CN112706473B - Random-direction stretching non-woven fabric production device and random-direction stretching non-woven fabric - Google Patents
Random-direction stretching non-woven fabric production device and random-direction stretching non-woven fabric Download PDFInfo
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- CN112706473B CN112706473B CN202011559230.3A CN202011559230A CN112706473B CN 112706473 B CN112706473 B CN 112706473B CN 202011559230 A CN202011559230 A CN 202011559230A CN 112706473 B CN112706473 B CN 112706473B
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- 239000004745 nonwoven fabric Substances 0.000 title claims abstract description 99
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 18
- 238000007373 indentation Methods 0.000 claims description 67
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 239000012528 membrane Substances 0.000 claims description 12
- 238000001125 extrusion Methods 0.000 claims description 9
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 3
- 230000013011 mating Effects 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/10—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1866—Handling of layers or the laminate conforming the layers or laminate to a convex or concave profile
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
- B32B5/26—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer another layer next to it also being fibrous or filamentary
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Absorbent Articles And Supports Therefor (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a device for producing a non-woven fabric stretched in any direction, which belongs to the field of non-woven fabric production and solves the problem that a stretchable composite sheet in the prior art does not have excellent elasticity in any direction. The invention is mainly used for producing the random-direction stretching non-woven fabric. The invention also provides the non-woven fabric stretched in any direction.
Description
Technical Field
The invention relates to the field of non-woven fabric production, in particular to a random-direction stretching non-woven fabric production device and a random-direction stretching non-woven fabric produced by the same.
Background
In the prior art, in order to obtain a nonwoven fabric composite sheet having elasticity in a plurality of directions, a nonwoven fabric having excellent elasticity in the width direction (the direction perpendicular to the flow direction and the thickness direction) is laminated and joined with an elastic sheet, and then a stretchable composite sheet having excellent elasticity in both the width direction and the flow direction is manufactured, for example, in patent application 201980010818.2. However, such a composite sheet is not only required to have elasticity in the direction of the nonwoven fabric used, but also to have no excellent elasticity in any direction.
Disclosure of Invention
The invention aims to provide a device for producing random-direction stretch non-woven fabric, which can produce random-direction stretch non-woven fabric.
In order to achieve the purpose, the invention adopts the following technical scheme: the production device comprises a rack, a first matching roller, a first indentation forming roller and a pressing roller, wherein the first matching roller, the first indentation forming roller and the pressing roller are arranged on the rack and mutually extrude, the pressing roller and the first indentation forming roller mutually extrude to form an extrusion bonding gap for basic non-woven fabrics and elastic films to pass through, the peripheral side surface of the first indentation forming roller is provided with first forming bulges, the first forming bulges are in a circular table shape, the first forming bulges are distributed in the axial direction of the first indentation forming roller at equal intervals and in the circumferential direction of the first indentation forming roller at equal intervals, the axial intervals of the first forming bulges are equal to the axial intervals of the first forming bulges in the circumferential direction of the first indentation forming roller, the peripheral side surface of the first matching roller is provided with circular first matching grooves, the first matching grooves correspond to the first forming bulges one by one, the first matching grooves and the first forming bulges mutually extrude to enable the basic non-woven fabrics to be tensioned at the periphery of the upper first indentation forming roller, the part, which is tightly attached to the first forming bulges, the basic non-woven fabrics are distributed between the top end surfaces of the first forming rollers, and the first forming bulges, and the top end of the elastic films are uniformly bonded with the top end of the first forming pressing bonding bulges, and the flat forming surface.
Further, the top end face of the first forming protrusion is a plane perpendicular to the axial direction of the first forming protrusion.
Further, the top end face of the first forming protrusion is an arc face parallel to the outer peripheral side face of the first indentation forming roller.
Further, the pressing roller is a smooth roller.
Furthermore, the press-fit roller is replaced by a second indentation forming roller, a second forming protrusion is arranged on the peripheral side face of the second indentation forming roller, the second forming protrusion is in a round table shape, a second matching roller is arranged on one side of the second indentation forming roller, a circular second matching groove is arranged on the peripheral side face of the second matching roller, the second matching groove corresponds to the second forming protrusion one by one, the second matching groove and the second forming protrusion extrude with each other to enable the base non-woven fabric to be tensioned on the periphery of the second indentation forming roller, a part of the base non-woven fabric, which is tightly attached to the top end face of the second forming protrusion, forms a leveling part, a part of the base non-woven fabric, which is located between the adjacent second forming protrusions, forms uniformly distributed natural bulges, and extrusion bonding gaps are formed between the top end faces of the second forming protrusion and the top end faces of the first forming protrusion one by one to one, so that the leveling parts on the two layers of the base non-woven fabric are bonded with the two sides of the elastic film respectively.
Further, the top end face of the second forming protrusion is a plane perpendicular to the axial direction of the second forming protrusion.
Further, the top end face of the second forming protrusion is an arc face parallel to the outer peripheral side face of the first indentation forming roller.
Further, the shape and the size of the top end face of the second forming protrusion are the same as those of the top end face of the first forming protrusion.
The invention also provides an arbitrary-direction stretching non-woven fabric which comprises a basic non-woven fabric and an elastic film, wherein the basic non-woven fabric is extruded with the first indentation forming roller through the first matching roller of the arbitrary-direction stretching non-woven fabric production device to form a structure with a flat part and uniformly distributed natural bulges, and the flat part and the elastic film are extruded and bonded with the first indentation forming roller through the smooth surface roller.
The invention also provides an arbitrarily-stretched non-woven fabric which comprises two layers of basic non-woven fabrics and an elastic membrane, wherein one layer of basic non-woven fabric is extruded by a first matching roller and a first indentation forming roller of the arbitrarily-stretched non-woven fabric production device to form a structure with a flat part and natural bulges, the other layer of basic non-woven fabric is extruded by a second matching roller and a second indentation forming roller of the arbitrarily-stretched non-woven fabric production device to form a structure with a flat part and uniformly-distributed natural bulges, and the flat parts of the two layers of basic non-woven fabrics are respectively extruded and bonded with two sides of the elastic membrane by the first indentation forming roller and the second indentation forming roller.
After the technical scheme is adopted, the invention has the following advantages: the non-woven fabric is extruded by matching the first forming bulges in the shape of a circular truncated cone with the first matching grooves in the circular shape, the non-woven fabric is stretched and deformed along the circumference of the first forming bulges after being extruded, so that uniform acting force is generated on the parts, positioned between the adjacent first forming bulges, of the non-woven fabric, after the first matching grooves are separated from the first forming bulges, the non-woven fabric is tensioned on the periphery of the first indentation forming rollers and is tensioned on the first forming bulges actually, the parts, positioned between the adjacent first forming bulges, of the non-woven fabric lose the extruding acting force of the first matching grooves and are in a recovery trend, but the non-woven fabric cannot be completely recovered to a flat state under the influence of the tensioning of the flat parts on the first forming bulges, the first forming bulges are distributed at equal intervals in the axial direction of the first indentation forming rollers and distributed at equal intervals in the circumferential direction of the first indentation forming rollers, the first forming bulges are distributed at equal intervals in the axial direction of the first forming rollers, so that the parts, positioned between the adjacent first forming bulges, can be recovered to the elastic parts which are distributed at the same in the circumferential direction of the first indentation forming rollers, and the elastic film can be bonded with the elastic film, and the elastic film, so that the elastic film can be bonded in any elastic coating direction, and the elastic film without being bonded by the elastic film. The leveling part has a certain area, so that the non-woven fabric and the elastic membrane are bonded more firmly, and the product quality is better.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic view of an apparatus for producing a random direction stretch nonwoven fabric according to an embodiment of the present invention;
FIG. 2 is an enlarged view taken at I in FIG. 1;
FIG. 3 is a schematic view of a first indentation forming roll according to a first embodiment of the invention;
FIG. 4 is an enlarged view at III of FIG. 3;
FIG. 5 is an enlarged view taken at II in FIG. 1;
FIG. 6 is a schematic view of an apparatus for producing a random direction stretch nonwoven fabric according to a second embodiment of the present invention;
fig. 7 is an enlarged view at IV in fig. 6.
Detailed Description
The first embodiment is as follows:
as shown in fig. 1 to 5, the present invention provides an arbitrary direction stretching non-woven fabric production apparatus, comprising a frame, and a first matching roller 1, a first indentation forming roller 2 and a pressing roller 3 arranged on the frame, wherein the first matching roller 1 and the first indentation forming roller 2 are pressed against each other, the pressing roller 3 and the first indentation forming roller 2 are pressed against each other to form a pressing and bonding gap for the base non-woven fabric 91 and the elastic film 92 to pass through, a first forming protrusion 21 is arranged on an outer peripheral side surface of the first indentation forming roller 2, the first forming protrusion 21 is in a circular truncated cone shape, the first forming protrusions 21 are distributed at equal intervals in an axial direction of the first indentation forming roller 2 and are distributed at equal intervals in a circumferential direction of the first indentation forming roller 2, an interval of the first forming protrusion in the axial direction of the first indentation forming roller is equal to an interval of the first forming protrusion in the circumferential direction of the first indentation forming roller, the circular first matching grooves 11 are formed in the side face of the periphery of the first matching roller 1, the first matching grooves 11 correspond to the first forming protrusions 21 one by one, the first matching grooves 11 and the first forming protrusions 21 are pressed mutually to enable the base non-woven fabric to be tensioned on the periphery of the upper first indentation forming roller 2, the flat parts 911 are formed on the base non-woven fabric and close to the top end faces of the first forming protrusions 21, the natural bulges 912 which are uniformly distributed are formed on the base non-woven fabric and located between the adjacent first forming protrusions 21, the extrusion bonding gaps are located between the top end faces of the first forming protrusions 21 and the pressing roller 3, and the flat parts 911 are bonded with the elastic membrane to form a finished product of the non-woven fabric 9 which can be stretched in any direction.
The invention extrudes the base non-woven fabric through the matching of the first forming bulge 21 in the shape of the circular truncated cone and the first matching groove 11, the base non-woven fabric is stretched and deformed along the circumference of the first forming bulge 21 after being extruded, thereby generating a uniform force to the portions of the base nonwoven fabric located between the adjacent first forming protrusions 21, after the first matching groove 11 is separated from the first forming protrusion 21, the base non-woven fabric is tensioned on the outer circumference of the upper first indentation forming roller 2, in fact on the first forming protrusion 21, and the portions of the base nonwoven fabric located between the adjacent first molding protrusions 21 lose the pressing force of the first fitting grooves 11 and tend to recover, but is affected by the tightening of the flat portion 911 on the first molding projection 21, cannot be completely restored to the flat state, since the first forming protuberances 21 are equally spaced in the axial direction of the first indentation forming roller 2 and equally spaced in the circumferential direction of the first indentation forming roller 2, the spacing of the first forming protuberances in the axial direction of the first indentation forming roller is equal to the spacing of the first forming protuberances in the circumferential direction of the first indentation forming roller, therefore, the portion of the base nonwoven fabric located between the adjacent first forming protrusions 21 can be restored to the natural bulges 912 uniformly distributed with respect to the tensioned flat portion 911, and the flat portion 911 is bonded to the elastic film, so that a gap is reserved between the natural bump 912 and the elastic film, after the finished product of the random-direction stretching non-woven fabric 9 obtained after bonding is stretched in any direction, the natural bump 912 can be deformed to a flat state, the non-woven fabric can be stretched regardless of its own elastic direction, thereby not affecting the elastic deformation of the elastic membrane in any direction, and therefore, the elasticity of the elastic membrane can be utilized to obtain good elastic effect. The leveling part has a certain area, so that the non-woven fabric and the elastic membrane are bonded more firmly, and the product quality is better.
Since the first forming protrusion 21 has a small size, the top end surface 211 of the first forming protrusion 21 may be selected to be a plane perpendicular to the axial direction thereof or a plane close thereto, as long as the processing is convenient and the adhesion effect is ensured. In addition, the top end surface of the first forming protrusion 21 may also be selected to be a cambered surface parallel to the outer peripheral side surface of the first indentation forming roller 2, so that the force applied to the flat part and the elastic membrane is more uniform when the first indentation forming roller 2 and the pressing roller 3 rotate and extrude.
In this embodiment, a base nonwoven is used to bond the elastic film, so that the nip roller 3 is selected to be a smooth roller.
Example two:
as shown in fig. 6, the difference between this embodiment and the first embodiment is that the stitching roller is replaced by a second indentation forming roller 4, the side surface of the outer periphery of the second indentation forming roller 4 is provided with a second forming protrusion 41, the second forming protrusion 41 is in a circular truncated cone shape, one side of the second indentation forming roller 4 is provided with a second matching roller 5, the side surface of the outer periphery of the second matching roller 5 is provided with a second matching groove, the second matching groove and the second forming protrusion 41 are in one-to-one correspondence, the second matching groove and the second forming protrusion 41 are pressed against each other to tension the base nonwoven fabric on the outer periphery of the upper second indentation forming roller 4, a part of the base nonwoven fabric 91, which is close to the top end surface of the second forming protrusion 41, forms a flat part 911, a part between adjacent second forming protrusions 41 on the base nonwoven fabric, forms a natural bulge 912 which is uniformly distributed, the top end surfaces of the second forming protrusions 41 and the top end surfaces of the first forming protrusions 21 are in one-to-form a pressing bonding gap, so that the flat parts on the base nonwoven fabric are bonded to the two flat sides of the elastic film, respectively, and the two flat nonwoven fabrics 911 on the elastic film, and the finished product is stretched at will be bonded to the two flat nonwoven fabrics 9 of the elastic film.
Similarly to the first forming protrusion 21, the tip end surface of the second forming protrusion 41 may be a plane perpendicular to the axial direction thereof, or alternatively, the tip end surface of the second forming protrusion 41 may be an arc surface parallel to the outer peripheral side surface of the first indentation forming roller 2.
In order to secure the effect of the press-bonding, the tip end surface of the second forming protrusion 41 and the tip end surface of the first forming protrusion 21 have the same shape and size, and the two base nonwoven fabrics may not be differentiated into the front and back surfaces.
Other contents not described in this embodiment may refer to embodiment one.
Example three:
as shown in fig. 1 and 5, the present invention further provides an arbitrary direction stretch nonwoven 9, which comprises a base nonwoven 91 and an elastic film 92, wherein the base nonwoven 91 is pressed against the first indentation forming roller 2 by the first matching roller 1 of the arbitrary direction stretch nonwoven production apparatus according to the first embodiment to form a structure having a flat portion 911 and uniformly distributed natural bulges 912, and the flat portion 911 and the elastic film 92 are pressed against the first indentation forming roller by the smooth surface roller. The randomly stretched nonwoven fabric 9 of the present embodiment can obtain uniform and good elasticity in any direction.
Other contents not described in this embodiment may refer to embodiment one.
Example four:
as shown in fig. 6 and 7, the present invention further provides an arbitrarily oriented stretch nonwoven fabric comprising two layers of base nonwoven fabrics 91 and an elastic film 92, wherein the base nonwoven fabric 91 is pressed by a first mating roll and a first creasing roller of the arbitrarily oriented stretch nonwoven fabric manufacturing apparatus according to the second embodiment to form a structure having a flat portion 911 and natural bulges 912, the base nonwoven fabric 91 is pressed by a second mating roll and a second creasing roller of the arbitrarily oriented stretch nonwoven fabric manufacturing apparatus according to the second embodiment to form a structure having a flat portion 911 and uniformly distributed natural bulges 912, and the flat portions of the two layers of base nonwoven fabrics 91 are respectively pressed and bonded to both sides of the elastic film 92 by the first creasing roller and the second creasing roller. The randomly stretched nonwoven fabric 9 of the present embodiment can obtain uniform and good elasticity in any direction.
The second embodiment can be referred to for other contents not described in this embodiment.
In addition to the preferred embodiments described above, the present invention has other embodiments, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope of the present invention defined by the claims.
Claims (10)
1. The production device is characterized in that first forming bulges are arranged on the side surface of the periphery of the first indentation forming roller, the first forming bulges are distributed in the axial direction of the first indentation forming roller at equal intervals and distributed in the circumferential direction of the first indentation forming roller at equal intervals, the distance between the first forming bulges in the axial direction of the first indentation forming roller is equal to the distance between the first forming bulges in the circumferential direction of the first indentation forming roller, first circular matching grooves are arranged on the side surface of the periphery of the first matching roller, the first matching grooves are in one-to-one correspondence with the first forming bulges, the first matching grooves and the first forming bulges are mutually extruded to enable the base non-woven fabric to be tightly tensioned on the periphery of the first indentation forming roller, the top end of the first forming bulges on the base non-woven fabric is tightly attached to the periphery of the first indentation forming roller, the upper part of the top end surface of the base non-woven fabric, upper part of the base non-woven fabric is formed, the upper part of the base non-woven fabric is uniformly distributed between the first matching grooves and the first forming bulges, and the top end of the first pressing roller is uniformly distributed with the elastic forming bulges, and the top end of the first forming rollers, and the elastic film is adhered to form a natural pressing bonding gap between the first forming bulges.
2. The random direction stretch nonwoven fabric production apparatus according to claim 1, wherein the apex end face of the first forming projection is a plane perpendicular to the axial direction thereof.
3. The random direction stretch nonwoven fabric production apparatus according to claim 1, wherein the apex surface of the first forming projection is an arc surface parallel to the outer peripheral side surface of the first indentation forming roll.
4. The apparatus according to claim 1, wherein the nip roller is a smooth roller.
5. The device for producing random-direction stretching non-woven fabric according to claim 1, wherein the press-fit roller is replaced by a second indentation forming roller, the peripheral side surface of the second indentation forming roller is provided with a second forming protrusion, the second forming protrusion is in a circular truncated cone shape, one side of the second indentation forming roller is provided with a second matching roller, the peripheral side surface of the second matching roller is provided with a second circular matching groove, the second matching grooves correspond to the second forming protrusions one to one, the second matching grooves and the second forming protrusions are mutually extruded to enable the base non-woven fabric to be tensioned on the periphery of the upper second indentation forming roller, a part of the base non-woven fabric, which is tightly attached to the top end surface of the second forming protrusion, forms flat parts, a part of the base non-woven fabric, which is located between the adjacent second forming protrusions, forms uniformly-distributed natural bulges, and the top end surfaces of the second forming protrusions correspond to the top end surfaces of the first forming protrusions one to form extrusion bonding gaps, so that the flat parts on the base of the two layers of non-woven fabric are respectively bonded to two sides of the elastic film.
6. The random-orientation stretch nonwoven fabric production apparatus according to claim 5, wherein the tip end surface of the second forming protrusion is a plane perpendicular to the axial direction thereof.
7. The random direction stretching nonwoven fabric production apparatus according to claim 5, wherein the tip end surface of the second forming projection is an arc surface parallel to the outer peripheral side surface of the first indentation forming roll.
8. The apparatus according to claim 5, wherein the second forming projections have tip end surfaces of the same shape and size as those of the first forming projections.
9. An arbitrary tensile non-woven fabrics, includes basic non-woven fabrics and elastic membrane, its characterized in that, the basic non-woven fabrics passes through the arbitrary first cooperation roller and the first indentation forming roll extrusion of tensile non-woven fabrics apparatus for producing of claim 4 and forms the structure that has flattening portion and evenly distributed's natural bulge, flattening portion and elastic membrane pass through plain surface roller and first indentation forming roll extrusion bonding.
10. The utility model provides an arbitrary tensile non-woven fabrics, includes two-layer basis non-woven fabrics and elastic membrane, its characterized in that, wherein one deck basis non-woven fabrics passes through claim 5 arbitrary to tensile non-woven fabrics apparatus for producing's first cooperation roller and first indentation forming roll extrusion formation have the structure of flattening and natural swell, the other deck basis non-woven fabrics passes through claim 5 arbitrary to tensile non-woven fabrics apparatus for producing's second cooperation roller and the extrusion of second indentation forming roll form the structure of having flattening and evenly distributed's natural swell, the flattening of two-layer basis non-woven fabrics is respectively through first indentation forming roll and second indentation forming roll extrusion bonding with the both sides of elastic membrane.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011559230.3A CN112706473B (en) | 2020-12-25 | 2020-12-25 | Random-direction stretching non-woven fabric production device and random-direction stretching non-woven fabric |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011559230.3A CN112706473B (en) | 2020-12-25 | 2020-12-25 | Random-direction stretching non-woven fabric production device and random-direction stretching non-woven fabric |
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| CN112706473B true CN112706473B (en) | 2023-04-07 |
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| CN202378328U (en) * | 2011-12-22 | 2012-08-15 | 金红叶纸业集团有限公司 | Embossing roller and embossed paper applying embossing roller |
| CN106344270B (en) * | 2016-09-20 | 2022-07-29 | 杨明达 | Elastic breathable arc-shaped crepe type composite non-woven fabric production line and manufacturing method |
| CN109732950B (en) * | 2019-01-28 | 2020-12-01 | 莱州市精诚橡胶有限公司 | Salient point compression roller device |
| CN111844932B (en) * | 2020-07-09 | 2022-11-01 | 浙江科达包装机械厂 | High elasticity non-woven fabrics and production line thereof |
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