KR100500762B1 - Hygienic panties - Google Patents

Abstract

The present invention provides an elastic nonwoven fabric formed on the surface of the nonwoven fabric by imparting an elastic polymer coating agent on a portion or the entire surface of one side of the extensible nonwoven fabric in a thin film form; It is a menstrual panty provided with the said elastic body nonwoven network or including a sanitary napkin attachment part provided in the said panty. According to the present invention provides a sanitary panties that can be disposed with the sanitary napkins used, and can separate the panties and sanitary napkins to provide a sanitary panties that can be used in combination with one or more sanitary napkins, good adhesion and elasticity It provides a menstrual panty that can be worn in or without a garment panty, provides a sanitary napkin attachment by hooks, and provides a breathable elastic nonwoven fabric for the manufacture of disposable panties.

Description

Menstrual Panties {Hygienic panties}

The present invention relates to menstrual panties, more particularly menstrual panties made as an elastic nonwoven composite.

Conventional sanitary napkins include absorbents for absorbing secretions, and waterproof films surrounding the absorbents; It consists of a perforated film that delivers secretions to the absorbent material. The adhesive layer is provided on the back of the conventional sanitary napkin and the body secretion is collected in the absorbent material by exposing the adhesive layer when the sanitary napkin is used and attaching it to the user's clothing (usually panties). As such, the sanitary napkin is worn by attaching to the adhesive clothing, when the secretion leaks into the clothing, the clothing is changed and the dirty clothing is washed. The following problems are raised in the use of the sanitary napkin. Sanitary napkins are new at any time for one-time use, but the clothing is used repeatedly. If there is a leakage of discharge when going out, the sanitary napkin can be replaced but the clothing cannot be replaced until returning home. To alleviate this inconvenience, the sanitary napkin should be provided as a disposable with the sanitary napkin. Another problem is that the adhesive layer provided on the sanitary napkin is covered with release paper and peels off the release paper when used. The adhesive layer exposed for use should be attached to the user's clothing, but it is not suitable for wearing on the weak adhesive clothing and the adhesion depends on the texture of the clothing surface. This is inconvenient for the user to limit the choice of clothing.

Technologies around nonwovens that give new functions to nonwovens are expanding the application of nonwovens. This is because nonwoven fabrics are much cheaper materials than woven fabrics and have softer properties than woven fabrics. Nonwovens are non-tissue fibers that do not have elongated properties and shrinkage elasticity. If the nonwoven fabric is provided with shrinkage elasticity, preserves the inherent breathability of the nonwoven fabric, and is provided at a low cost, it can be used as a material for manufacturing various personal goods. When the nonwoven fabric is observed with a magnifying glass, non-tissue fibers adhere to the truss type to suppress contraction and elongation. In order to provide extensibility to such inelastic nonwoven fabrics, it is necessary to modify the truss fiber bonds by first contracting the nonwoven fabrics. The necking amount of the nonwoven fabric is about half of the width of the given nonwoven fabric. Necking nonwovens are disclosed in US Pat. No. 4,962,122 as a document containing increasing nonwovens information. In addition, the nonwoven fabric may be wrinkled to reduce its width, or a sharing may be added to give the nonwoven fabric extensibility. Given only the inelastic extensibility described above for nonwovens, this function would be largely classified as a defect of nonwovens. If you want to use the expanding nonwoven fabrics for personal care products such as clothing parts, adhesives for pain treatment, diapers, it is necessary to combine shrinkage elasticity with the stretching properties of the nonwoven fabric. In addition, Korean Patent Application Publication No. 2001-23954 discloses an elastic film laminate configured to improve elasticity, body fit, and the like, which is used in a laminate, underwear, etc. of an extensible nonwoven fabric, an elastic film, and an elastic intermediate nonwoven web. Disclosed is a disposable undergarment constructed by using a nonwoven fabric having a stretch elasticity in a arc and bonding an absorbent pad having stretch elasticity to an inner surface of the fabric.

The conventional means for attaching a sanitary napkin and panties is to apply an adhesive on the back of the sanitary napkin to attach it to the inner surface of the panties. These adhesives are sticky and inconvenient for consumers to avoid and avoid them.When adhesives are adhered to each other, the sanitary napkins cannot be used, and when attached to panties, they must be attached at the correct position. There is a problem that is not attached.

The present invention is to provide a menstrual panties made of an elastic nonwoven composite. The present invention provides a menstrual panties that can be disposed of together with the sanitary napkin used. The present invention is to provide a sanitary panty that can be separated from the panties and sanitary napkins can be used in combination with one or more sanitary napkins. The present invention is to provide a menstrual panties that can be used in the existing clothing panties or without the clothing panties because the adhesion and elasticity is good. The present invention includes the provision of a breathable preserved elastic nonwoven fabric for the manufacture of disposable panties.

Magic Hook is a synthetic filament yarn hook that is collected on a substrate. When it is bonded with a nonwoven fabric, the filament yarn hooks penetrate between the nonwoven fibers and generate practical adhesive force as a sanitary napkin attachment means. The present invention is to provide a menstrual panties including a magic hook as a sanitary napkin attachment means.

The present invention embodies an elastic nonwoven composite, that is, an elastic nonwoven fabric, an elastic polymer used to impart elasticity to an extensible nonwoven fabric, a method of imparting an elastic polymer to an nonwoven fabric with an elastic nonwoven fabric, and a method of laminating an elastic nonwoven composite. , The present invention proposes a configuration for applying elastic nonwoven composite to menstrual panties. The present invention will also cite materials that impart far infrared radiation to the elastomer.

1. Nonwoven

The first and second axial contractions are imparted to the nonwoven fabric to impart extensibility. If the width is reduced in the width direction, the extensibility to stretch to the original width is inherent. If the length is reduced in the longitudinal direction, the extensibility to stretch to the original length is inherent. Other extensible nonwovens include nonwoven fabrics pleated or shredded in nonwovens. Nonwoven fabrics capable of imparting stretchability in the present invention include polypropylene thermal bond nonwoven fabrics, polypropylene spunbond nonwoven fabrics, polypropylene melt blown nonwoven fabrics, bicomponent nonwoven fabrics of polypropylene and polyethylene, polypropylene melt blown nonwoven fabrics and poly Nonwovens, polyethylene nonwovens, nylon nonwovens, polyester nonwovens, bicomponent yarns with polypropylene and polyethylene, polypropylene yarns, polyethylene yarns, viscose yarns, polyester yarns and nylon It can be used by giving extensibility to nonwoven fabric having a capacity of 5 ~ 180g / ㎡ including nonwoven fabric, airlaid nonwoven fabric, air through nonwoven fabric, spunlace nonwoven fabric, cotton yarn nonwoven fabric made by mixing one or more of the yarns. In consideration of price, function and the like in the present invention, polypropylene spunbond nonwoven fabric or nonwoven fabric provided with extensibility to polypropylene spunbond and melt blown nonwoven fabric formed of a multilayer is suitable. If the nonwoven fabric is stretchable, it does not need to be given separately. Conventionally, nonwoven fabrics having stretchability are expensive nonwoven fabrics.

2. Elastic Polymer

The elastic polymer coating of the present invention may be prepared from a hot melt coating or a fat soluble coating and a water soluble coating. The fat-soluble coating agent is an elastic copolymer including an olefin monomer such as ethylene-vinyl acetate copolymer, natural rubber, styrene, and olefin monomers such as ethylene, propylene, butene and at least one solvent such as toluene, ethyl acetate and methyl-ethyl-ketone. It is manufactured by melting materials including polyurethane and synthetic rubber. The materials are polymers that retain elasticity and are thermally adhesive when laminated with a nonwoven fabric.

The water-soluble elastomeric polymer coating agent is one in which an elastomeric polymer is dispersed in water or an alcohol; Polyester-based coating agent dispersed in water or alcohol; Nitrocellulose-based coatings dispersed in water or alcohol; Among the polyamide-based coatings dispersed in water or alcohol, materials having elasticity are selected and used. In water-soluble coatings, the polymer dispersed in the coating solution should select a polymer having good thermal adhesion when laminated with the nonwoven fabric.

The hot melt coating polymer may be an elastic polymer used in the fat-soluble coating or the water-soluble coating. The hot melt coating agent is applied to the nonwoven fabric in the form of roll coating, extrusion coating or spray coating on the nonwoven fabric.

In the present invention, the elastic coating agent should have thermal adhesiveness with the nonwoven fabric in the state of the elastic nonwoven fabric after coating. If there is a lack of such a secondary adhesive function, a nonwoven fabric and an adhesive for adhesion are used separately, which increases the production cost.

In the present invention, a kneader, ribbon blender or other stirrer is used as the coating production equipment.

The elastic coating agent may be used by further adding one or more materials selected from fragrance, deodorant, far-infrared radiant, degradable material, starch, organic material of chitosan, organic / inorganic antimicrobial agent.

3. Coating of elastomeric polymer

The elastic polymer coating agent is applied to the surface of the nonwoven fabric in a thin film to form an elastic nonwoven fabric on the surface of the nonwoven fabric. The coating capacity to give the coating agent is such that the capacity of the elastomer is 0.5 ~ 50g / ㎡ according to the viscosity of the coating agent.

Elastomeric polymer coating means may be carried out by any one of a roll coating, dipping coating, spray coating by the nozzle, extrusion coating, an electrodeposition coating to form a coating film on the release paper and then heat-bonded with a nonwoven fabric.

4. Lamination of Elastic Nonwoven Composite

The elastic polymer included in the elastic nonwoven fabric imparted to the stretchable nonwoven fabric of the present invention has a thermal adhesiveness of 120 degrees Celsius or less, so that the elastic nonwoven fabric and the elastic nonwoven fabric, or the elastic nonwoven fabric and the nonwoven fabric can be easily laminated.

4 is an apparatus diagram for thermally bonding two elastic nonwoven composites 10 to abut the elastic nonwoven fabric 12. Specifically, two sheets of the elastic nonwoven composite fabric 10 having the elastic nonwoven fabric 12 formed on the stretchable nonwoven fabric 11 are heated and pressed between the heating roll 61 and the compressed rubber roll 62 to be laminated. The lamination state is sandwiched between the two sides of the non-woven stretchable nonwoven fabric 11 in which the breathable elastic nonwoven fabrics 12 and 12 coincide with the elongation axis (the main elongation axis, or the orthogonal elongation axis, if the main elongation axis is present). The elastic nonwoven composite body 10a is inserted.

5 is a device diagram for laminating the stretchable nonwoven fabric 11 on one surface of the elastic nonwoven fabric composite 10. Specifically, the elastic nonwoven fabric composite fabric 10 and the elastic nonwoven fabric 11 having the elastic nonwoven fabric 12 formed on the stretchable nonwoven fabric 11 are heated and pressed between the heating roll 61 and the compressed rubber roll 62 to be laminated. . The laminated state is the elastic nonwoven composite body 10b in which the breathable elastic nonwoven fabric 12 is sandwiched between two sides of the extensible nonwoven fabric 11 on which the stretching axis is aligned.

5. Materials to give additional functions

1) Addition of far infrared radiation function

The elastic nonwoven fabric of the present invention is mainly used as a material for producing personal goods. It is known that the addition of far infrared radiation to a nonwoven fabric improves skin affinity.

The present invention may add materials to improve the skin affinity to the elastomeric coating composition. Materials for improving skin affinity are inorganic materials including elvan, biotite, talc, inorganic antibacterial agent, barium sulfate, jade powder, zeolite, activated carbon, silica and charcoal powder.

2) addition of deodorizing or fragrance function

 The present invention may include a deodorant or a odorant in the elastic polymer coating composition to add a deodorant function or a odor function. Examples of the deodorant are inorganic deodorants including elvan, biotite, talc, and inorganic antibacterial agents, and absorbents of zeolite, activated carbon, silica gel and silica.

6. Preparation of menstrual panties

The present invention prepares skin-adhesive menstrual panties from the elastic nonwoven composite 10 or the sandwich elastic nonwoven composite 10a and 10b prepared as described above. An example of the design of the elastic nonwoven composite pant considering the stretch axis of the present invention is cited in FIG. Fig. 6 (A) Outline of the panties and Fig. 6 (B) panties, the front plate a and the back plate b of the panties are in the transverse (X-axis) direction of the nonwoven fabric, and the base plate c is the vertical extension in the Y (Y) direction. Axis) direction.

7 (A) and (B) of the present invention, the physiological panties are manufactured in a body-tight manner by installing the body portion 101, the leg insertion portion 102 and the elastic band 103 as an elastic nonwoven composite. The dashed arrows in Fig. 7 (B) indicate the connecting portions of the panties shown in exploded view for convenience. In the present invention, the sanitary napkin 200 is attached to the sanitary napkin adhered part 110 of the panty 100. Attaching means is to attach the pressure-sensitive adhesive layer 210 on the back of the sanitary napkin 200 to the adhered portion 110 of the panties 100 as shown in FIG. The adhered portion 110 is configured to simply attach the pressure-sensitive adhesive layer 210 of the sanitary napkin 200 on the nonwoven fabric; Alternatively, an adhered portion formed by attaching a film to which a pressure-sensitive adhesive adheres well to a nonwoven fabric, or a region in which a coating agent is applied so that the pressure-sensitive adhesive adheres well.

The present invention menstrual panties and elastic nonwoven composite panties 100; A panty having a sanitary napkin attaching part 110 for attaching a sanitary napkin to the panty; The sanitary napkin attachment part 110 and the sanitary napkin 200 for attaching the sanitary napkin to the panty may be manufactured as a panty.

Figure 9 shows another embodiment sanitary napkin attachment device of the present invention. In FIG. 9, the magic hook 111 was attached to the sanitary napkin attachment part. This attachment device can omit the installation of the sanitary napkin 200 pressure-sensitive adhesive layer, and when the direct contact of the nonwoven fabric of the outer surface of the sanitary napkin directly to the magic hook 111 is a hook hooked into the non-woven fabric and the panties and sanitary napkin is attached.

When the hook stand of Figure 9 is adopted as the sanitary napkin attaching means, the sanitary napkins are not attached to each other, and the stickiness, which is to be avoided by the user, can be excluded from the sanitary napkin product, thereby improving the image of the product and simplifying the use. In the case of using the hook stand of FIG. 9 as a means for attaching the sanitary napkin, if the magic hook is attached to the menstrual panties, the sanitary napkin is not enough to expose the back nonwoven fabric as it is, and there is no need to install an adhesive, so the manufacture of the sanitary napkin is simplified and the product is clean. Lose

10 is a modification of the sanitary napkin attachment means. In FIG. 10, the hook base 212 is attached to the back of the sanitary napkin 200 as an attachment device, and the product is in direct contact with the hook base 212 directly on the nonwoven surface of the portion 112 of the nonwoven panty. Digging into the panties and sanitary napkin is attached.

When the menstrual panties of the present invention are worn, the panties are tightly attached to the body and the sanitary napkins are worn together with the panties. Sanitary napkins are attached to the proper position in advance, but the user can move and use the location, replace the sanitary napkins to reuse the panties, and discard the panties and sanitary napkins after use. In addition, the menstrual panties of the present invention can be worn on the normal men's panties over the menstrual panties because of good body adhesion and breathability smoothly.

Example 1

30 parts by weight of an elastic polymer (shell company: KRATON D1102) was dissolved in 70 parts by weight of toluene to prepare an elastic coating agent. The elastic coating prepared was repeatedly coated three times on the entire necking nonwoven fabric in a gravure roll. The capacity of the elastomeric nonwoven network after 9 coating dryings was 9 g / m 2.

Example 2

The elastic nonwoven fabric of Example 1 was laminated by joining the elastic nonwoven fabric so that the elongation axis was matched and heat-pressing it in the lamination roll. The heating temperature of the paper roll was 150 degrees Celsius and the pressing force of the rubber roll was 45 kg. The capacity of the elastic nonwoven network after lamination was 18 g / m 2.

Example 3

The panties of FIG. 6 were prepared from the elastic nonwoven fabric of Example 2. Fig. 6A is a schematic perspective view of the panty and Fig. 6B is a schematic view of the developed panties. Zones a and b of the panties matched the main elongation axis of the nonwoven fabric in the X-axis direction, and zone c matched the main elongation axis of the nonwoven fabric in the Y-axis direction.

Example 4

Menstrual panties were prepared by attaching a sanitary napkin to the panties produced in Example 3.

Example Product Effect

1) The elastic nonwoven fabric of Example 1 was cut to 30 cm in length and 30 cm in length in the elongation width direction, and the length of 30 cm was increased to 38 cm and then returned to its original state. When the elastic nonwoven fabric of Example 1 was cut into a 5 cm square and stretched to 8 cm in the direction of the elongation axis, the elastic nonwoven fabric was shrunk again to 6 cm in length. When the air was blown with the elastic nonwoven fabric in the mouth, the air passed through the elastic nonwoven fabric.

2) The elastic nonwoven fabric of Example 2 was cut to 30 cm in length and 30 cm in length in the elongation width direction, and the length of 30 cm was increased to 38 cm and then returned to its original state. When the elastic nonwoven fabric of Example 1 was cut into a 5 cm square and stretched to 8 cm in the direction of the elongation axis, the elastic nonwoven fabric was shrunk again to 6 cm in length. When the air was blown with the elastic nonwoven fabric in the mouth, the air passed through the elastic nonwoven fabric.

3) The panties of Example 3 were used by 10 women and the fit was listened to. Panties and sanitary napkins were well adhered to the skin of the 10 women who wore them, and they felt little heterogeneity when they were moving. They breathe well and breathe well and have good skin affinity. As a result of Example 4, it was confirmed that the practical use that can be used as disposable men and women adult panties in addition to menstrual panties.

As described above, the present invention provides a menstrual panty made of an elastic nonwoven composite, provides a menstrual panty that can be discarded with the sanitary napkin used, and can separate the panties and sanitary napkins so that they can be used in combination with one or more sanitary napkins. Providing menstrual panties, good adhesion and elasticity, providing menstrual panties that can be worn or used without existing clothing panties, providing a sanitary napkin attaching device by hooks, preserving breathability for manufacturing disposable panties It is to provide an elastic nonwoven fabric.

1 is an embodiment gravure roll coating device

Figure 2 is an embodiment dipping coating device

Figure 3 is another embodiment coating device

Figure 4 is an embodiment of the lamination device of the elastic nonwoven fabric and elastic nonwoven composite

Figure 5 is a lamination device of the elastic nonwoven fabric and the stretchable nonwoven composite

Figure 6 is a structure of an embodiment panties made of the present invention elastic nonwoven composite

Figure 7 (A) is an embodiment of the menstrual panties, perspective view (B)

8 is a configuration diagram of the attachment portion of the menstrual panties

9 and 10 are diagrams illustrating an attachment part of another embodiment of the menstrual panties.

Explanation of Major Symbols

10 is an elastic nonwoven composite, 11 is an elastic nonwoven fabric, 12 is an elastic nonwoven fabric, 100 is a menstrual panty, 210 is an attachment, 200 is a sanitary napkin, 210 is an adhesive layer

Claims (14)

delete delete An elastic nonwoven composite is prepared by applying an elastic polymer coating layer to an extensible nonwoven fabric and a panty made of an elastic nonwoven composite, wherein the menstrual panty is made by attaching a flexible plastic film to a sanitary napkin attachment portion of the elastic nonwoven composite panty. An elastic polymer coating layer is applied to an extensible nonwoven fabric to produce an elastic nonwoven composite, and in panties made of an elastic nonwoven composite, a menstrual panty configured to attach a hook to a sanitary napkin attaching portion of the elastic nonwoven composite panty and attach it to the nonwoven fabric behind the sanitary napkin. . An elastic nonwoven composite is prepared by applying an elastic polymer coating layer to an extensible nonwoven fabric, and in a panty made of an elastic nonwoven composite, the elastic nonwoven composite elastic nonwoven composite composite pant has a sanitary napkin attachment part as a nonwoven surface and a hook is attached to the back of the sanitary napkin. A menstrual panty configured to attach a sanitary napkin to the nonwoven surface held on the panty. The menstrual panty according to any one of claims 3 to 5, wherein the front plate and the back plate coincide with the main extension axis in the transverse direction, and the bottom plate coincides with the main extension axis in the longitudinal direction. delete delete delete The menstrual panty according to any one of claims 3 to 5, wherein a capacity of the elastic nonwoven fabric applied to the nonwoven fabric is 0.5 to 50 g / m 2. delete delete The method of any one of claims 3 to 5, wherein at least one of a fragrance, a deodorant, a far-infrared spinning agent, a decomposable material, starch, an organic substance of chitosan, and an organic / inorganic antimicrobial agent is added to the coating agent for the elastic polymer coating layer composition. Menstrual panties characterized in that the elastic polymer coating. delete