TWI686184B - Materials for disposable fiber products and disposable fiber products using the same - Google Patents

Abstract

The invention provides a material for disposable fiber products with excellent water evaporation, heat dissipation and moisture permeability. In addition, the present invention uses the above-mentioned materials as materials for disposable fiber products, and provides a disposable fiber product that is excellent in the wearing feeling or skin contact of the product and has excellent water evaporation, heat dissipation, and moisture permeability.

The material for disposable fiber products of the present invention is composed of a laminate sheet 30 having first and second fibrous sheets 2, 3 having air permeability, and interposed between the first and second fibrous sheets 2 The fiber material 4 with liquid diffusibility between 3 and 3 is formed by laminating the first and second fibrous sheets 2, 3 and the fiber material 4 together with the elastic member 5; and, the laminated sheet 30 is formed A composite layer 31 formed by laminating a fiber layer having air permeability and a fiber layer having liquid diffusivity; the laminate sheet 30 has a pleated portion 6 formed with a concave-convex surface by the composite layer 31; and The material for disposable fiber products is configured to impart elasticity to the laminate sheet 30 described above.

Description

Materials for disposable fiber products and disposable fiber products using the same

The present invention relates to a disposable fiber product material used in the manufacture of disposable fiber products such as disposable underwear or diapers, and the present invention relates to a disposable fiber product manufactured using the material.

It is known that the materials used in disposable fiber products are widely used as underwear for travel, disaster prevention, outdoor use, simple or temporary use in hospitals, facilities, hotels, etc. in addition to diapers and hygiene products , Clothes, bedding and other materials. As the material, a good wearing feeling is required when wearing the material product on the body. For example, in the case of diapers, hygiene products, or underwear, it has a good fit with the body, a good touch when touching the skin, good breathability, moisture evapotranspiration that absorbs sweat and makes the skin dry (hereinafter, referred to as water evapotranspiration) ) Goodness is more important as the required property of the material.

In the case of diapers that are one of the disposable fiber products, the raw materials used almost always use non-woven materials according to their function. For example, Patent Document 1 discloses a disposable paper diaper constructed in such a manner that an absorbent body such as cotton pulp is interposed in a liquid-permeable top sheet composed of a non-woven fabric and the like and a liquid-impermeability composed of polyethylene or the like A diaper formed between bottom sheets. An inner pad is installed on the diaper body. The inner pad also allows absorbent materials such as cotton pulp to intersect the liquid-permeable top sheet made of nonwoven fabric and the like. Made of liquid-impermeable bottom sheet made of polyethylene.

In addition, it has previously been proposed to give skin care functions to disposable pajamas provided to hoteliers and the like. For example, Patent Document 2 discloses an implementation of impregnating or coating lipophilic humectants Disposable pajamas formed by processing non-woven materials as skin care functions.

Patent Literature 1 Japanese Patent No. 3667267

Patent Literature 2 Japanese Patent Laid-Open No. 2009-97104

In Patent Document 1, although the non-woven fabric used as the raw material of the liquid-permeable top sheet has air permeability, it has a problem of low moisture evapotranspiration. In addition, the diaper shown in Patent Document 1 uses a liquid-impermeable bottom sheet to prevent leakage of urine and other excretions, but the liquid-impermeable bottom sheet is also originally one with low water evapotranspiration performance. In addition, it is also known that the back sheet is usually provided with moisture permeability in a diaper, but it does not contribute to the improvement of moisture evapotranspiration performance. In this way, the conventional materials used for paper diapers do not have sufficient moisture evapotranspiration performance, and water vapor such as sweat will stay inside the diaper and unavoidable feelings of unpleasantness such as stuffiness or stickiness are unavoidable.

Furthermore, the conventional material materials used for paper diapers have the following disadvantages: the heat dissipation of diffusing the heat generated by the body to the outside is also poor, and the heat is retained in the diaper to cause discomfort. In addition, this material material is used when wearing a diaper with a fiber material that gives an unpleasant touch to the skin, a cotton-like material that feels comfortable, a cold or dry touch, and a lack of freshness when wearing. There is room for improvement in the constituent materials of disposable fiber products.

The disposable pyjamas in Patent Document 2 have the following disadvantages: the material itself does not have a skin care function, but is given the target skin care function by impregnating or applying lipophilic moisturizing agent and other post-processing, making the manufacturing laborious and costly.

Generally speaking, as materials for materials such as disposable fiber products that directly contact human skin, the softness of the material itself, the overall softness, etc. are required. Also, as materials for clothes for travel, disaster prevention, outdoor use, etc., from the viewpoint of appearance and visibility, efficiency is also required It also effectively expresses the diversified design with high aesthetics, and also requires media properties such as information or publicity or advertisement. Furthermore, it is also expected that various functions can be given depending on the application.

An object of the present invention is to provide a material for disposable fiber products having excellent water evapotranspiration, heat dissipation, and moisture permeability. In addition, the present invention uses the material of the present invention as a material for disposable fiber products, and aims to provide a disposable fiber product which is excellent in the wearing feeling or skin contact of the product and is excellent in water evaporation, heat dissipation, and moisture permeability.

In addition, the object of the present invention is to provide a disposable type that can efficiently and effectively express a variety of designs or messages, and exert the texture of the raw materials of the materials and the overall softness or softness of the materials and excellent comfort during use. Material for fiber products. Furthermore, an object of the present invention is to provide a material for disposable fiber products that can be efficiently and effectively provided with various functions according to the use and is easy to manufacture, and to provide a disposable fiber product that exhibits the characteristics of the material.

The material for disposable fiber products of the present invention is composed of a laminate sheet having first and second fibrous sheets having air permeability, and a material interposed between the first and second fibrous sheets Fibrous material with liquid diffusivity, which is formed by laminating the first and second fibrous sheets and the fibrous material; the laminated sheet forms a composite layer, which is a fiber structure layer with air permeability and liquid diffusion The fiber structure is laminated; the laminate sheet has a pleated portion formed with a concave-convex surface of the composite layer; and the material for a disposable fiber product has a structure that imparts elasticity to the laminate sheet.

As a means for imparting elasticity to the laminate sheet, an elastic member is provided between the fibrous material and the second fibrous sheet.

The first fibrous sheet and the fibrous material are preferably intermittently joined via an elastic member, and the second fibrous sheet and the fibrous material are preferably intermittently joined.

The first fibrous sheet and the fibrous material are preferably interposed between elastic members and Bonded by hot melt adhesive. In addition, the second fibrous sheet and the fibrous material are preferably joined by a hot melt adhesive.

The elastic member is composed of a plurality of linear elastic bodies having elasticity, and the plurality of linear elastic bodies are arranged at intervals in the width direction of the laminate sheet and are interposed between the first fibrous sheet and the fibrous material Join.

The above-mentioned linear elastic body may be provided in the entire region inside the laminate sheet, or may be provided in a part of the region.

Regarding the material of the present invention, a plurality of pleats are formed in the laminate sheet and have a pattern forming rows of pleats along the longitudinal direction of the linear elastic body in a non-stretched state Extend in the orthogonal direction.

The fiber material preferably has a soft structure formed by mechanical softening treatment. In addition, the above fiber material is preferably subjected to fragility treatment.

The first fibrous sheet and the second fibrous sheet are preferably made of a material having air permeability and moisture permeability, and as such a material, a nonwoven fabric is preferably used.

The above-mentioned fiber material is preferably composed of a material having liquid diffusibility and liquid permeability, and as such a material, a paper material is preferably used.

The disposable fiber product of the present invention is constructed using the materials for disposable products described above.

The disposable fiber products of the present invention can be constructed as underwear, diapers, fitness clothing, swimwear, tube tops, household clothing, raincoats, or abdominal belts.

The material of the present invention has excellent moisture evapotranspiration, heat dissipation and moisture permeability. When the material of the present invention is used as a material for disposable fiber products, the product can be given a good wearing feeling.

In addition, since the material of the present invention has elasticity, it is excellent in flexibility and skin contact with the body, and has the effect that the size of the product can be freed by the elasticity.

The disposable fiber product of the present invention is constructed using the above materials, has a refreshing feeling of wearing and soft skin contact, and has excellent moisture evapotranspiration, heat dissipation and moisture permeability.

2: The first fibrous sheet

3: 2nd fibrous sheet

4: Fiber material

4a: printed layer

5: elastic member

5a: linear elastomer

6: pleated part

6a: convex part

6b: recess

7: then layer

8: Non-contiguous part

9: Space

10: Underwear

12: Abdomen wearing part

14: waist wear part

16: Elastic sheet

18: Absorber

100: underwear (or T-shirt)

101: take a flat mouth

102: Girdle

103: rain gear

104: supporter

105: bandage

200: skin

300: Khan

P: user

Z: Adhesive penetration part

FIG. 1 is a plan view showing an embodiment of the material for disposable fiber products of the present invention.

Fig. 2 is a perspective view of the material shown in Fig. 1.

Figure 3 is an enlarged view of the main part of the material shown in Figure 1.

Fig. 4 is a cross-sectional view taken along line A-A of Fig. 3.

Fig. 5 is a cross-sectional view taken along line B-B of Fig. 3.

6a to 6j are schematic views respectively showing the arrangement of elastic members constituting the material of the present invention.

7 is a front view of an underwear (T-shirt) which is a disposable fiber product of the present invention and is composed of the material of the present invention.

Fig. 8 is a perspective view showing a wearing state of a garment (a flat mouth fit) as a disposable fiber product of the present invention.

Figure 9 is a front view of a bellyband as a disposable fiber product of the present invention.

10 is a perspective view of a rain gear as a disposable fiber product of the present invention.

11a to 11e are perspective views showing the wearing state of the protective band of the disposable fiber product of the present invention.

12 is a perspective view of a bandage as a disposable fiber product of the present invention.

13a to 13c are explanatory diagrams for explaining the function of the pleated portion in the material of the present invention.

14 is a cross-sectional view of a main part of a laminate that constitutes the material of the present invention.

15 is a conceptual diagram for explaining the space formed between the second fibrous sheet and the fibrous material.

Fig. 16 is a schematic diagram showing an adhesive penetration portion formed in a layer of fiber material.

Fig. 17 is a view showing a wearing state of a pant-type diaper which is a disposable fiber product of the present invention.

FIG. 18 is an explanatory diagram for explaining the water evapotranspiration (II) test (Japanese Textile Inspection (BOKEN) Standard BQEA028) in Examples.

FIG. 19 is a graph showing evapotranspiration rates showing water evapotranspiration in Examples and Comparative Examples.

Fig. 20 is a graph showing the moisture vapor permeability showing moisture permeability in Examples and Comparative Examples.

Hereinafter, an embodiment of the present invention will be described based on the drawings. FIG. 1 shows an embodiment showing the surface state of the material 1 according to the embodiment of the present invention. In Fig. 1, the material 1 is a continuation in the first direction, that is, the x direction. 5 represents an elastic member provided inside the material, and FIG. 1 shows a state that “a plurality of elastic members 5 form a plurality of uneven surfaces”. As shown in FIG. 2, by the plurality of uneven surfaces, a plurality of pleats 6 are formed.

As shown in FIGS. 4 and 5, the material 1 is composed of a laminate 30 including: a first fibrous sheet 2 having air permeability, a second fibrous sheet 3 also having air permeability, and a medium The fibrous material 4 having liquid diffusibility existing between the first and second fibrous sheets 2 and 3, and the laminated sheet 30 is to laminate the first and second fibrous sheets 2, 3 and the fibrous material 4 Successor. The first and second fibrous sheets 2 and 3 constitute a fiber layer having air permeability, and the fiber material 4 constitutes a fiber layer having liquid diffusivity. In this way, the laminated sheet 30 forms a composite layer 31 of "a fiber layer having air permeability (air-permeable fiber layer) and a fiber layer having liquid diffusivity (liquid diffusible fiber layer)", and the composite layer 31 is composed of the first The air-permeable fiber layer, the liquid-permeable fiber layer adjacent to the first air-permeable fiber layer, and the second air-permeable fiber layer adjacent to the liquid-diffusible fiber layer are composed of three layers.

The first fibrous sheet 2 and the fiber material 4 are intermittently joined via the elastic member 5. Better The connection between the second fibrous sheet 3 and the fiber material 4 is also intermittent. As the above-mentioned bonding means, bonding, thermal welding, ultrasonic bonding, etc. can be used, and from the viewpoint of ease of work, bonding is preferable. In the following, an embodiment of the present invention in the case of using a connection as a joining means will be described.

In the bonding as the bonding means, it is preferable to use a hot-melt adhesive as the adhesive. Hereinafter, an embodiment of the present invention in the case of using a hot-melt adhesive as an adhesive will be described. Regarding the use of a hot melt adhesive to intermittently join the second fibrous sheet 3 and the fiber material 4, as shown in FIG. 14, the hot melt adhesive is intermittently applied to the fiber material 4 (or the second fibrous material may be intermittently The sheet 3 is coated with a hot-melt adhesive), and the two are laminated and joined together. At this time, a non-adhesive portion 8 where the adhesive layer 7 does not exist is formed between the second fibrous sheet 3 and the fiber material 4, and the non-adhesive portion 8 forms a space 9. In addition, since the elastic member 5 is interposed between the first fibrous sheet 2 and the fibrous material 4, the first fibrous sheet is performed by joining the first fibrous sheet 2 and the fibrous material 4 at the position of the elastic member 5 2 Intermittently combined with the fiber material 4. That is, as shown in FIG. 14, the hot-melt adhesive is blown and applied to the circumferential surfaces of the plurality of elastic members 5 arranged in parallel at specific intervals, so that the elastic member 5 coated with the hot-melt adhesive is located at Between the surface of the fiber material 4 in the laminate sheet of the second fibrous sheet 3 and the fiber material 4" and the "first fibrous sheet 2", between the surface of the fiber material 4 in the laminate sheet and the first fibrous sheet The elastic member 5 is sandwiched between the 2 and laminated, so that they are bonded together. The surface of the elastic member 5 that does not face the first fibrous sheet 2 and the fiber material 4 becomes the non-adhesive portion 8, and the non-adhesive portion 8 forms the space 9, but it is not particularly shown in FIG. 14. FIG. 15 shows a state where the space 9 formed by the non-adhesive portion 8 is formed in the pleated portion 6. In this way, by forming the structure of the space 9 formed by the non-adhesion portion 8, the functions of the water evapotranspiration, heat dissipation, and moisture permeability of the material 1 are improved.

As shown in FIG. 4, in the laminated sheet 30, the uneven surface is formed by the composite layer 31, and the pleated portion 6 is formed by the uneven surface. As shown in FIGS. 2, 3, and 4, the convex portion 6 a and the concave portion 6 b of the uneven surface form the pleated portion 6, and the convex portion 6 a and the concave portion 6 b are continuously formed, thereby forming a plurality of pleated portions 6.

As a means for forming the pleated portion 6 composed of the convex portion 6a and the concave portion 6b, as described above An elastic member 5 is arranged inside the material 1. A linear elastic body 5a having elasticity is used as the elastic member 5, and a thread-like rubber can be preferably used as the linear elastic body 5a. Hereinafter, an embodiment in the case where the linear elastic body 5a is used as the elastic member 5 will be described.

As shown in FIGS. 1 and 2, the linear elastic body 5a has a line extending in the same direction as the longitudinal direction of the laminate 30 (the x direction in FIGS. 1 and 2), and is a plurality of The linear elastic bodies 5a are arranged in parallel at specific intervals. That is, the linear elastic bodies 5a are arranged at intervals in the width direction of the laminate sheet 30 (the y direction in FIGS. 1 and 2 ), and a plurality of linear elastic body rows are formed.

As shown in FIG. 5, the linear elastic body 5 a is provided between the first fibrous sheet 2 and the fiber material 4. In the present invention, the number of linear elastic bodies 5a per unit area can be set arbitrarily. Therefore, the interval between the linear elastic bodies 5a in the linear elastic body row can also be set arbitrarily. Here, the one pleated portion 6 extending from one end to the other end in the y direction (a second direction different from the first direction) in FIGS. 1 and 2 is referred to as a "row pleated portion". Pleat portions 6 are formed in a plurality of rows at specific intervals in the x direction in FIGS. 1 and 2. Here, the junction of the composite layer 31 at the pleated portion 6 and the linear elastic body 5a is referred to as the pleated portion support point. As described above, the number of linear elastic bodies 5a per unit area can be arbitrarily set, but if the number of linear elastic bodies 5a is increased, the interval between the linear elastic bodies 5a is reduced, whereby a row of pleats The number of support points of the pleated portion in the portion increases, so that the convex portion 6a and the concave portion 6b in the row of pleated portion 6 can be formed into a uniform shape and maintain the shape. With this, the pleated portion 6 is not deformed, and it is preferable from the viewpoint of increasing the flexibility, moisture evapotranspiration, heat dissipation, and moisture permeability of the material 1. In terms of such a subject, the interval between the pleated portions 6, that is, the interval between the convex portions 6 a is preferably 2 mm to 7 mm. The distance between the convex portions 6a is more preferably 3.00 mm to 6.25 mm. By narrowing the distance between the convex portions 6a, fine texture pleats can be formed, so the appearance becomes beautiful, and since the contact area of each pleats with the skin becomes smaller, the skin feels better, Furthermore, as the surface area becomes larger, the absorption of sweat and the like is improved. On the other hand, by widening the interval between the convex portions 6a, the elasticity of the filamentous rubber can be appropriately suppressed, and the manufacturing cost can be reduced.

Here, an example of a manufacturing method for manufacturing the material 1 of the present invention using a wire-shaped rubber as the linear elastic body 5a and a hot-melt adhesive as the adhesive will be described. As described below, it is preferable to use paper material as the fiber material 4, and it is preferable to use non-woven fabric as the first fibrous sheet 2 and the second fibrous sheet 3, respectively. A case where a non-woven fabric is used as the first fibrous sheet 2 and the second fibrous sheet 3 is used as an example to describe the method of manufacturing the material 1 of the present invention. Here, the nonwoven fabric used as the first fibrous sheet 2 is referred to as a first nonwoven fabric sheet, and the nonwoven fabric used as the second fibrous sheet 3 is referred to as a second nonwoven fabric sheet.

First, the paper material as the fiber material 4 is wound out from the roll winding body. A printing layer 4a (see FIGS. 4 and 14) is formed in advance on this paper material. The rolled paper material is passed through an embossing roller and pressed between the rollers, thereby performing mechanical softening treatment. The mechanical softening treatment may be an embossing treatment using a flat roll, or may be an embossing treatment using an intermeshing roll with a plurality of protrusions on the roll surface. During the latter embossing process, a number of fine holes are opened in the paper material. The hot melt adhesive is intermittently blown to the paper material after the above embossing treatment. Furthermore, mechanical processing other than embossing can also be used. On the other hand, the second non-woven fabric sheet, which is the second fibrous sheet 3, is wound out from the roll winding body, and the second non-woven fabric sheet and the paper material coated with the hot-melt adhesive are pressure-bonded by a flat roller, The two are laminated to produce a bonded body sheet. In this joined body sheet, the second nonwoven fabric sheet and the paper material system are joined intermittently.

A plurality of rows of filamentous rubber are wound out from a roll winding body in which a plurality of filamentous rubbers are wound in parallel. Filamentous rubber is unwound under a state of being stretched by a specific stretching force. The hot-melt adhesive is blown onto the wound filamentous rubber. In this case, the adhesive is continuously blown over the entire length of the filamentous rubber. In addition, the adhesive is applied to the entire circumferential surface of the filamentous rubber. On the other hand, the first non-woven fabric sheet as the first fibrous sheet 2 is unwound from the roll winding body, and the first non-woven fabric sheet is sent out so as to face the above-mentioned bonded body sheet and sandwiched as described above Filamentous rubber coated with an adhesive is supplied between the bonded body sheet and the first nonwoven fabric sheet in the form of a filamentous rubber. In this case, the filamentous rubber is supplied between the surface of the paper material of the joined body sheet and the first nonwoven fabric sheet.

The silk-like rubber is passed through the flat roller in a state sandwiched between the surface of the paper material of the joined body sheet and the first nonwoven fabric sheet. The joined body sheet, the silk-like rubber, and the first non-woven fabric sheet are pressure-bonded by a flat roller and laminated as one. Since the first non-woven fabric sheet and the paper material are joined via the thread-like rubber, the two are joined intermittently. In this manner, the laminated sheet 30 formed by intermittently joining the second nonwoven fabric sheet and the paper material and intermittently joining the first nonwoven fabric sheet and the paper material is manufactured. If necessary, the laminated sheet 30 is passed through an embossing roller to perform mechanical softening treatment. By performing this process, the flexibility of the material 1 can be further improved.

Since the manufactured laminate sheet 30 has a long size, cutting is performed to make the length dimension of the laminate sheet 30 in the longitudinal direction (x direction in FIGS. 1 and 2) to a specific length. In this cutting, the first nonwoven fabric sheet, the second nonwoven fabric sheet, the paper material, and the filamentous rubber are cut. By cutting the filamentous rubber, the filamentous rubber in the stretched state is released from the tensile force and contracted by the restoring force. Due to the shrinkage stress at this time, the composite layer 31 composed of the first nonwoven fabric sheet, the second nonwoven fabric sheet, and the paper material is stressed in the direction in which the length becomes shorter, so that the uneven surface is formed on the composite layer 31, thereby forming pleats裥部6. In this way, the material 1 having a plurality of pleats 6 can be manufactured.

If the structure of the material 1 of the present invention is described here, the linear elastic body 5a is in a state of being shortened by a restoring force, that is, a non-stretched state, and a plurality of The longitudinal direction of the elastic body 5a (the same direction as the x-direction of the lamination sheet 30 in FIGS. 1 and 2) is orthogonal to the direction (the y-direction is the width direction of the lamination sheet 30 in FIGS. 1 and 2) In the same direction) the pleated portion 6 extending" forms a pattern of pleated portions on the laminate 30.

The linear elastic body 5a may be provided in the entire region inside the laminated sheet 30, or may be provided in a part of the region. In the case where the linear elastic body 5a is provided in all areas inside the laminate sheet 30, since the material 1 is given a uniform elasticity, when the material 1 is used as a covering sheet for disposable shorts or paper diapers, it has the following Advantages: It will be kept on the body without risk of falling off.

The linear elastic body 5 a disposed inside the laminated sheet 30 gives elasticity to the laminated sheet 30. Therefore, if the material 1 composed of the laminated sheet 30 is stretched by hand in the x direction in FIGS. 1 and 2, Then, the linear elastic body 5a extends, so the material 1 also stretches, and if it is released from this state, the linear elastic body 5a contracts by its resilience, whereby the material 1 also returns to its original size state. In this way, the material 1 has elasticity, so when the material 1 is used as a material for disposable fiber products such as underwear and diapers, it will become a person with excellent fit to the body and can be freely sized.

In addition, the material 1 may be formed by laminating two or more lamination sheets 30, or may be formed by laminating one or more lamination sheets 30 and one or more lamination sheets.

The material 1 of the present invention can be preferably used as a raw material for disposable fiber products, and is advantageous as a raw material having unprecedented excellent properties. For the disposable fiber products to which the material 1 of the present invention is applied, it is not limited to those who use it once and discard it. Depending on the use purpose and purpose, it also includes repeated users within a short period of time. Followed by the cleaner.

Preferably, both the first and second fibrous sheets 2 and 3 are made of materials having air permeability and moisture permeability, and as such fiber materials having air permeability and moisture permeability, it is preferably as described above Use non-woven fabric.

In the present invention, as the above-mentioned non-woven fabric, a well-known non-woven fabric that has been widely used in the past can be used. That is, a well-known non-woven fabric having "a fiber structure having unidirectional or random fiber alignment and inter-fiber bonding by interlacing, fusion, or bonding" can be used. Examples of nonwoven fabric fiber materials include natural fibers such as vegetable fibers (cellulose polymers) and animal fibers (protein polymers); purified fibers such as soluble cellulose (Lyocell) and tencel (Tencel); rayon and mucus Recycled fibers such as rayon; semi-synthetic fibers such as acetate; synthetic fibers such as nylon and acrylic fibers; chemical fibers such as PP (polypropylene), PE (polyethylene), PET (polyethylene terephthalate), etc.; One of these may be used alone, or two or more of these may be used in combination. Also, other materials may be included as necessary.

The nonwoven fabric used as the first fibrous sheet 2 and the second fibrous sheet 3 can be appropriately selected according to the type or application of the product using the application material 1. For example, when the material 1 is applied to clothing that is a disposable fiber product, and when worn, the first fibrous sheet 2 or the second fibrous sheet 3 will interact with When used in contact with the body of the user, it is preferable to use a non-woven fabric of materials that can exert functions such as flexibility, skin touch, and sweat absorption as the first fibrous sheet 2 or the second fibrous sheet 3. On the other hand, when the first fibrous sheet 2 or the second fibrous sheet 3 is used without being in contact with the user's body but on the surface of the clothing, it is preferably used to perform functions different from the above, for example A non-woven fabric such as water resistance is used as the first fibrous sheet 2 or the second fibrous sheet 3.

Examples of the raw materials of the nonwoven fabric used for the first fibrous sheet 2 and the second fibrous sheet 3 include: spunbonded nonwoven fabric, thermally bonded nonwoven fabric, spun lace nonwoven fabric, dry nonwoven fabric, wet nonwoven fabric, melted fabric Melt blown nonwoven fabrics, chemically bonded nonwoven fabrics, needle punched nonwoven fabrics, stitch bonded nonwoven fabrics, steam jet nonwoven fabrics, etc. Among them, spun bonded nonwoven fabrics, heat bonded nonwoven fabrics and water needle nonwoven fabrics are preferably used.

The nonwoven fabric used for the first fibrous sheet 2 and the second fibrous sheet 3 preferably has a weight per unit area, preferably 5 to 60 g/m ² , and more preferably 7 to 40 g/m ² . The reason why the weight per unit area of the nonwoven fabric is preferably within the above range is that, if the weight per unit area is less than 5 g/m ² , for example, when the hot melt adhesive is applied, the hot melt adhesive may bleed out to the surface of the nonwoven fabric. Also, if the weight per unit area exceeds 60 g/m ² , the thickness of the product becomes thick, the manufacturing efficiency is poor, and the packaging operation becomes cumbersome. When the weight per unit area of the non-woven fabric is set to 7 to 40 g/m ² , the bonding strength can be increased by combining the bonding method by hot-melt adhesive and the bonding method by heat sealing or ultrasonic bonding.

As the materials of the first fibrous sheet 2 and the second fibrous sheet 3, as long as they are made of a material having air permeability and moisture permeability, materials other than non-woven fabric may be used. For example, a breathable sheet or a moisture-permeable sheet made of synthetic resin can also be used.

When using the material 1 of the present invention as a raw material for disposable clothing, as shown in FIG. 13a, the second fibrous sheet 3 is rarely disposed on the side in contact with the user's skin 200, but when using the material 1 as a discard In the case of the raw material of the type bedding (for example, bed sheets, etc.), the second fibrous sheet 3 is often arranged on the side in contact with the skin 200 of the user. In this way, the second fibrous sheet 3 is directly connected to the human body In the case of touching, it is preferable to use a non-woven fabric having functions such as flexibility, skin touch, and sweat absorption as the material of the second fibrous sheet 3.

The fiber material 4 is preferably composed of a material having liquid diffusibility and liquid permeability, and as such a material having liquid diffusivity and liquid permeability, it is preferable to use a paper material as described above.

In the present invention, as long as the fiber material 4 is a material having liquid diffusibility and liquid permeability, materials other than paper materials can be used. As such a material, for example, natural fibers such as kenaf, bamboo fiber, hemp stalk, cotton, silk, sugar cane and the like can be used. Since the use of paper material as the fiber material 4 is a preferred embodiment of the present invention, the following uses the case of using the paper material as the fiber material 4 as an example.

As the above-mentioned paper material, a paper material formed of a material using pulp paper or pulp as a main material can be used. That is, it is possible to use paper materials manufactured by using paper pulp as a raw material and going through a paper manufacturing process such as a paper making process.

As the raw material pulp, wood pulp, synthetic pulp, waste paper pulp, etc. can be used. Moreover, it is not limited to natural fibers such as pulp, and regenerated fibers such as rayon may also be used. Furthermore, the present invention can also use toilet paper material as a raw material pulp. In this case, for example, a raw material pulp composed of bleached kraft pulp of coniferous trees obtained from coniferous trees such as Korean pine, spruce spruce, sash fir, yellow cedar, hemlock, and spruce can be used. Alternatively, the bleached kraft pulp of the coniferous tree may be blended with the bleached kraft pulp of broad-leaved trees obtained from broad-leaved trees such as beech, oak, birch, eucalyptus, oak, aspen, and alder. From the viewpoint of manufacturing cost or ease of manufacturing, it is preferable to use the above-mentioned conifer bleached kraft pulp alone as a raw material pulp.

When the paper material is formed of a material mainly made of pulp, the blending of the pulp is preferably 30% or more, more preferably 50% or more, and most preferably 80% or more. By setting the blending ratio of the pulp to the above ratio, the overall flexibility of the material 1 can be improved, or the production efficiency during manufacturing can be improved. also, By increasing the blending ratio of the pulp, the waste can be easily decomposed in soil, for example, after being discarded. Therefore, the environmental load can be further reduced, and the environmental considerations can be further improved. In addition, as the paper material, it is preferable to use a paper sheet having good hydrolyzability. In addition, the paper material constituting the fiber material 4 is preferably a single-layer structure composed of one sheet of paper, but may also be a multi-layer structure composed of a plurality of sheets of paper overlapping. In the case of a multi-layer structure, the raw materials or thickness of each layer of paper may be the same or different. In addition, the paper material constituting the fiber material 4 may be obtained by blending the above-mentioned pulp with a non-woven fabric. For example, as the paper material, a water needle nonwoven fabric blended with the above pulp or an airlaid nonwoven fabric blended with the above pulp may be used.

The weight per unit area of the paper material constituting the fiber material 4 is preferably 7-50 g/m ² . If the weight per unit area is less than 7g/m ² , it will be difficult to make the wearable feel when wearing the disposable fiber product composed of the material 1 of the present invention, and it will be difficult to give sufficient moisture evapotranspiration and heat dissipation performance to the above products, and the material The intensity of 1 also becomes insufficient. If the weight per unit area exceeds 50 g/m ² , the thickness of the material becomes thicker, the above-mentioned wearing feeling also becomes worse, and the above-mentioned moisture evapotranspiration performance and heat radiation performance also decrease. Moreover, since the thickness of the product also becomes thicker, it becomes difficult to package the product during packaging. A better paper material has a weight per unit area of 10~30g/m ² .

As the paper material constituting the fiber material 4, colored paper can also be used, and by constructing in this way, the material 1 with high aesthetics can be provided.

It is preferable to impart a soft structure to the paper material constituting the fiber material 4 by mechanical softening treatment. As the mechanical softening treatment, embossing treatment is used. As the embossing roller used for the embossing process, a pair of embossing rollers formed by forming a plurality of protrusions on the surface of the roller can be used. If the embossing roller is used for the embossing process, a plurality of fine holes are opened in the paper material, and at the same time, the tissue of the paper is weakened, thereby imparting flexibility to the paper material. The hole may be a circular hole, a linear hole, or a slit-shaped hole. By providing a rough surface formed by a plurality of irregularities without opening the paper material, the paper material can be similarly given flexibility.

The embossing roller used in the embossing process is not limited to a roller having protrusions, and a pair of flat rollers having a smooth roller surface without protrusions may be used. By passing the paper material between the flat rollers and pressing between the rollers, the paper tissue is weakened. That is, even without perforating, the paper structure is weakened by the pressing force between the rollers. Regarding the embossing process for imparting a soft structure to the paper material, the embossing process by the embossing roll provided with protrusions on the roll surface and the embossing process by the flat roll can also be combined.

As described above, by giving a soft structure to the paper material, it has the following effect: the material 1 as a whole becomes rich in softness, and the wearing feel of the disposable fiber product composed of the material 1 can be improved. That is, it does not make the user feel discomfort caused by using the paper material as the material of the above product, and gives the user a sense of satisfaction brought by the soft wearing feeling.

By giving a soft structure to the paper material, the following effects are produced. That is, if the paper material used as the fiber material 4 has a flexible structure, the entire laminate sheet 30 becomes a flexible structure, so it is easily deformed. Therefore, when the pleated portion 6 is formed by the shrinkage stress of the linear elastic body 5a, the laminate sheet 30 can be easily Deformed to form a pleated portion 6 having a uniform shape of the convex portion 6a and the concave portion 6b. By forming the pleated portion 6 in which the convex portions 6a and the concave portions 6b are uniform in shape, the overall flexibility of the material 1 is also increased, and in the disposable fiber product composed of the material 1, the user can be given a softer Dress sense. In addition, by giving softness to the paper material, it is possible to give a soft feel to the entire material 1.

In addition, as described later, the fragility treatment of the paper structure by embossing has the effect of imparting more excellent moisture evapotranspiration, heat dissipation, and moisture permeability to the material 1.

As described above, it is preferable to use a hot-melt adhesive for joining the second fibrous sheet 3 and the fiber material 4. Examples of the hot melt adhesive include EVA (ethylene-vinyl acetate copolymer) series, PO (polyolefin) series, PA (polyamide) series, SR (polysiloxane synthetic rubber) series, and ACR (acrylic acid). Adhesives such as the PUR (polyurethane-moisture-curing type) systems, etc., may be used alone or in combination of two or more. Used as a joint between the second fibrous sheet 3 and the fiber material 4 As the adhesive, in addition to the above hot-melt adhesive, an organic solvent-based adhesive, a water-soluble adhesive, or the like can be used.

Regarding the form in which the second fibrous sheet 3 and the fibrous material 4 are joined, the adhesive may be applied to the surface before the contact surfaces of the two, but it is preferably applied intermittently as described above. Compared with coating on the entire surface, intermittent application will make the material 1 soft, and the material 1 will have better water evaporation, heat dissipation, and moisture permeability. As the intermittent coating method of the adhesive, a method of coating into a linear shape, a dot shape, a stripe shape, a spiral shape, a block shape, a pattern shape, etc. may be mentioned, and one of these methods may be used, or Multiple methods are used in combination.

By intermittently applying the adhesive, a non-adhesive portion 8 is formed between the second fibrous sheet 3 and the fiber material 4. The area ratio of the non-adhesive portion 8 is preferably relative to the area of the second fibrous sheet 3 It is 5 to 85%, more preferably 10 to 80%, and further preferably 30 to 75%. If the area ratio of the non-adhesion portion 8 is within the above range, the material 1 has excellent flexibility, moisture evapotranspiration, heat dissipation, and moisture permeability, and the material 1 has excellent softness. According to this situation, it is considered that the amount of the adhesive to be applied is as long as it is necessary to obtain a specific bonding strength, and the amount of application is preferably as small as possible.

As described above, with regard to the linear elastic body 5a, the extending direction of the line is arranged in the same direction as the longitudinal direction of the laminate sheet 30 (the x direction in FIGS. 1 and 2), and in the width direction of the laminate sheet 30 (in In FIG. 1 and FIG. 2 (the y-direction), a plurality of spaced-apart elastomeric rows are formed at intervals. When arranging a plurality of linear elastic bodies 5a on the laminate sheet 30, it is not limited to arranging the linear elastic bodies 5a in parallel. The arrangement of the linear elastic body 5a is shown in FIGS. 6a to 6j.

As the arrangement of the linear elastic body 5a, linear linear elastic bodies 5a may be arranged in parallel as shown in FIG. 6a, or may be arranged in parallel linear lines as shown in FIGS. 6b and 6c All or part of the elastic body 5a is provided with a broken line portion, and the curved linear elastic body 5a can also be arranged in parallel as shown in FIGS. 6d, 6f, and 6g, or as shown in FIG. 6e and FIG. As shown in 6j, the curved linear elastic bodies 5a are arranged irregularly. Also, as shown in Figure 6h and Figure 6i, the line The elastic bodies 5a are arranged in a mesh pattern. In the arrangement of a plurality of linear elastic bodies 5a, each linear elastic body 5a preferably has the same stretch ratio, but may also be a combination of linear elastic bodies 5a having different stretch ratios. In addition, although not shown in the drawings, the elastic member 5 is not limited to a linear form, and a sheet-shaped elastic body provided with a plurality of holes or cuts and having specific air permeability may be used. As such a sheet-shaped elastomer, a rubber material based on urethane, silicon, or the like rubber, natural rubber, or the like can be used as a raw material. In the present invention, it is preferable to use a linear elastic body 5 a in a linear form as the elastic member 5.

Regarding the state where the linear elastic body 5a is joined between the first fibrous sheet 2 and the fiber material 4, the linear elastic body 5a can be joined to the first by the adhesive applied to the linear elastic body 5a The fibrous sheet 2 and the fibrous material 4 may be bonded to the first fibrous sheet 2 and the fibrous material by an adhesive applied to the first fibrous sheet 2 and the fibrous material 4 Between 4. As the adhesive, the same adhesive as that used when the second fibrous sheet 3 and the fiber material 4 are joined can be used. As the adhesive, a hot-melt adhesive is preferably used.

The hot-melt adhesive is applied to the circumferential surface of each linear elastic body 5a for coating, and the applied hot-melt adhesive functions as follows: When the linear elastic body 5a is sandwiched between the first fibrous sheet 2 and the fiber Since these three are joined in the state between the materials 4, there is no need to apply the hot melt adhesive to each of the first fibrous sheet 2 and the fiber material 4. Furthermore, instead of applying the adhesive to the linear elastic body 5a, the adhesive may be applied to the contact opposite surface of each of the first fibrous sheet 2 and the fiber material 4 with the linear elastic body 5a.

As described above, the hot melt adhesive applied by blowing onto the peripheral surface of each linear elastic body 5a is applied with the linear elastic body 5a sandwiched between the first fibrous sheet 2 and the fiber material 4 These three are joined, but in this joined state, a part of the hot-melt adhesive is immersed in the layer of the fiber material 4, and as shown in FIG. 16, the adhesive penetration part Z is formed. Since the adhesive penetration part Z and the hot-melt adhesive on the peripheral surface of the linear elastic body 5a are integrated, the adhesive penetration part Z exerts the anchoring effect when the linear elastic body 5a and the fiber material 4 are joined, so that The bonding of the linear elastic body 5a and the fiber material 4 by the hot-melt adhesive becomes stronger. In this way, the fiber material 4 has the anchor structure formed by the adhesive. Therefore, The advantage that a specific bonding strength can be obtained even if the amount of the adhesive applied to the linear elastic body 5a is small, and the strength of the entire material 1 is improved, thereby providing the material 1 with a sufficiently strong fastness. In FIG. 16, the adhesive agent applied between the second fibrous sheet 3 and the fiber material 4 is not shown.

In the materials of the conventional disposable fiber products, when the non-woven fabrics are joined to each other by an adhesive, there is a disadvantage that the adhesive oozes out to the surface of the material through the fiber gap of the non-woven fabric. However, in the material 1 of the present invention, due to the formation There is a composite layer 31, and the composite layer 31 contains the fiber material 4, so it has the effect of preventing the adhesive from seeping to the surface of the material by the adhesive penetrating into the fiber material 4.

As described above, in the manufacturing step of the material 1, the continuously manufactured laminate 30 is cut to make it into a product of a specific size and length. Since the product has a long size, cutting is performed to make the length dimension of the lamination sheet 30 in the longitudinal direction (the x direction in FIGS. 1 and 2) become a specific length. At the time of the cutting, the linear elastic body 5a is cut, so that the linear elastic body 5a in the stretched state is released from the tensile force and contracted by the restoring force. Due to the shrinkage stress at this time, a concave-convex surface is formed on the composite layer 31. Here, the bonding force between the linear elastic body 5a and the first fibrous sheet 2 and the bonding force between the linear elastic body 5a and the fiber material 4 When it is small, the so-called "rubber shedding" phenomenon occurs, that is, peeling occurs between the linear elastic body 5a, the first fibrous sheet 2, and the fibrous material 4, and there is no problem with the linear shape. The composite layer 31 composed of the first fibrous sheet 2 and the fiber material 4 joined by the elastic body 5a generates shrinkage stress. Due to this “rubber peeling”, the composite layer 31 is not stressed in the direction in which its length becomes shorter, so that the uneven surface may not be formed on the composite layer 31, so that the pleated portion 6 may not be formed. Here, as shown in FIG. 16, if an adhesive penetration portion Z formed of a hot-melt adhesive is formed in the layer of the fiber material 4, the bonding force between the fiber material 4 and the linear elastic body 5a becomes strong, so It is possible to prevent "rubber fall" when the linear elastic body 5a is cut.

The thickness of the material 1 can be set arbitrarily, or it can be formed thinly. When the thickness of the material is formed thinly, the air permeability and water permeability of the disposable fiber product composed of the material 1 can be made good, and the feeling of wearing can be made good.

When a paper material is used as the fiber material 4, as shown in FIGS. 4 and 14, the printing layer 4a is formed in the paper material as necessary. As shown in FIG. 14, the printed layer 4 a is formed in the fibrous material 4 on the side facing the second fibrous sheet 3. According to the embodiment of the present invention, since printing can be performed on paper materials without printing on nonwoven fabrics, clear patterns can be printed easily and efficiently, and thereby, various designs or messages can be expressed efficiently and effectively. In particular, by appropriately selecting the design or pattern printed on the paper material, selecting the non-woven fabric used for the second fibrous sheet 3, and the method of forming the adhesive layer 7, the overall design and high aesthetic material 1 can be provided . Examples of designs or patterns for printing on paper materials include drawings, colors, patterns, and photographs (hereinafter, referred to as "patterns, etc.").

For the paper material as the fiber material 4, for example, patterns are printed by inkjet, flexographic printing, gravure printing, or the like. The surface of the printed layer 4a can also be subjected to anti-discoloration treatment by, for example, painting or adding an adhesive. Examples of the binder include known materials such as PVA (polyvinyl alcohol), CMC (carboxymethyl cellulose), EVA (ethylene-vinyl acetate copolymer), acrylic acid, and lacquer. In addition, inks that have undergone anti-discoloration treatment can also be used.

The printed layer 4a is preferably formed by flexographic printing. The flexographic printing method has the following advantages: the contact area between the plate and the paper material is small, and the printing pressure is low. Therefore, it is easy to peel the paper material from the plate, and is particularly suitable for forming the printed layer 4a when the thickness of the paper material is thin. In addition, there are many types of inks that can be used in flexographic printing. In this respect, compared with the inkjet printing method in which ink is ejected through a nozzle or the like, there is no disadvantage that it is affected by the viscosity of the ink. In the case where the printed layer 4a expresses a pattern, etc., the pattern printed by the plate is printed in accordance with the state in which the laminate sheet 30 is stretched in the stretch direction of the linear elastic body 5a (x direction in FIG. 2) Drawings of designs that have been stretched, etc. When the stretched state of the linear elastic body 5a is released, the original target design (design not stretched) is shown. In the above case, the stretch rate of the printed pattern etc. in the x direction is determined by the stretch rate of the linear elastic body 5a. For example, the original target design (unstretched design) can be printed by stretching the length in the x direction to 1.1 times to 3.5 times.

By performing embossing on the paper material to form a plurality of concave portions or convex portions, a three-dimensional pattern or the like can be displayed on the printed layer 4a, and a design pattern or the like that differs depending on the angle of observation can be displayed. Furthermore, as shown in FIG. 14, the printed layer 4 a formed in the space 9 and the printed layer 4 a formed in the position covered by the adhesive layer 7 can be combined to provide the appearance of the printed layer 4 a. Design becomes rich. If the proportion of the space 9 is large, the printed layer 4a shown in the appearance has the feeling of being smudged, and if the proportion of the space 9 is small, the printed layer 4a shown in the appearance is clearly recognized .

Since the printed layer 4a can be seen from the outside through the second fibrous sheet 3, the material 1 can express various designs or messages efficiently and effectively. In order to be able to accurately recognize the printed layer 4a from the outside and to give it an aesthetic appearance, it is preferable to use a non-woven fabric as the second fibrous sheet 3.

In the disposable fiber product composed of the material 1 of the present invention, as shown in FIG. 13a, when sweat 300 adheres to skin 200, the pleated portion 6 exerts its wiping sweat by moving the body as shown in FIG. 13b. With the action of 300, the sweat 300 thus wiped is absorbed into the fiber material 4 (paper material) in the composite layer 31 (refer to FIG. 4). As shown in FIG. 13c, the unworn sweat 300 evaporates in the space formed by the pleated portion 6 and is similarly absorbed into the fiber material 4 (paper material). Thereby, the material 1 does not adhere to the skin 200 due to the sweat 300, and the sweat 300 absorbed into the fiber material 4 (paper material) can be efficiently evaporated to the outside (FIG. 13c). Therefore, the drying of Khan 300 is faster and there is no sticky feeling caused by Khan 300, and the wearer can wear comfortably.

Various additives can be added to the material 1 according to the nature of the product in the case where the material 1 of the present invention is applied to a disposable fiber product. Examples of additives include deodorants, insect repellents, fragrances, water repellents, antifouling agents, antibacterial agents, softeners, and the like. One or more of these may be added to the material 1. As an aspect to be added to the material 1, the additive may be added to any one of the first fibrous sheet 2, the second fibrous sheet 3, and the fibrous material 4, or may be added to two or more of these. As an addition means, additives are applied to the surfaces of the first fibrous sheet 2, the second fibrous sheet 3, and the fibrous material 4. In addition, when added to the first fibrous sheet 2 and the second fibrous sheet 3, the additives may be kneaded in advance Among the fibers constituting these sheets. In the case of adding to the paper material as the fiber material 4, in the papermaking step of papermaking, additives may be added to water in advance and papermaking is performed to thereby add the additives to the paper. In addition, when the printing layer 4a is formed in the material 1, the additive may be mixed in the printing ink in advance, and printing may be performed by the printing ink containing the additive.

Specific examples of the above-mentioned deodorants include catechins, epigallocatechin, epigallocatechin, and catechins, which are plant-derived extracts such as catechins or tannins. Epigallocatechin gallate, epigallocatechin gallate, gallotannin (gallotannin), and gallotan (ellagitannin); iron-ascorbic acid chelate compounds; Hydroxide of zirconium; hydroxide of lanthanides; metal salts of Zn, Cu, Fe, etc. (eg ZnSO ₄ ), etc. In addition, examples of deodorants having an adsorption effect include activated carbon; zeolite; silica; ceramics; oat stone; charcoal polymers; carbon nanotubes; carbon nanohorns; organic acids such as citric acid and succinic acid Acids; inorganic acids such as sulfuric acid, boric acid, phosphoric acid; ion exchangers; anions, ammonia, amines, olefins, alkynes, aromatics and other nucleophiles; cations, boron fluoride, aluminum chloride, iron bromide, chloride Electrophiles such as zinc and acetone. One of these deodorants may be used or two or more may be used in combination.

As specific examples of the above-mentioned insect repellent, N,N-diethyl-m-toluamide (DEET), dipropylpyridine-2,5-diformate, pyrethrin, phthalate Dimethyl formate, 2,3,4,5-bis(2-butylene)tetrahydrofurfural, citronella, geraniol, lemongrass oil (essential oil), eugenol, p-menthane-3,8 -Diol, ethylbutylacetamidopropionate, 1-piperidinecarboxylic acid 2-(2-hydroxyethyl) ester 1-methylpropyl ester, etc. Also, natural plant essential oil, citronella oil, lemon grass oil, cinnamon oil, eucalyptus oil, clove oil, cinnamon oil, lemon eucalyptus oil, cypress leaf oil, lavender oil, sweet orange oil, grapefruit can be used Oil, cedar wood oil, gerbera oil, thyme white oil, peppermint oil, etc. are used as insect repellents. Furthermore, citronellal, citronellol, citral, linalool, dihydrolinalool, tetrahydrolinalool, dehydrolinalool, terpineol, menthol, menthol, p-menthane-3,8 can be used -Essential oils such as glycol, camphene, methyl salicylate, pinene, limonene, geraniol, borneol, geranyl formate, etc. are used as insect repellents. Make One of these insect repellents may be used, or two or more may be used in combination.

Specific examples of the above-mentioned spices include fruits such as oranges, lemons, limes, and peaches; flowers such as roses and lavender; essential oils such as mint and white sandalwood. Generally, the aromatic component is oily or water-alcohol soluble. Examples of oily fragrances include: phenylethyl alcohol, linalool, jasmone, hexylcinnamaldehyde, α-limonene, α-pinene, bromostyrene, citronellal, trichloroacetaldehyde, terpineol, and mint Brain, cinnamic acid, etc. One kind of these spices may be used, or two or more kinds may be used in combination.

As the above-mentioned antibacterial agent, a carbendazim derivative having antibacterial properties can be used.

As the antifouling agent and softening agent, cationic surfactants such as alkylated quaternary ammonium salts commonly used as hair conditioners or clothing softeners can be used. Examples of the cationic surfactants include chloride Dicocoyl dimethyl ammonium, alkyl trimethyl ammonium chloride, etc. In addition, as antifouling agents and softeners, glycerin, propylene glycol, butylene glycol, dipropylene glycol, liquid paraffin, etc. can also be used. One of these antifouling agents and softeners may be used, or two or more may be used in combination.

The material 1 of the present invention is used as a material for disposable fiber products, and is particularly useful when it is used as a constituent material for disposable underwear such as disposable shorts or disposable diapers. In addition to the above, as a disposable fiber product constructed using the material 1 of the present invention, underwear or a T-shirt 100 as shown in FIG. 7, a flat inside 101 as shown in FIG. 8, and FIG. 9 can also be mentioned. The abdominal belt 102 shown, the rain gear 103 such as the raincoat shown in FIG. 10, the protective belt 104 used in various parts of the body such as the hands, arms, wrists, knees, and ankles shown in FIGS. 11a to 11e, and The bandage 105 shown in FIG. 12 and so on. In addition, although not specifically shown, it can also be applied to fitness clothing, sportswear, sweat-absorbent lining, swimwear, household clothing, etc. as disposable fiber products. In addition, when the material 1 of the present invention is applied to a hat as a disposable fiber product, the fiber material 4 can be worn with water, and in this case, the head of the user can be obtained by the vaporization of water Department of cooling effect.

In addition, the material 1 of the present invention can be used as a diaper bag for storing used diapers, for women All kinds of physiological supplies, various disposable clothes used in camping and outdoor activities, cooling or insulation scarves, towels, disposable clothes, bedding, shorts, bras provided to patients or guests in hospitals or accommodation facilities, etc. , Shorts, bathrobes, stockings, headscarves, hair bands, massage clothes, nursing clothes and other materials.

An embodiment of the disposable underwear 10 as a disposable fiber product using the material 1 of the present invention is shown in FIG. 17. The underwear 10 shown in FIG. 17 is a so-called pant-type diaper worn on the abdomen of the user P, and has an abdomen wearing portion 12 composed of the material 1 of the present invention and covering the entire abdomen of the user P and including Lightly squeeze the part of the lower abdomen; and the waist wearing part 14, which is provided on the upper side of the abdominal wearing part 12, and contains elastic members such as rubber, and is worn around the waist of the user P. On the inner side of the abdomen wearing part 12 (the side in contact with the body), an elastic sheet 16 is laid between the front and the back of the abdomen wearing part 12, and installed on the inner side of the elastic sheet 16 (the skin contacting side of the user P) Absorber 18 for upper excretion absorption.

The underwear 10 shown in FIG. 17 has the function as a diaper as described above, and can be used as an adult diaper or as a baby diaper. The diaper using the material 1 of the present invention has a softer touch than conventional diapers, has excellent moisture evapotranspiration, heat dissipation, and moisture permeability, and has better cold and warm sensibility. The underwear 10 using the material 1 of the present invention feels similar to ordinary underwear (shorts) when worn, and has a characteristic that the conventional disposable diaper which is less resistant to use is not available. Therefore, care recipients who are worried about incontinence, women after old birth, or women with menstrual blood leakage can be used as disposable underwear without resistance and with peace of mind. Furthermore, when paper material is used as the fiber material 4 constituting the material 1 of the present invention, the paper material is less charged due to friction, so it can prevent the generation of static electricity during use.

The effect of the material of the present invention constituted as described above and the disposable fiber product constituted by using the material of the present invention will be described. Since the pleated portion 6 is formed in the laminated sheet 30 in the material 1 of the present invention, it has the following effects: the contact with the skin of the body is soft, and the material as a whole can play soft Soft.

In addition, the laminate sheet 30 includes a first fiber-like sheet 2 having air permeability, a second fiber-like sheet 3 having air permeability, and a fiber material 4 having liquid diffusivity as a build-up material, and a fiber layer having air permeability The fiber layers having liquid diffusibility exist adjacent to each other. In this way, a composite layer 31 of "a fiber layer having air permeability and a fiber layer having liquid diffusibility are laminated adjacent to each other" is formed on the laminate sheet 30. When a disposable fiber product composed of the material 1 of the present invention is worn with the first fibrous sheet 2 in contact with the skin side of the body, for example, the sweat generated on the body is passed through the first fibrous sheet 2 It is absorbed into the layer of fibrous material 4 and sweat spreads in the layer of fibrous material 4. The sweat diffused and widely dispersed in the layer evaporates to the outside through the second fibrous sheet 3. Therefore, the sweat does not stay locally at the part in contact with the material, and the sweat is efficiently evaporated.

That is, the composite layer 31 in the laminated sheet 30 exists adjacent to the liquid-permeable functional layer, so the air-permeable functional layer and the liquid-diffusible functional layer interact, and the evapotranspiration efficiency of sweat is caused by the interaction And increase dramatically. That is, since the moisture passage in the air-permeable functional layer and the moisture passage in the liquid-diffusible functional layer are adjacent to each other, the efficiency of sweat absorption and drying is extremely great. Moreover, since the pleated portion 6 formed in the laminate sheet 30 is configured as a pleated portion of a structure in which the uneven surface is formed by the composite layer 31, the breathable functional layer and the liquid diffusive functional layer in the composite layer 31 become uneven The morphology becomes a state with a large surface area. As a result, the evapotranspiration efficiency of sweat from the composite layer 31 is further improved.

The material 1 of the present invention can efficiently diffuse the heat radiated from the body, and has excellent heat dissipation. The heat dissipated from the body is transferred to the layer of the fiber material 4 through the first fibrous sheet 2, and the heat is diffused in the layer of the fiber material 4. The fiber material 4 has the characteristics of liquid diffusibility, and by having liquid diffusibility, it also exhibits thermal diffusivity. The heat diffused and widely dispersed in the layer is diffused to the outside through the second fibrous sheet 3. Therefore, heat does not stay between the body and the material 1, and the heat is efficiently dissipated. Similar to the case of the above-mentioned sweat evapotranspiration, the reason why the material 1 of the present invention can exert such excellent heat dissipation is that: The laminated sheet 30 has a composite layer 31 formed by laminating a fiber layer having air permeability and a fiber layer having liquid diffusibility adjacent to each other, and in the composite layer 31, the air permeable functional layer and the liquid diffuse The sexual function layer plays an interaction.

Furthermore, the material 1 of the present invention is also excellent in moisture permeability. In general, in a laminated sheet formed by laminating a plurality of constituent materials, as the number of constituent layers increases, the moisture permeability tends to decrease. In the present invention, the material layer of the fibrous material 4 is added as compared with a normal laminate sheet formed by laminating two fibrous sheets, so the number of constituent layers is large. However, compared with the conventional products with good moisture permeability, it is surprising that the material 1 of the present invention has not found a decrease in moisture permeability, but is capable of exerting the same moisture permeability as the conventional products with good moisture permeability. Although the number of constituent layers increases, good moisture permeability can be maintained, which is considered to be a unique effect of the present invention. As described above, the reason why this effect can be exerted is that the laminated sheet 30 has a composite layer 31 in which a fiber layer having air permeability and a fiber layer having liquid diffusibility are stacked adjacent to each other. In this composite layer 31, the gas permeable functional layer and the liquid diffusive functional layer interact.

In the case where the fiber material 4 in the material 1 of the present invention is a paper material, if the paper material is subjected to the embossing treatment as described above and the fragility treatment of the paper structure is performed, the interaction between the gas permeable functional layer and the liquid diffusing function further Increased, can further improve the water evapotranspiration, heat dissipation and moisture permeability.

In addition, as an embodiment of the present invention, printing is performed on the material 1, whereby various designs or messages can be expressed efficiently and effectively. The material 1 of the embodiment of the present invention can exert the texture of the raw material of the material itself, and is excellent in overall softness or softness, and can efficiently and effectively impart various functions. Furthermore, the material 1 of the present invention has the advantages that it can be manufactured economically and is relatively easy to manufacture.

Examples

Hereinafter, the present invention will be described in more detail with specific examples of the stretchable composite sheet used in the present invention.

(Example 1)

As the air-permeable sheet, spun-bonded non-woven fabric is used, and as the liquid-diffusible fiber sheet, 100% pulp paper (paper sheet for toilet paper: weight per unit area 18g/m ² ) is used as the thread without printing Shaped elastomer, urethane rubber with a diameter of 620 dtex is used. Between two pieces of non-woven fabric, the paper and the urethane rubber are bonded by a hot-melt adhesive (the total weight of the hot-melt adhesive is 1.2g/m ² ), and the total weight of the obtained is 38g/m ² Sheet material as Example 1.

(Comparative example 1)

Using the same non-woven fabric and urethane rubber as in Example 1, the urethane rubber was sandwiched between the non-woven fabrics by hot-melt adhesive (the total unit weight of the hot-melt adhesive was 1.2 g/m ² ), and the total unit area A sheet material having a weight of 20 g/m ² was used as Comparative Example 1.

(Comparative example 2)

The nonwoven sheet material of the front and back and is spun bonding nonwoven fabric to a total basis weight of nonwoven fabric between the rubber dielectric 620dtex there amine ester diameter rubber is 24g / m ² as a conventional product of Comparative Example 2.

(Comparative example 3)

As a comparative example 3, a sheet material of a conventional product in which the nonwoven fabric on the front side and the back surface is a heat-bonded nonwoven fabric and an urethane rubber with a rubber diameter of 620 dtex interposed between the nonwoven fabrics is 22 g/m ² .

(Comparative example 4)

As the comparative example 4, a sheet material of other conventional products in which the nonwoven fabric on the front and back surfaces is a thermally bonded nonwoven fabric and an urethane rubber with a rubber diameter of 620 dtex interposed between the nonwoven fabrics is 22 g/m ² .

(Comparative example 5)

As a comparative example 5, a sheet material of a conventional product in which the nonwoven fabric on the front and back surfaces is a heat-bonded nonwoven fabric and an urethane rubber having a rubber diameter of 620 dtex and a total basis weight of 20 g/m ² is interposed between the nonwoven fabrics.

First, the sheet materials of Examples 1 and Comparative Examples 1 to 5 were evaluated for water absorption and quick-drying properties (evaporability) and moisture permeability.

First, the water absorption and quick-drying properties (evapotranspiration) were conducted on the evapotranspiration (II) test (Japanese Textile Inspection (BOKEN) Standard BQEA028) to comprehensively evaluate both water absorption and quick-drying properties.

For the sheet materials of Example 1 and Comparative Examples 1 to 5, test pieces with a diameter of about 9 cm were prepared, and the mass (W) of each test piece and petri dish was measured. Next, 0.1 mL of water was added dropwise to the petri dish, and a test piece was placed thereon to measure the mass (W0). It was placed in a standard state (20° C., humidity 65% RH), and the mass (Wt) of each specified time (5 minutes, 10 minutes, and every 10 minutes interval up to 60 minutes) was measured. Based on the measured masses W, W0, and Wt, the following formula (1) is used to calculate the evapotranspiration rate (%) per specific time elapsed.

Evapotranspiration rate (%)={(W0-Wt)/(W0-W)}×100 (1)

The results are shown in Table 1.

According to the results of the evapotranspiration shown in Table 1, in Comparative Examples 3 to 5, the evapotranspiration rate was 20% or less even after 60 minutes elapsed. In Comparative Examples 1 and 2, the evapotranspiration rate did not reach 20 after 20 minutes. %, even after 60 minutes, the evapotranspiration rate is still below 40%. In contrast, in Example 1, after 10 minutes, the evapotranspiration rate exceeds 20%, and after 20 minutes, the evapotranspiration rate exceeds 40%. 30 minutes After that, the evapotranspiration rate exceeds 60%. After 40 minutes, the evapotranspiration rate exceeds 75%. After 50 minutes, the evapotranspiration rate exceeds 85%. After 60 minutes, the evapotranspiration rate exceeds 90%.

In addition, the Japanese Textile Inspection (BOKEN) standard BQEA028 has the following description: As the evaluation standard, the evapotranspiration rate after 20 minutes after the start of the test is preferably 50% in the case of sportswear The above is 40% or more in the case of a woven fabric, and in the case of general use, it is preferably 40% or more in a woven fabric and 30% or more in a woven fabric.

Therefore, since the sheet raw material of Example 1 can obtain an evapotranspiration rate of 40% or more, it can be considered that it can be comfortably worn regardless of sports use or general use.

From the above, it can be seen that the disposable clothing of the present invention using the sheet material of Example 1 has extremely high water absorption and quick-drying properties (evapotranspiration).

Then, the moisture permeability was evaluated by the method A-1 (calcium chloride method) of JIS-L1099 (2012), and the moisture permeability (g/m ² .h) was determined.

In addition, the moisture permeability is defined as a value obtained by converting the mass (g) of water vapor passing through the fiber product at a specified temperature and humidity into 1 m ² × hour per hour of the fiber product.

According to 6.3 of JIS L0105 (fabric-shaped sample and its test piece), test pieces were collected from the sheet raw materials of Example 1 and Comparative Examples 1 to 5.

Prepare devices and materials such as the moisture-permeable cup, constant temperature and humidity device, circular plate, and hygroscopic agent required by the calcium chloride method, and conduct experiments.

First, add about 33g of hygroscopic agent to a moisture-permeable cup heated to about 40°C in advance, vibrate the moisture-permeable cup to make the moisture-absorbent uniform, and then smooth the surface with a spatula, using a round plate Adjust so that the distance between the hygroscopic agent and the lower surface of the test piece becomes 3 mm.

Then, for the sheet materials of Example 1 and Comparative Examples 1 to 5, according to 6.3 of JIS L0105 (cloth-shaped sample and its test piece), three test pieces each having a diameter of about 70 mm were collected.

Place the surface of each test piece toward the side of the hygroscopic agent and place it in a concentric circle with respect to the moisture-permeable cup, and install the gasket and ring in sequence, and fix it with the butterfly nut. Then, install the side The test body was produced by sealing with vinyl adhesive tape. The test body is placed at a position where the wind speed of the upper part of about 10 mm on the test piece in the thermostat-constant humidity device with a temperature of 40°C±2°C and a humidity of (90±5)%RH does not exceed 0.8m/s. After 1 hour, the test body was taken out, and the mass (a1) was immediately measured to 1 mg. After the measurement, the test body was placed in the same position of the constant temperature-humidity device again, and the test body was taken out after 1 hour, and the mass (a2) was immediately measured to 1 mg. Based on the measured masses a1 and a2, the moisture permeability PA1 (g/m ² .h) was calculated using the following formula (2).

Permeability PA1(g/m ² .h)=(a2-a1)/SA1 (2)

In formula (2), a2-a1 is the amount of change in mass per hour of the test body (g/h), and SA1 is the moisture permeability area (m ² ).

The test results are expressed by taking integers in accordance with the JIS Z8401 rule of three times (rounding method). Table 2 shows the obtained results.

From the results of moisture permeability shown in Table 2, it is clear that in Comparative Examples 2, 3, and 5, the moisture permeability is 500 g/m ² . Below h, 563g/m ² in Comparative Example 1. h, the permeability in Comparative Example 4 is 526g/m ² . h. On the other hand, in Example 1, it was 564 g/m ² . h, higher than the comparative example.

From the above, it can be seen that the functional material raw material of the present invention is very stable and has good moisture permeability.

Then, for Example 1 and Comparative Examples 1 to 5, the moisture permeability evaluation results and 20 Table 3 shows the evaluation results of the evapotranspiration after minutes and after 60 minutes.

From the moisture permeability evaluation results and evapotranspiration evaluation results shown in Table 3, it is clear that the functional material raw materials of the present invention of Example 1 are better in moisture permeability than the functional material raw materials of Comparative Examples 1 to 5. , And evapotranspiration, showing higher moisture permeability and higher evapotranspiration rate.

Based on the above, the effects of the functional material raw materials for disposable products and disposable textile products of the present invention are obvious.

Furthermore, of course, the present invention is not limited to the embodiments described above, and includes all embodiments that can achieve the purpose of the invention.

Then, the contact cold feeling (cold feeling) and the wet contact cold and warm feeling (stickiness when sweating) of the sheet raw material with paper interposed between the nonwoven fabrics and the paper raw material with no paper interposed between the nonwoven fabrics were tested.

(Examples 2 to 5)

Using the same nonwoven fabric, paper, hot melt adhesive, and urethane rubber as in Example 1, the sheet material was adjusted. The paper used in Examples 2 and 3 was subjected to an embossing treatment as many times as shown in Table 4 using a pair of flat rolls. Table 4 shows the weight per unit area of the paper used, the total weight per unit area of the hot melt adhesive, and the total weight per unit area of the sheet material. For the raw materials of these sheets, the following methods were selected to measure the cold feeling of contact and the cold and warm feeling of wet contact. Contact with cold feeling, wet contact with cold and warm feeling, and contact The result of the value of the ratio of the cold touch feeling to the wet touch cold warm feeling (contact cold feel/wet touch cold warm feeling) is shown in 5.

Contact cold feeling: Contact cold feeling means the degree of coldness and refreshing feeling when wearing, and is measured by the following method using a precision rapid thermal physical property measuring device (KES-F7 Thermo Lab II manufactured by Kato Tech Co., Ltd.).

The test piece (6cm×6cm) cut from the sheet material was placed on a bottom plate at 20°C. Heat the hot plate with precision thermal sensor to 40℃, place the hot plate on the test piece at 20℃, and calculate the contact cold sense value (qmax) according to the heat dissipation behavior measured by the thermal sensor of the hot plate.

Wet contact cold and warm feeling: The wet contact cold and warm feeling indicates the degree of stickiness when sweating, and is performed using a precision rapid thermal physical property measuring device (KES-F7 Thermo Lab II manufactured by Kato Tech Co., Ltd.) and using the following method Determination.

The test piece (6 cm×6 cm) cut from the sheet raw material was made to absorb 80 g/m ² of water to provide water, and the test piece was placed on a bottom plate at 20°C. Heat the hot plate with precision thermal sensor to 40℃, place the hot plate on the 20℃ test piece, and calculate the wet and cold contact temperature value based on the heat dissipation behavior measured by the thermal sensor of the hot plate (wet- qmax).

(Comparative example 6)

The same sheet material as Comparative Example 2 was used, and the contact cold feeling and the wet contact cold and warm feeling were tested in the same manner as in Examples 2 to 5. The results are shown in 5.

(Comparative example 7)

The same sheet material as Comparative Example 4 was used, and the contact cold feeling and the wet contact cold and warm feeling were tested in the same manner as in Examples 2 to 5. The results are shown in 5.

(Comparative Example 8)

The same sheet raw material as Comparative Example 3 was used, and the contact cold feeling and the wet contact cold and warm feeling were tested in the same manner as in Examples 2 to 5. The results are shown in 5.

(Comparative Example 9)

The same sheet raw material as Comparative Example 5 was used, and the contact cold feeling and the wet contact cold and warm feeling were tested in the same manner as in Examples 2 to 5. The results are shown in 5.

2: The first fibrous sheet

3: 2nd fibrous sheet

4: Fiber material

4a: printed layer

6: pleated part

6a: convex part

6b: recess

7: then layer

Claims (8)

A material for disposable fiber products, which is composed of a laminate sheet including a first fibrous sheet having air permeability, a second fibrous sheet having air permeability, and interposed in the first fibrous sheet A fibrous material having liquid diffusibility between the sheet and the second fibrous sheet, and is formed by laminating the first fibrous sheet, the second fibrous sheet and the fibrous material together with an elastic member; the laminated sheet Each of the first fibrous sheet, the fibrous material, and the second fibrous sheet is joined to each other, and in the laminate sheet, the elastic member is joined along its longitudinal direction; the laminate sheet has The elastic member forms the pleated portion of the uneven surface; the concave portion and the convex portion of the uneven surface of the pleated portion are formed by combining the first fibrous sheet, the fibrous material adjacent to the first fibrous sheet, and The layer formed by stacking the second fibrous sheet adjacent to the fibrous material; and the test for the disposable fiber product material has evapotranspiration (II) test (Japan Textile Inspection (BOKEN) standard BQEA028). After 20 minutes, the evapotranspiration rate is 40% or more. For example, the material for disposable fiber products in the first scope of the patent application has the evapotranspiration rate of 90% or more in the evapotranspiration (II) test (Japanese Textile Inspection Standard BQEA028) after 60 minutes after the start of the test. A material for disposable fiber products as claimed in item 1 or 2 of the patent application, wherein the first fibrous sheet and the fibrous material are intermittently joined via the elastic member. The material for disposable fiber products as described in item 1 or 2 of the patent application, wherein the second fibrous sheet and the fiber material are intermittently joined. The material for disposable fiber products as claimed in item 1 or 2 of the patent scope, wherein the elastic member is composed of a plurality of linear elastic bodies having elasticity, and the plurality of linear elastic bodies are provided with a space The partitions are arranged in the width direction of the laminate sheet, and are joined between the first fibrous sheet and the fibrous material. For example, the materials for disposable fiber products in item 1 or 2 of the patent application, wherein the above-mentioned fiber materials are composed of raw materials having liquid diffusibility and liquid permeability. For example, the material for disposable fiber products in item 1 or 2 of the patent application, wherein the above-mentioned fiber material is composed of paper material. The material for disposable fiber products as claimed in item 1 or 2 of the patent application, wherein the fiber material has an adhesive agent penetrating portion formed by infiltrating the adhesive agent for the bonding.

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