# US 11,896,070 B2 · Method of collectively preparing clothing having moisture permeable and water proof properties and clothing prepared using the method

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- Number: US 11,896,070 B2
- Document ID: US11896070B2
- Status: Granted
- Kind: B2
- Application number: 17/476,970
- Filed: 2021-09-16
- Published: 2023-03-02
- Granted: 2024-02-13
- Earliest claimed: 2021-08-24
- Assignees: Bristex Co., Ltd.
- Applicants: Bristex Co., Ltd.
- Inventors: Keun Hun Chang
- Web page: https://patentgrep.com/patent/US11896070B2

## CPC

- A41D 31/102: Waterproof and breathable
- A41D 27/245: {made by welding or gluing (joining of plastics by welding or gluing B29C65/00; sewing machines for concurrently making thread and welded seams D05B17/00; thermal or chemical fixing of seams and hems D06M)}
- A41H 43/04: Joining garment parts or blanks by gluing or welding (mending garments by adhesives or adhesive patches A41H27/00) {; Gluing presses}
- B32B 5/026: {Knitted fabric}
- B32B 5/16: characterised by features of a layer formed of particles, e.g. chips, powder {or granules (layer formed of natural mineral particles B32B19/00; layer being formed of wood fibres, chips or particles B32B21/02)}
- B32B 7/06: permitting easy separation
- B32B 7/12: using interposed adhesives or interposed materials with bonding properties
- B32B 27/12: next to a fibrous or filamentary layer
- B32B 37/10: characterised by the pressing technique, e.g. using action of vacuum or fluid pressure
- B32B 37/1207: {Heat-activated adhesive (B32B37/04 takes precedence)}
- A41D 31/10: Impermeable to liquids, e.g. waterproof; Liquid-repellent
- A41D 2300/52: made by welding or gluing
- A41D 2500/10: Knitted
- A41D 2500/52: in sheet form
- B32B 2037/1215: {Hot-melt adhesive}
- B32B 2307/7265: Non-permeable
- B32B 2437/00: Clothing
- A41D: OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41H: APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM

## Abstract

Provided are a method of collectively preparing moisture-permeable waterproof clothing and clothing prepared thereby. The method includes a step of cutting a fabric substrate and a film into a plurality of pieces, wherein the plurality of pieces includes at least a first and second group, wherein the first group includes a first substrate and film, and the second group includes a second substrate and film; a step of forming a first laminate by processing the first group; a step of forming a second laminate by processing the second group; a step of forming a seam by connecting the first and second substrate; a step of covering a seam area with the second film and then covering the second film with the first film; and a step of finally laminating the first and the second laminate along with the seam.

## Claims

### Claim 1

A method of collectively preparing moisture-permeable waterproof clothing, the method comprising:
a step of cutting a fabric substrate and a moisture-permeable waterproof film into a plurality of pieces according to an apparel design, wherein the plurality of pieces are at least divided into a first piece group and a second piece group, wherein the first piece group comprises a first fabric substrate and a first moisture-permeable waterproof film, and the second piece group comprises a second fabric substrate and a second moisture-permeable waterproof film;
a step of forming a first laminate by processing the first piece group, wherein the step of forming the first laminate comprises a step of attaching a film-type adhesive having a predetermined width to one end of a first surface of the first moisture-permeable waterproof film, a step of laminating a release paper having a predetermined width on one end of a first surface of the first fabric substrate, a step of laminating the first moisture-permeable waterproof film on the first fabric substrate such that the first surface of the first moisture-permeable waterproof film and the first surface of the first fabric substrate face each other, a step of partially and temporarily adhering the first moisture-permeable waterproof film and the first fabric substrate to each other by partial heat-pressing without an adhesive, and a step of removing the release paper to form a first laminate, wherein the release paper prevents the first fabric substrate and the first moisture-permeable waterproof film from temporarily adhering by at least a width of the release paper in the step;
a step of forming a second laminate by processing the second piece group, wherein the step of forming the second laminate comprises a step of laminating the second moisture-permeable waterproof film on the second fabric substrate such that a first surface of the second moisture-permeable waterproof film and a first surface of the second fabric substrate face each other and a step of temporarily adhering the second moisture-permeable waterproof film and the second fabric substrate to each other by heat-pressing without an adhesive to form a second laminate;
a step of forming a seam by arranging the first laminate and the second laminate such that the first fabric substrate of the first laminate and the second fabric substrate of the second laminate face each other and then connecting the first fabric substrate and the second fabric substrate;
a step of covering an area of the seam with the second moisture-permeable waterproof film of the second laminate and then covering the second moisture-permeable waterproof film with the first moisture-permeable waterproof film of the first laminate; and
a step of finally laminating the first laminate and the second laminate along with the seam,
wherein (1) the step of forming a second laminate further comprises a step of laminating a release paper having a predetermined width on one end of the first surface of the second fabric substrate before the step of laminating the second moisture-permeable waterproof film on the second fabric substrate, and (2) the step of temporarily adhering the second moisture-permeable waterproof film and the second fabric substrate to each other is a step of forming the second laminate by temporarily adhering the second moisture-permeable waterproof film and the second fabric substrate to each other by heat-pressing and then removing the release paper, and
wherein in the step of forming the second laminate, unlike in the step of forming the first laminate, the film-type adhesive is not attached onto the second moisture-permeable waterproof film.

### Claim 2 (depends on 1)

The method of claim 1, wherein the fabric substrate is treated with a durable water repellent agent, wherein the fabric substrate is free of perfluorocarbons (PFCs), an initial water repellency of the fabric substrate measured according to AATCC 22 is 90% (grade 4) or higher, and a water repellency of the of the fabric substrate measured according to AATCC 22 after 10 times of washing is 80% (grade 3) or higher.

### Claim 3 (depends on 1)

The method of claim 1, wherein the moisture-permeable waterproof film comprises a release layer, a membrane layer, a base dot layer, and a hot-melt dot adhesive layer that are sequentially laminated in this order.

### Claim 4 (depends on 3)

The method of claim 3, wherein a thickness of the membrane layer is in a range of about 5 μm to about 100 μm, a basis weight of the hot-melt dot adhesive layer is in a range of about 5 g/m2 to about 20 g/m2, and the base dot layer and the hot-melt dot adhesive layer constitute a double-dot layer having a unit density in a range of about 30 dots/cm2 to about 220 dots/cm2 and a linear density in a range of about 13 dots/inch to about 45 dots/inch.

### Claim 5 (depends on 3)

The method of claim 3, wherein the membrane layer comprises polyurethane, polyester, polyamide, polytetrafluoroethylene, or a combination thereof.

### Claim 6 (depends on 3)

The method of claim 3, wherein the moisture-permeable waterproof film has a moisture-permeability measured according to JIS L 1099 B-1 in a range of about 3,000 g/m2/24 hr to about 50,000 g/m2/24 hr and a water pressure resistance measured according to JIS L 1092 B in a range of about 5,000 mmH2O to about 20,000 mmH2O.

### Claim 7 (depends on 1)

The method of claim 1, wherein the moisture-permeable waterproof film comprises a knitted layer, an adhesive layer, a membrane layer, a base dot layer, and a hot-melt dot adhesive layer that are sequentially laminated in this order.

### Claim 8 (depends on 7)

The method of claim 7, wherein a basis weight of the knitted layer is in a range of about 15 g/m2 to about 45 g/m2, a thickness of the membrane layer is in a range of about 5 μm to about 100 μm, a basis weight of the hot-melt dot adhesive layer is in a range of about 5 g/m2 to about 20 g/m2, and the base dot layer and the hot-melt dot adhesive layer constitute a double dot layer having a unit density in a range of about 30 dots/cm2 to about 220 dots/cm2 and a linear density in a range of about 13 dots/inch to about 45 dots/inch.

### Claim 9 (depends on 7)

The method of claim 7, wherein the moisture-permeable waterproof film has a moisture-permeability measured according to JIS L 1099 B-1 in a range of about 3,000 g/m2/24 hr to about 50,000 g/m2/24 hr and a water pressure resistance measured according to JIS L 1092 B in a range of about 5,000 mmH2O to about 20,000 mmH2O.

### Claim 10 (depends on 1)

The method of claim 1, wherein the film-type adhesive comprises a release paper layer and an adhesive layer laminated on the release paper layer.

### Claim 11 (depends on 1)

The method of claim 1, wherein the partial heat-pressing in the step of temporarily adhering the second moisture-permeable waterproof film and the second fabric substrate to each is performed using an iron or a roller type fusing machine.

### Claim 12 (depends on 1)

The method of claim 1, wherein the seam in the step of forming a seam by arranging the first laminate and the second laminate are formed by stitching.

### Claim 13 (depends on 1)

The method of claim 1, wherein the finally laminating process in the step of finally laminating the first laminate and the second laminate along with the seam is performed by a permanent adhering method using a heat press machine.

### Claim 14 (depends on 1)

A moisture-permeable waterproof clothing prepared using the method of claim 1, wherein the clothing is free of a separate seam sealing tape other than the film-type adhesive.