JPH01280001A - Protective article for clothing and production thereof - Google Patents

Abstract

PURPOSE: To provide a relatively lightweight and relatively thin protecting article for clothes so as to be comfortably worn by a wearer having an absorbing medium, a water-impermeable outer cover arranged adjacently to the absorbing medium and a masking surface for irregularly scattering rays of light on the exposed side of the cover. CONSTITUTION: This protecting article for clothes such as a perspiration remover 2 for the clothes is composed by installing a water-permeable backing 4 on the body side, a water-impermeable outer cover 6 and an absorbing medium 8 provided between the backing 4 and the outer cover 6. A masking surface 20 capable of performing both or either of absorption of incident light on the outer cover 6 to some extent and irregular scattering of reflected light from the outer cover 6 in order to suppress the geometrical or irregular light reflection from the perspiration remover 2 for the clothes is provided on the outer surface of the outer cover 6.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a protective article for clothing, and in particular to a clothing product that can protect clothing from stains, but that cannot be visually recognized through the surface of the clothing. Regarding disposable sweat protectors.

[Conventional technology]

There are various types of sweat guards for clothing, including disposable types and reusable types.

Generally, sweat guards for clothing include a water-impermeable outer cover and an absorbent medium attached to the cover. In the past, these sweat guards were generally made using woven materials, cellulosic materials, or both. Recently, sweat repellents with thermoplastic materials have also appeared.

[Problem to be solved by the invention]

Although current clothing sweat guards have improved functionality over previous sweat guards, they still have several inherent disadvantages. For example, a sweat guard whose absorbency is increased by attaching an absorbent body becomes bulky, and when wearing clothing with such a sweat guard attached, the underarm area feels uncomfortable.

The problem of being bulky and uncomfortable to wear is that the bulk causes the armpits to swell.
Also, because of this, other people can see the sweat shield you put on your armpits. This conspicuousness is one disadvantage of this type of sweat shield for the wearer. therefore,
The most important thing is that the sweat guard is inconspicuous.

Another problem with current clothing sweat guards is that the surface profile of their outer surface, typically a water-impermeable outer cover, is visible through the wearer's clothing from outside. This is because the contours of the geometric shapes may be visible from the outside of the garment, or may be visible through certain designs or patterns of the outer cover.

As with any type of underwear, there is a strong desire for sweat protection for clothing that is comfortable for the wearer and whose shape is invisible to others.

[Means to solve the problem]

Accordingly, it is an object of the present invention to provide a protective article for clothing that is relatively lightweight and relatively thin so that it can be comfortably worn by the wearer. Because the protective garment article of the present invention is relatively thin, it does not create bulges or contours on the surface of the garment that would be easily seen through the garment by others.

It is also an object of the present invention to provide a protective article for clothing with a surface that hides the protective article from being visible through it from the outside of the garment. This surface is
In order to prevent the protective article from creating visually perceptible geometric patterns or shapes through the garment, it scatters the light rays reflected from its surface irregularly.

The protective article for clothing according to the present invention is for protecting clothing from dirt, etc., and this protective article comprises an absorbent medium,
and a water-impermeable outer cover disposed adjacent to the absorbent medium. Also, on the exposed side of the cover, by irregularly scattering the light rays reflected from the surface,
A unique surface is provided that allows the protective article to be visually hidden from the outside of the garment.

A method of manufacturing a protective article for protecting clothing from stains, etc. according to the present invention includes the steps of providing a water-impermeable outer cover and providing an absorbent medium adjacent to the outer cover. There is.

and forming a masking surface on the exposed side of the cover that irregularly scatters light rays reflected from the surface and visually conceals the protective article from being visible through it from outside the garment. Also includes stages.

〔Example〕

FIGS. 1 to 4 show a garment shield 2 according to the present invention. This clothing shield 2 includes a water-permeable body side lining 4, a water-impermeable outer cover 6, and an absorbent medium 8 provided between the lining 4 and the cover 6.

The backing 4 on the body side has a basis weight (per square yard) of approximately 0.
They are made from a water permeable thermoplastic material of 3 to 1.5 ounces and generally have a fabric thickness of about 10 to 20 mils. The body side lining 4 is made of a hydrojet-entangled nonwoven fabric layer made of thermoplastic material.
1 ayer ) is preferred. This thermoplastic material may be comprised of polyethylene or polypropylene, and more preferably polyester. By going through the water-flow process, a tangled nonwoven fabric made of thermoplastic microfibers with increased softness compared to other processes can be obtained. These types of microfibers refer to small diameter fibers having a diameter of about 100 microns or less, preferably about 0.5 to 50 microns, and more preferably about 4 to 40 microns. . The water drop process involves the use of an air forming process in which fiber bonding is achieved through fiber entanglement caused by the water jet.

The water runoff process results in a very soft and silky thermoplastic fibrous layer. One type of non-woven fabric using the water-flow method is the Delaware
, E.I. DuPont, located in Wilmington.
There is Sontara (5ontara) manufactured by the Textile Business Division.

Other materials from which the bodyside backing 4 may be made include spunbond thermoplastic materials, such as spunbond polyethylene or spunbond polypropylene.

The bodyside lining 4 may further comprise a nonwoven web or sheet of polyolefin fibers, such as polypropylene, polyester, polyethylene, rayon, or the like. The backing 4 may also be a non-woven web of synthetic fibers, natural fibers or blends thereof, or of a perforated plastic film, a lined plastic webbing material or a scrim material.

The absorption medium 8 is preferably made of a thermoplastic material treated with a surfactant to render it hydrophilic.

Preferably, the absorption medium 8 also comprises polypropylene produced by melt-blowing. Other materials from which the absorbent medium 8 can be made include ccform materials, which are blends of wood bulb fluff and thermoplastic fibers optionally with superabsorbent components. The preferred melt-blown polypropylene may also include superabsorbent components to enhance its absorbency. The absorbent medium 8 has a basis weight (per square meter) of about 25 to 250 grams, more preferably about 50 to 150 grams per square meter.
It has a basis weight (per square meter) in grams. Surfactants for treating thermoplastic fibers include, for example, American Cyanimid.
Aerosol manufactured by Aerosol
OT), Rohm and Haas
Triton X-102 (manufactured by Haas)
Any suitable surfactant can be used, such as Triton X-102) and the like. The amount of surfactant is generally about 0.1 to 1.0 based on the total weight of the absorbent medium 8.
weight percent.

If necessary, the density or layering of the absorbent medium 8 can be selectively varied, for example by increasing the absorption concentration or amount in the central part of the sweat shield 2.

Absorbent medium 8 may also include other agents, such as fragrances, antimicrobial materials, odor neutralizing materials, and antiperspirant materials. Examples of these types of agents include, for example, fungicides, fungicides, and metal compounds of zinc, copper, aluminum, or cobalt. Other drugs include quaternary ammonium compounds,
Includes sorbic acid, citrate, pH altering agent, and activated carbon.

According to the invention, the absorbent medium 8 can be, for example, a cellulosic material such as an electroformed core made of wood pulp fibres, a non-woven web made of synthetic or natural fibres, a composite made of melt-blown fibers mixed with cellulosic material. or other suitable absorbent materials, such as a blend of cellulosic material containing staple fabric fibers such as rayon. As mentioned above, the absorbent medium 8 can also include superabsorbent material. In this case, the superabsorbent materials include grafted starches, starch polyacrylic acids, grafted methyl cellulose, modified polyvinyl alcohols, and polyacrylates that are crosslinked to form absorbent polymers. The absorbent medium 8 can also be made of foam-type materials, such as polyester, polyurethane, and ethylene vinyl acetate containing polyester or polyurethane.

Preferably, the outer cover 6 comprises a film of thermoplastic material having a thickness of about 0.3 to 1.3 mils. One side of the outer cover 6 can be provided with an adhesive for adhering the absorbent medium 8 to this cover 6 . This adhesive is preferably a soft type adhesive that does not reduce the softness or flexibility of the garment shield 2. An example of this type of adhesive is New J.
ersey ) ) City of Bridgewater
National Starch Compa located in
Dispo-Mel (Dispo-Mel) manufactured by
t) 34 5517, or the state of Wisconsin (W
isconsin), Plutafield City (Bro
Findly Adhesives (Findly A) manufactured by Findly Adhesives located in
dhesive) 952-383. This adhesive is applied in any suitable manner to one side of the outer cover 6 and then around the absorbent medium 8 to the outer circumferential portion 1 of the outer cover 6.
The absorbent medium 8 is bonded to the adhesive so that 0 remains. Thereafter, the body side backing 4 is placed on the absorbent medium 8 and spread over the surface of the absorbent medium 8 to provide a backing outer circumferential portion 12 in contact with the aforementioned outer circumferential portion 10 via an adhesive. do. Both outer circumferential portions 10.12 each have a circumferential end portion 14.16, as shown in FIG. In the manufacturing process described above, the outer cover 6 and the bodyside backing 4 can also be replaced. An adhesive can then be provided in a suitable manner on one side of the backing 4, and then the absorbent medium 8 is glued to the adhesive to form one outer peripheral part.

Thereafter, the outer cover 6 is placed over the absorbent medium 8, spread over its surface and glued to provide the other outer circumference.

The outer circumferential portions 10.12 are then interconnected via a suitably flexible adhesive along a bonding line 18 (see FIG. 3) spaced inwardly from the circumferential end portions 14.16, as previously described. Glued. The inward positioning of the bonding line 18 leaves the circumferential edge portions 14,16 free and apart, resulting in a soft, silky edge for the garment guard 2. The connecting line 18 also functions as a water-impermeable edge for the clothing shield 2. This joining line 18 extends approximately 0.5 to 5 mm inwardly from the peripheral end portion 14.16.
．． Preferably, they are spaced apart by a distance of 0 mm. However, the peripheral part 10.12 can also be glued or glued along the entire surface area between the edge of the absorbent medium 8 and the peripheral end part 14.16. Join line 1
Although 8 has been described as a line of adhesive provided between the outer circumferential portion 10 and the outer circumferential portion 12, the bonding of both 10 and 12 can also be performed by thermal bonding of the bonding line 18.

As previously mentioned. The outer cover 6 can comprise a film of thermoplastic material. In this case, thermoplastic materials include, for example, polyethylene, polypropylene, or polyethylene copolymers such as ethylene vinyl acetate, ethylene methyl acrylate, ethylene ethyl acrylate, polyvinyl chloride, and nylon.

One of the unique features of the invention is that the exposed side of the outer cover 6 is provided with a masking surface in contact with the clothing. Current garment protections may be visually perceptible from the outside of adjacent garments due to their relatively bulky state or exterior color, particular shape, or particular pattern. If a garment shield is inherently visible from the outside only because of its bulk, visibility through the garment can be reduced by reducing the thickness of the sweat shield. However, even if the thickness of the sweat guard is reduced or the geometric design or pattern of the exposed surface is changed, the contour or pattern of the garment guard can still be visually discerned through the garment.

Visibility through clothing is due to the contour or pattern of the sweat guard 2 partially or totally reflecting light through the clothing. Without being bound to any particular theory, in order to suppress geometric or regular light reflections from clothing shields, the present invention has been based on previous research to absorb a certain amount of light incident on the outer cover 6. The outer cover 6 has a masking surface 20 that serves to scatter reflected light beams irregularly from the outer cover 6.
It is provided on the outer surface of the

Masking surface 20 is constituted by a spunbond thermoplastic layer bonded to the exposed surface of outer cover 6. At this time, the exposed surface is the surface facing the absorbing medium 8. By completing the spunbond process, a coherent nonwoven fabric in which thermoplastic fine fibers are irregularly distributed is obtained. Spunbond thermoplastic microfibers correspond to small diameter fibers having a diameter of about 100 microns or less, preferably about 10 to 50 microns, and more preferably about 12 to 30 microns. Spunbond microfibers are made by threading and extruding molten thermoplastic material through a plurality of fine capillaries with spinnerets.

At this time, the diameter of the extruded filament is rapidly reduced, for example, by a known stretching mechanism or other known spunbonding mechanism. A description of the spunbond process is disclosed in US Pat. No. 4,340,563. The contents of this patent are incorporated herein by reference.

The outer cover 6 is preferably a two layer composite comprising ethylene methyl acrylate extruded onto a spunbond polypropylene layer.

This ethylene methyl acrylate layer can have any suitable color, with a beige color being particularly preferred. Also, the spunbond polypropylene is preferably white, and the spunbond polypropylene has a color of about 0.
．． It can have a basis weight (per square yard) of 4 to 0.8 ounces.

FIG. 1 is a photograph of the masking surface 20 of the outer cover 6. Although the depiction quality in Figure 4 is somewhat poor, Figures 1 and 4 show that white spunbond polypropylene is irregularly dispersed on the dark or beige surface of the thermoplastic film layer. is clearly visible. It can be seen that when this outer cover 6 is placed on the back of the garment, its surface is visually masked. This masking effect occurs because the spunbond polypropylene has an irregular pattern that randomly scatters the reflected light from the outer cover 6. In this way, the reflected light rays are irregularly scattered so that no geometric or regular contours, patterns, or shapes are reflected through the garment or visually perceptible. The wearer is thus assured that the sweat guard is invisible to others.

The masking surface 20 is subjected to processes other than the spunbond process,
For example, it can be provided by an intermittent melt blowing process or a water drop process.

For applying or attaching the garment shield 2, the masking surface 20 is provided with a transparent adhesive 25, shown dotted, and a release strip 22 (see FIG. 6). FIG. 6 shows the release strip 22 in two parts, with one part partially removed to expose the transparent adhesive 25. FIG. The transparent adhesive material 25 is
For example, Minnesota, St. Paul.

H,B, Fuller Company located in Paul
) Manufactured by H.M. 1972 (HM1972), or New Jersey,
Bridgewater
National Starch Company (Nati) located in
Dispo-Melt manufactured by Onal 5Tarch Company 34-
A soft melt adhesive such as 2841 is preferred.

This adhesive 25 covers the entire surface area, the elongated strip area,
Alternatively, it can be provided in another divided area or selected area. The release strip 22 is preferably a silicone resin-coated cellulose release paper that adheres to the transparent adhesive 25 and does not degrade or reduce its adhesive properties upon removal.

Referring back to FIGS. 2 and 4, the sweat shield 2 for clothing generally includes a pair of slits 24 provided on opposite sides thereof. As shown in Figure 2, each slit 2
4 has a length of about 1/4 to 1 inch, and as shown in FIG. 2 shows the position at which the clothing sweat guard 2 is folded.

In addition to folding, it can also be sandwiched with sweat shield 2, embossed, or heat-sealed.

Both slits 24 facilitate placement of the sweat guard 2 within the garment by easily folding the garment sweat guard 2 along the slits 24 and holding it in place on the garment. As can be seen from FIG. 2, the upper part, which is about 1/3 of the sweat guard 2 for clothing, has an oval shape that is different from the lower part, which is about 2/3 of the sweat guard 2. This design results in an anatomical configuration of the sweat guard that conforms accordingly to the armpit seam area of the garment, as shown in FIG. As can be seen from Fig. 2, the uppermost oval part of the sweat guard 2 generally has a rounder shape, that is, a bulging shape, than the lowest oval part of the sweat guard 2. I am doing it. These two oblong shaped parts are joined along the fold line 26. Further, as can be seen from FIG. 2, this fold line 26 is dimensioned by a predetermined distance downward from the upper end of the sweat guard 2 along the longitudinal center line. This distance is approximately 25 mm of the total length of the sweat guard 2 measured along the vertical center line.
It accounts for about 45%. Therefore, the sweat guard 2 is
As shown in the figure, it is symmetrical about the vertical front-rear axis and asymmetrical about the transverse axis. This asymmetrical shape of the sweat shield 2 allows the embodiment of the present invention to have an anatomical configuration. Sweatproof 2
The anatomical shape or configuration of the garment is such that it not only conforms accordingly to the armpit seam area, but also provides maximum protection between the garment and the body.

The total weight of the clothing sweat guard 2 is approximately 1.5 to 5 grams.
Preferably, the total thickness is about 0.75 to 3.0 millimeters. The clothing sweat guard 2 is also designed to be disposed of after use.

The types of stains that can be prevented by using the sweat guard 2 include stains caused by perspiration and stains left behind by deodorants and antiperspirants.

Although we have so far described the use of the clothing sweat guard 2 primarily to protect underarm sweat, the sweat guard 2 can also be used in other fields, such as wound dressings and incontinence products, for example. be able to. The masking effect provided by the present invention can also be applied to other articles and products where it is desirable to be visually masked.

Although the present invention has been described above with reference to preferred embodiments,
It will be understood that various further modifications may be made to the invention. Such applications are therefore in accordance with the general principles of the invention and within the scope of known or customary practice in the art to which the invention pertains and is included without departing from the scope of the appended claims. It is intended to cover any modifications, uses, or adaptations from the present disclosure, including various attempts.

[Effects of the Invention] As described above, according to the present invention, it is possible to realize a protective article for clothing such as a sweat shield that can be comfortably worn and is invisible from the outside.

[Brief explanation of the drawing]

1 is a photograph showing a plan view of the masking surface side of a preferred embodiment article according to the present invention; FIG. 2 is a photograph showing a top view of the jacket side lining side of a preferred embodiment article of the present invention; FIG. Line 3- shows the state seen from the direction of the arrow in Figure 2.
3 is a cross-sectional view, FIG. 4 is a plan view showing the masking surface of a preferred embodiment article according to the invention, and FIG. FIG. 6 is a perspective view of the preferred embodiment article showing the resulting condition; FIG. 6 is a perspective view of the preferred embodiment article with a portion of the release paper removed; FIG. It is a front view which shows the state which matched the area|region. 2... Sweat shield for clothing, 4... Water-permeable vest side lining, 6... Water-impermeable outer cover, 8... Absorption medium, 20... Masking surface. 14-sided fortune telling (inner f-me: ゛・gusara (7) FIG, 1 FIG, 4 FIG, 5 FIG, 7 FIG, 6

Claims (39)

[Claims] 1. An absorbent medium, a water-impermeable cover provided adjacent to the absorbent medium, and a concealing means for visually concealing the cover, the garment being visually hidden through the garment. Protective articles. 2. A protective garment article according to claim 1, wherein the cover is a thermoplastic film material and the concealment means is a spunbond thermoplastic material. 3. 3. A protective garment article according to claim 2, wherein the spunbond thermoplastic material comprises spunbond polypropylene or spunbond polyethylene. 4. 3. A protective garment article according to claim 2, wherein the spunbond thermoplastic material is white. 5. 3. A protective garment article according to claim 2, wherein said thermoplastic film material is ethylene methyl acrylate. 6. 3. A protective garment article according to claim 2, wherein said thermoplastic film material has a thickness of 0.3 to 1.5 mils. 7. 2. The spunbond thermoplastic material has a weight of 0.4 to 0.8 ounces per square yard.
Protective articles for clothing as described in . 8. A protective garment article according to claim 1, comprising a water permeable bodyside lining comprising a thermoplastic material. 9. 9. The protective article for clothing according to claim 8, wherein the thermoplastic material constituting the vest side lining comprises polypropylene, polyethylene, or polyester. 10. 9. The protective article for clothing according to claim 8, wherein the thermoplastic material constituting the body side backing comprises a thermoplastic material layer formed by a water drop process. 11. 11. The protective clothing article of claim 10, wherein the water-drop thermoplastic material comprises polypropylene, polyethylene, or polyester. 12. 9. The protective article for clothing according to claim 8, wherein the thermoplastic material constituting the vest side lining comprises spunbond polypropylene or spunbond polyethylene. 13. 9. The protective garment article of claim 8, wherein said vest side lining has a weight of 0.3 to 1.5 ounces per square yard. 14. 9. A protective garment article according to claim 8, wherein said vest side lining has a thickness of 10 to 20 mils. 15. A protective garment article according to claim 1, wherein the absorbent medium comprises a thermoplastic material. 16. A protective garment article according to claim 1, wherein the absorbent medium comprises a cellulosic material. 17. Claim 15 or 1 further comprising a superabsorbent material.
6. The protective article for clothing according to 6. 18. 16. A protective garment article according to claim 15, wherein the thermoplastic material comprising the absorbent medium comprises melt blown polypropylene or melt blown polyethylene. 19. A protective garment article according to claim 1, wherein the absorbent medium comprises a blend of fluff and thermoplastic material. 20. The absorption medium is 25 to 25 per square meter.
A protective clothing article according to claim 1, having a weight of 0 grams. 21. A protective garment article according to claim 1, wherein the absorbent medium comprises an antiperspirant material. 22. Claim 1 wherein said absorbent medium comprises a deodorant material.
Protective articles for clothing as described in . 23. Claim 1 wherein said absorbent medium comprises an antimicrobial material.
Protective articles for clothing as described in . 24. The backing and the cover are coupled to each other along a bonding line spaced inwardly from the circumferential edges of the backing and the cover, and the circumferential edges of the backing and the cover are spaced apart. 9. A protective clothing article according to claim 8, wherein the protective article is free to provide additional flexibility and softness along its edges. 25. 25. The garment protection article of claim 24, wherein the bond line is spaced inwardly from the circumferential edge at a distance of 0.5 to 3 millimeters. 26. Claim 1, wherein at least the cover has a pair of slits cut into it and is creased or folded at the slits so as to be properly positioned in the armpit seam area of the garment. Protective articles for clothing as described. 27. visually concealed through clothing by comprising the steps of: providing an impermeable cover; providing an absorbent medium in contact with the cover; and forming a concealing surface on an exposed side of the cover. A method for manufacturing a protective article for clothing, characterized in that: 28. 28. The method of claim 27, wherein the step of forming a hidden surface comprises spunbonding a thermoplastic material and bonding the spunbond thermoplastic material to a film of thermoplastic material. 29. The spunbond thermoplastic material is a spunbond thermoplastic material.
29. The method of claim 28, comprising polypropylene or spunbond polyethylene. 30. 29. The method of claim 28, wherein the thermoplastic film comprises ethylene methyl acrylate. 31. 28. The method of claim 27, comprising the step of providing a bodyside backing proximate the absorbent medium. 32. 32. The step of preparing the body side padding comprises hydroprocessing a thermoplastic material.
The manufacturing method described in. 33. 33. The method of claim 32, wherein the water-flow-formed material comprises polyester. 34. 28. The method of claim 27, wherein the absorbent medium comprises a thermoplastic material. 35. 28. The method of claim 27, wherein the absorbent medium comprises a cellulosic material. 36. The step of preparing the absorbent medium includes arranging the absorbent medium inward from edges of the backing and the cover;
32. The method of claim 31, comprising providing respective outer peripheral portions of the backing and the cover around the absorbent medium. 37. 37. The method of claim 36, wherein the backing and the cover are bonded to each other along a bond line between their respective outer peripheral portions. 38. The bond line is spaced inwardly from respective circumferential edges of the outer circumferential portions of the backing and the cover, such that the circumferential edges of the backing and the cover are spaced apart from each other and The manufacturing method according to claim 37, which is free. 39. 28. The method of claim 27, further comprising cutting into at least the cover a pair of slits that are generally opposed to each other to facilitate folding.