JP2007021029A - mask - Google Patents

Abstract

[PROBLEMS] To improve stretchability in a portion using a sheet-like material such as a nonwoven fabric.
A body portion 2 that covers a nasal cavity and a mouth, and a locking portion 3 for locking the body portion 2 to the body, the locking portion 3 being a sheet-like material S and a sheet-like material. The mask 1 includes an elastic member G that is fixed in an expanded state with respect to S, and a ridge W that is formed when the sheet-like material S contracts as the elastic member G contracts.
[Selection] Figure 1

Description

  The present invention relates to a mask that covers a target portion of a face such as a mouthpiece or a nostril.

  Conventionally, a mask in which a plurality of gauze is formed into a rectangular shape and rubber bands for ear hooks are attached in an annular shape on both right and left sides has been widely used.

  In addition, for disposable use, a ring-shaped rubber strap attached to the left and right sides of the cup-shaped main body or a foamed urethane sheet formed in a rectangular shape or the like is opened on both the left and right sides. The thing provided with the hole has been used.

  In recent years, masks using non-woven fabrics have been developed, and in addition to the flat shape, pleats are formed along the width direction of the flat shape at the beginning, following the swelling of the mouth and nose. A pocket type that deforms (see, for example, Patent Document 1), a left side portion and a right side portion are overlapped and joined by a center line in the width direction, and a space between the left side portion and the right side portion is widened and the portion in between is applied to the mouth or nose. (For example, see Patent Document 2) and the like are provided.

However, the conventional mask has poor stretchability in a portion using a sheet-like material such as a nonwoven fabric.
JP 2003-275332 A JP 7-275384 A

  Then, the main subject of this invention is improving the stretchability in the part using sheet-like materials, such as a nonwoven fabric.

The present invention that has solved the above problems is as follows.
<Invention of Claim 1>
In a mask having a main body part that covers a target portion of the face and a locking part for locking the main body part to the body,
At least a part of the engaging portion is formed by a sheet-like material, an elastic member fixed in an expanded state with respect to the sheet-like material, and the sheet-like material contracting along with elastic contraction of the elastic member. Having a spear,
A mask characterized by that.

(Function and effect)
In this way, by fixing the elastic member in the stretched state with respect to the sheet-like material to form a ridge (also referred to as gather or shearing), even if a sheet-like material is used for the locking portion, it is excellent in elasticity. It becomes a mask with excellent fit and texture.

  In addition, the following secondary effects are also achieved. That is, heat retention is enhanced because a large amount of air can be held between the ridges in the portion having the ridges. And since the ventilation space is formed between the ridges in the portion having ridges, the air permeability in the direction along the ridges is excellent. Therefore, it becomes hard to be stuffy for heat retention.

<Invention of Claim 2>
The mask according to claim 1, wherein the stretch ratio in the portion having the wrinkles is 150 to 350%.

(Function and effect)
It is preferable in terms of stretchability, breathability, and heat retention that the degree of wrinkles is within the range of the stretch rate described in this section. The stretch rate is the ratio of the length in the contraction direction in the stretched state in which the heel is completely stretched and the heel is eliminated to the contraction direction length in the contracted state where no external force is applied to the heel and the heel is not stretched at all. .

<Invention of Claim 3>
The mask according to claim 1, wherein the main body does not have the wrinkles.

(Function and effect)
The hook of the present invention may be formed on at least a part of the locking part. Therefore, the hook may be formed on the entire locking part or the entire mask. As a result, there is a problem that the effect of blocking fine particles such as pollen is reduced or the appearance is not clean. For this reason, it is also preferable that the main body is configured so that no wrinkles are formed as described in this section.

<Invention of Claim 4>
The mask according to claim 1, wherein the elastic member is provided so as to elastically expand and contract along the width direction, and a ridge along the vertical direction is formed.

(Function and effect)
If comprised in this way, high elasticity will be exhibited along the width direction, and high air permeability will be exhibited along the vertical direction. Therefore, it becomes easy to put on the face, and moisture due to breathing or the like is easily removed, so that it is difficult to get stuffy.

<Invention of Claim 5>
The elastic member is a thread-like member having a thickness of 620 dtex or less provided along the width direction, and the thread-like member is provided over substantially the entire length in the longitudinal direction at intervals of 7.0 mm or less. Item 5. The mask according to any one of Items 1 to 4.

(Function and effect)
If thick rubber threads are arranged at wide intervals, a wrinkle with a bad appearance will occur. More specifically, as shown in FIG. 7, wrinkles generated as the rubber thread G contracts occur in a form extending from one to the other of the adjacent rubber threads G, and the uneven wrinkles are repeated in the circumferential direction. Generate in state. Further, the wrinkles between adjacent thread rubbers G and the wrinkles between adjacent ones of the thread rubbers G are generated in an independent tendency without being continuous.

  These ridges have longer ridges or valleys corresponding to the distance between them, and the pitch of the unevenness in the circumferential direction is larger as the arrangement interval between the rubber threads G is larger. Accordingly, since the large wrinkles are randomly generated on the entire outer surface of the product, the outer surface of the product is “moco-moco”. Further, if each thread rubber G is thick and has a large shrinkage force, for example, if one ridge is taken as an example, the valley on the thread rubber G side of the mountain becomes deep, and the existence of the thread rubber G becomes clear. Become. In addition, since the peaks or valleys are large and the contraction force acts strongly, complex gavel is randomly generated in the peaks or valleys.

  On the other hand, in the case of the thickness and the arrangement interval described in this section, as shown in FIG. 8, the generated wrinkles are narrow in the circumferential direction and have a length in the vertical direction (direction orthogonal to the circumferential direction). It is short and is generated in a form in which wrinkles are substantially continuous in the vertical direction. And the concave or convex of each ridge is very small. Moreover, there is almost no constriction at the thread rubber g portion, and it is difficult to determine the presence of the thread rubber g when the color of the sheet constituting the outer surface and the color of the thread rubber g are the same color. As a result, the wrinkles are inconspicuous, and even if they are visible, the wrinkles are fine and have a flat outer surface as a whole. In addition, since there is no local excessive pressure on the skin, there is no generation of rubber marks, and the friction between the inner surface of the product and the skin covers the entire surface, and the fit is improved.

<Invention of Claim 6>
The said latching | locking part is a strip | belt-shaped member which connects the both sides of the said main-body part, It is comprised so that this strip | belt-shaped member may be hung around a head part or a neck part, and may be latched. The mask according to item.

(Function and effect)
Since the locking portion of the present invention is formed of a sheet-like material, it can cover a wide range including the cheeks and ears by being configured as described in this section, and has excellent cold protection It becomes. Since the mask covering the cheeks, ear-mouths and nose is in high demand in the cold season, it is particularly preferable to use the form described in this section.

  As described above, according to the present invention, various advantages are brought about, such as improved stretchability in a portion using a sheet-like material such as a nonwoven fabric.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
(First shape example)
FIG. 1 shows a pocket-type mask 1. The mask 1 includes a main body portion 2 that covers the mouthpiece and the nasal cavity, and a locking portion 3 for locking the main body portion 2 to the body. The main body 2 includes a left portion 2L and a right portion 2R that are symmetric with respect to the center line in the width direction. Both the portions 2L and 2R are formed of a flat material and are joined at the edge 4 on the center side in the width direction. Further, the joint portion 4 has a curved shape in which the intermediate portion bulges outward from both the upper and lower sides.

  On the other hand, the locking portion 3 is an annular flat member having an opening 5 for hanging on the ear, and is joined to the left and right side edges 2e, 2e of the main body portion 2.

  The main body 2 and the locking portion 3 are flat in a non-use state in which the left portion 2L and the right portion 2R are overlapped. On the other hand, the main body 2 has a cup shape in a use state (shown state) in which the space between the left portion 2L and the right portion 2R is widened. In this state, if the wearer's mouth and nasal cavity are covered, the space around the mouth and nasal cavity can be covered.

(Second shape example)
In the first shape example, the main body 2 and the locking portion 3 are formed as separate members and are joined together. However, as shown in FIG. It can also be formed integrally as a member.

(Third shape example)
In addition, although not shown, in the pocket type form, the joining line need not be formed along the vertical direction, and can be formed along the width direction, for example.

(Fourth shape example)
FIG. 3 shows a flat mask 11, which includes a main body 2 that covers the mouthpiece and the nasal cavity, and a locking portion 3 for locking the main body 2 to the body. . The locking portion 3 is a flat member that is formed by extending both side portions of the main body portion 2 while maintaining the height, and has an opening 5 for hanging on the ear. As the shape of the main body 2, an appropriate shape such as an ellipse or a rhombus can be adopted in addition to the rectangular shape shown in the figure.

(Fifth shape example)
The locking portion 3 of the form shown in FIGS. 1 to 3 is a type that hooks the annular member to the ear, but as shown in FIG. 11, the both side portions of the main body portion 2 are band-shaped members as the locking portions 3. It is also possible to adopt a type in which the belt-like member is hooked and locked around the head or neck (not shown). This type of locking portion is disclosed, for example, in JP-A-9-313631.

  As will be described later, since the locking portion 3 of the present invention is formed of a sheet-like material, the locking portion 3 is used as a belt-like member and is hung around the back of the head as in the fifth shape example. Then, it is preferable because it can cover a wide area including the cheeks and ears and is excellent in cold protection.

(Point of the present invention)
In the present invention, at least a part of the locking portion 3 has a sheet-like material S and an elastic member G fixed to the sheet-like material S in an expanded state, as shown in FIGS. It is. In such a portion, the sheet-like material S contracts with the elastic contraction of the elastic member G, whereby a ridge W as shown in FIGS. 7 and 8 is formed.

  As shown in FIG. 5, it is preferable to sandwich the elastic member G between the pair of sheet-like materials S and S in the stretched state and fix them by adhesion or the like in the crease forming portion. However, as shown in FIG. The elastic member G can be fixed to one surface of the sheet material S by bonding or the like in an extended state. Furthermore, another sheet-like material can be laminated on the sheet-like material S to which these elastic members G are fixed to form a laminated structure of three or more layers. Moreover, about parts other than the part which has a wrinkle, it can form by laminating | stacking the sheet-like raw material S one layer or multiple layers.

  Although the degree of wrinkles can be determined as appropriate according to the desired length of expansion and contraction, the stretch ratio at the wrinkle-forming portion is preferably 150 to 350%, particularly preferably 200 to 250%. Such an expansion rate can be achieved by fixing the elastic member G to the sheet-like material S in a state where the elastic member G is expanded at a similar expansion rate.

  As long as the heel is formed at least at a part of the locking portion 3, the range of formation is not particularly limited. However, as shown in FIGS. In addition to the formation, the main body 2 preferably has no wrinkles. Moreover, as shown in FIG. 4, the elastic member G can be provided in not only the whole latching | locking part 3 but the whole main-body part 2 (or one part), and a collar can also be formed. When forming a wrinkle in a part of the locking part 3, it is preferable to form a wrinkle over substantially the whole in the vertical direction with respect to a part in the width direction. Note that “not having a heel” includes not only the case where the elastic member G is not provided, but also the case where the ridge is not formed because the elastic member G is provided but is not fixed in an extended state.

  As the elastic member G, thread rubber, flat rubber, rubber sheet, rubber net, or the like can be used, and the number of installations can be appropriately determined according to the shape, installation area, and the like. Therefore, a single elastic member G or a plurality of elastic members G may be provided. In the case of providing a plurality, they may be arranged so as not to overlap each other, such as arranged in parallel, or may be arranged so as to overlap each other, such as intersecting. The illustrated form is a form in which a plurality of elongated elastic members G such as rubber thread are provided in parallel.

  The direction of the ridge can be determined as appropriate according to the ridge formation site or the like. In a normal case, the elastic member G is elastically expanded and contracted along the width direction as shown in the figure. It is preferable to be configured to be formed. However, the elastic member G is provided so as to elastically expand and contract along the longitudinal direction and the oblique direction, and the ridges along the width direction and the oblique direction can be formed, and further, the ridges in different directions can be formed for each part. .

  When a plurality of elongated elastic members G are provided in parallel, the shape of the collar can be adjusted by the thickness of the elastic members G and the arrangement interval. For example, when elastic members having a thickness of 620 dtex or less are provided in parallel at intervals of 7.0 mm or less, fine wrinkles W are formed as shown in FIG. 8, and the elastic members G are thicker than this, or the arrangement interval is wide. As a result, a rough ridge W is formed as shown in FIG.

  On the other hand, the portion having no ridges can be formed by not providing the elastic member G or fixing the elastic member G without stretching, but, for example, a portion having ridges as in the outer layer 2A in the form shown in FIG. If the parts that do not have the same are provided on the same sheet-like material, the manufacture becomes difficult. Therefore, the elastic member is continuously supplied to the sheet-like material in the stretched state in the same manner as the portion where the wrinkles are formed in the portion where no wrinkles are formed, but the application of the adhesive is intermittently stopped in the portions where the wrinkles are not formed. By doing so, it is possible to adopt a method in which the elastic member is not fixed to the sheet-like material and the elastic member in the non-fixed portion is cut or melted later. In the cut portion or the like, the elastic member is not fixed in the stretched state, and thus the portion does not have the wrinkles. Such a method is disclosed in Japanese Patent Application Laid-Open Nos. 2002-178428 and 2002-35029 by the present applicant.

(Sheet material)
The sheet material S can be appropriately determined, but a moisture permeable material having a moisture permeability of 300 g / m ² · hr or more as defined in JIS Z 0208 can be used.

  Examples of such a material include a porous sheet having a large number of transmission holes, a net material, short fibers or long fiber aggregates such as woven fabrics and nonwoven fabrics, and laminates thereof.

  When using a fiber assembly, what the raw material fiber is is not particularly limited. Examples include synthetic fibers such as polyethylene and polypropylene such as olefins, polyesters and polyamides, recycled fibers such as rayon and cupra, natural fibers such as cotton, and mixed fibers in which two or more of these are used. can do.

  Furthermore, when using a nonwoven fabric, what was manufactured by what kind of processing may be sufficient. Examples of the processing method include known methods such as a spunlace method, a spunbond method, a thermal bond method, a melt blown method, a needle punch method, and an air through method. In addition, in order to improve the performance of blocking pollen and fine dust, it is also possible to use a laminated nonwoven fabric having a layer made of ultrafine fibers (diameter of about 0.5 to 5 μm) such as SMS nonwoven fabric or SMMS nonwoven fabric. it can.

When using a fiber assembly, the basis weight can be about 15 to 70 g / m ² , particularly about ²⁰ to 50 g / m ² . If the basis weight is excessively reduced, a problem with strength tends to occur. In particular, if the attachment and detachment is repeated, there is a risk that the locking portion or the like may be broken. In addition, when the amount of basis weight is excessively large, the texture may be impaired, and it may be difficult to beat or the friction with the skin may be increased.

  In addition, a common sheet-like material or a different sheet-like material may be used in the portion having the wrinkles and the portion not having the wrinkles.

(Layer structure)
The main body 2 and the locking portion 3 may have a single-layer structure, but preferably have a structure composed of a plurality of layers. For example, as shown in FIG. 2, a two-layer structure having an outer layer 2A and an inner layer 2B, or a three-layer structure having an outer layer 2A, an inner layer 2B, and an intermediate layer 2C interposed therebetween as shown in FIG. It can be done. Further, as shown in FIG. 2, the main body 2 and the locking portion 3 are integrally formed as a single member by the outer layer 2A, and the inner layer 2B is laminated on the inner surface of the portion corresponding to the main body. The main body 2 can also have a two-layer structure (not shown, but the main body 2 and the locking portion 3 are integrally formed by the inner layer, and the outer layer is laminated on the outer surface of the main body corresponding portion. Can also). Such a layer structure composed of a plurality of layers can also be employed in the locking portion 3.

  In the case of a plurality of layers, all or a part of the layers (upper and lower ends, left and right ends, four corners, dotted points, etc.) may be bonded and fixed to other adjacent layers or adjacent members. It is also possible to hold a certain layer by sandwiching it between other layers without fixing. In short, it can be used without dropping or peeling off the layer.

  In the case of a plurality of layers, at least one layer, for example, the inner layer 2B in a two-layer structure as shown in FIG. 2, or the intermediate layer 2C in a three-layer structure as shown in FIG. 9 or FIG. It is preferably a functional layer having at least one function such as an aroma function, a virus / allergen inactivation function, an antibacterial function, a shape retention function, an air permeability improvement function, a humidity adjustment function, and a hood function.

  Furthermore, in the case of a plurality of layers, it is also a preferable form that at least one layer is detachably attached to another layer. Thus, when providing a detachable layer, the layer can be made into the above-mentioned functional layer.

  For example, as shown in FIG. 9, the intermediate layer 2 </ b> C in the three-layer structure can be freely inserted and removed through a gap at the edge of the main body 2 (or an opening provided in the outer layer 2 </ b> A or the inner layer 2 </ b> B). . In the example shown in FIG. 10, the intermediate layer 2 </ b> C in the portion corresponding to the cheeks of the both locking portions 3 can be inserted and removed freely. In this example, it is preferable that the intermediate layer 2C to be taken in and out is a squirrel furnace. In addition, although not shown, in the case of a two-layer structure, one layer can be detachably attached to the outer surface of the other layer by using a bonding means that can be peeled off and adhered, such as an adhesive material or a mechanical fastener. The number of layers to be detachable is not particularly limited, and may be one layer or a plurality of layers.

  As can be understood from these examples, the layers in these layer structures include not only the sheet-like material S itself but also a laminate of a plurality of sheet-like materials S and articles such as a hood. .

(size)
The size of the main body 2 can be determined as appropriate, and is not particularly limited. For example, in the case of a pocket type, it can be 90 to 150 mm in length and 100 to 350 mm in width. It can be set to 60-110 mm and width 80-180 mm.

(Other)
Joining of members and layers (including sheet materials) should be done by known joining means such as heat seal, hot melt adhesion, ultrasonic welding, adhesion (can be peeled and reattached or impossible), mechanical fastener, etc. Can do.

  Needless to say, the configuration of the pocket type and the configuration of the flat type are not exclusive and can be replaced with each other.

  The present invention can be applied to a wide range of uses in addition to a mask covering a nose and mouth for the purpose of blocking allergens in hay fever and the like, and preventing infection in colds and the like.

It is a perspective view which shows the 1st shape example. It is a perspective view which shows the 2nd shape example. It is a perspective view which shows the example of a 4th shape. It is a perspective view which shows the example of arrangement | positioning of another elastic member. It is sectional drawing of the principal part. It is sectional drawing of the principal part. It is a perspective view which shows the form of a bag. It is a perspective view which shows the form of another bag. It is a perspective view which shows another form. It is a perspective view which shows another form. It is a perspective view which shows another form.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Mask, 2 ... Main-body part, 3 ... Locking part, 4 ... Joint part, 5 ... Opening, 6 ... Pleat.

Claims (6)

In a mask having a main body part that covers a target portion of the face and a locking part for locking the main body part to the body,
At least a part of the engaging portion is formed by a sheet-like material, an elastic member fixed in an expanded state with respect to the sheet-like material, and the sheet-like material contracting along with elastic contraction of the elastic member. Having spears,
A mask characterized by that.   The mask according to claim 1, wherein the stretch ratio in the portion having the wrinkles is 150 to 350%.   The mask according to claim 1, wherein the main body does not have the wrinkles.   The mask according to claim 1, wherein the elastic member is provided so as to elastically expand and contract along the width direction, and a ridge along the vertical direction is formed.   The elastic member is a thread-like member having a thickness of 620 dtex or less provided along the width direction, and the thread-like member is provided over substantially the entire length in the longitudinal direction at intervals of 7.0 mm or less. Item 5. The mask according to any one of Items 1 to 4.   The said latching | locking part is a strip | belt-shaped member which connects the both sides of the said main-body part, It is comprised so that this strip | belt-shaped member may be hung around a head part or a neck part, and may be latched. The mask according to item.

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