in claim 8, the above-mentioned buffer material is a polypropylene sheet, a foamed polypropylene sheet, a polycarbonate sheet, a plastic corrugated board, an environmentally friendly plastic sheet, or a paper sheet. The roll packaging body of claim 1 has the above-mentioned structure (2). As in claim 10, the above-mentioned buffer material is a polypropylene sheet, a foamed polypropylene sheet, a polycarbonate sheet, a plastic corrugated board, an environmentally friendly plastic sheet, or a paper sheet. A roll package as claimed in claim 2 or 10, wherein the intermediate film for laminated glass has a non-uniform thickness in the width direction of the intermediate film for laminated glass. A roll package as claimed in claim 2 or 10, wherein the pallet base body comprises iron, resin, stainless steel, aluminum, wood, or cardboard. A roll bale body as claimed in claim 2 or 10, wherein the winding core comprises polypropylene, polyethylene, polyvinyl chloride, paper, glass, cloth, wood, or fiber-reinforced plastic.