# US 10,309,056 B2 · Method for heat transfer onto textiles and expansible multilayer complex therefor

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- Number: US 10,309,056 B2
- Document ID: US10309056B2
- Status: Granted
- Kind: B2
- Application number: 15/566,807
- Filed: 2016-04-14
- Published: 2018-04-19
- Granted: 2019-06-04
- Earliest claimed: 2015-04-16
- Assignees: Chomarat Textiles Industries
- Applicants: Chomarat Textiles Industries
- Inventors: Dominique Devidal
- Web page: https://patentgrep.com/patent/US10309056B2

## CPC

- D06Q 1/12: by transferring a chemical agent or a metallic or non-metallic material in particulate or other form, from a solid temporary carrier to the textile {(for uniform treatment D06M23/02)}
- B32B 5/02: characterised by structural features of a {fibrous or filamentary} layer {(layer formed of metallic wires B32B15/02; layer formed of natural mineral fibres B32B19/02; layer formed of wood fibres B32B21/02)}
- B32B 5/022: {Non-woven fabric}
- B32B 5/18: characterised by features of a layer {of} foamed material
- B32B 5/20: foamed in situ
- B32B 7/04: Interconnection of layers
- B32B 7/06: permitting easy separation
- B32B 27/065: {of foam}
- B32B 27/36: comprising polyesters
- B32B 27/40: comprising polyurethanes
- B32B 29/00: Layered products comprising {a layer of} paper or cardboard
- B44C 1/162: {Decalcomanias with a transfer layer comprising indicia with definite outlines such as letters and with means facilitating the desired fitting to the permanent base}
- B44C 1/1712: {Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive}
- B32B 2255/10: on synthetic resin layer or on natural or synthetic rubber layer
- B32B 2255/26: Polymeric coating
- B32B 2262/0276: Polyester fibres
- B32B 2262/062: Cellulose fibres, e.g. cotton
- B32B 2262/08: Animal fibres, e.g. hair, wool, silk
- B32B 2264/00: Composition or properties of particles which form a particulate layer or are present as additives
- B32B 2266/0235: Vinyl halide, e.g. PVC, PVDC, PVF, PVDF
- B32B 2307/30: having particular thermal properties
- B32B 2307/41: Opaque
- B32B 2307/732: Dimensional properties
- B32B 2307/75: Printability
- D06Q: DECORATING TEXTILES (textile threads, filaments, yarns or tow, glued on macromolecular material D06N7/00)
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B44C: PRODUCING DECORATIVE EFFECTS (processes for applying liquids or other fluent materials to surfaces, in general B05D; shaping of plastics or substances in a plastic state B29C; printing processes to produce transfer pictures B41M3/12; thermographic duplication or marking methods B41M5/00); MOSAICS; TARSIA WORK (imitation of mosaic or tarsia work patterns B44F11/04); PAPERHANGING {(labels G09F; multi-step processes for making paper labels or tags B31D1/02)}

## Abstract

The invention relates to a method allowing the heat transfer of a multilayer complex (1) onto the front face of a textile material (13), said multilayer complex comprising a layer (5) containing polyurethane and a superimposed expansible layer (6) containing a gelled vinyl polychloride plastisol and a non-expanded heat-expansion agent. To this end: the multilayer complex is placed on the visible front face of the textile material, the polyurethane-containing layer being the furthest away from the textile material so as to form, after the transfer, a visible decorative layer on the front face of the textile material; and temperature and pressure conditions are applied so as to cause the adhesion of the multilayer complex to the visible front face of the textile material and the simultaneous expansion of the expansible layer. A three-dimensional edge effect can be obtained using different color layers.

## Claims

### Claim 1

Heat transfer method for transferring onto a textile (13) a multilayer complex (1) formed of a plurality of superposed thermoplastic layers (4), including a layer (5) based on polyurethane, and an expandable layer (6) containing a gelled polyvinyl chloride plastisol (11) and a non-expanded heat-expandable agent (12), in order to form a marking or a decoration on said textile (13), said method comprising the steps of:
placing the multilayer complex (1) on the visible front face of the textile (13), the polyurethane-based layer (5) of the complex (1) being the layer that is the furthest away from the textile (13) so that, after transfer, the layer (5) constitutes a visible decorative layer on the visible front face of the textile (13); and
applying temperature and pressure conditions that cause the multilayer complex (1) to adhere to the visible front face of the textile (13) and simultaneously cause the expandable layer (6) of the complex (1) to expand.

### Claim 2 (depends on 1)

Transfer method according to claim 1, wherein a multilayer complex (1) is used in which the polyurethane-based layer (5) and the expandable layer (6) are of two different colors so as to create a border effect around the decorative layer, visible on the front face of the textile (13) once the expandable layer (6) has expanded.

### Claim 3 (depends on 1)

Transfer method according to claim 1, wherein, before the multilayer complex (1) is placed on the visible front face of the textile (13), it is prepared such that it has the shape or the motif of the marking or of the decoration to be formed on the textile (13).

### Claim 4 (depends on 3)

Transfer method according to claim 3, wherein the step of preparing the multilayer complex (1) comprises at least one operation chosen from among the following operations: printing a motif on the polyurethane-based layer (5), cutting out, or waste stripping.

### Claim 5 (depends on 1)

Transfer method according to claim 1, wherein said temperature and pressure conditions are obtained by means of a heater platen press for performing transfer onto textiles.

### Claim 6 (depends on 1)

Transfer method according to claim 1, wherein:
said temperature and pressure conditions correspond to a temperature lying in the range 160° C. to 170° C. and to a pressure in the vicinity of two bars, and
the temperature and the pressure are applied for a duration lying in the range 10 seconds to 30 seconds.

### Claim 7 (depends on 1)

Multilayer complex (1) that is heat-transferable onto the visible front face of a textile (13) by a transfer method according to claim 1, said complex being formed of a plurality of superposed thermoplastic layers (4) and comprising:
a polyurethane-based layer (5) designed to be the visible upper decorative layer, once the multilayer complex (1) has been transferred onto the visible front face of the textile (13); and
an expandable layer (6), containing a gelled polyvinyl chloride plastisol (11) and a non-expanded heat-expandable agent (12),
wherein the polyurethane-based layer (5) and the expandable layer (6) are of two different colors so as to create a border effect around the decorative layer (5) once the expandable layer (6) has expanded.

### Claim 8 (depends on 7)

Multilayer complex (1) according to claim 7, wherein the polyurethane-based layer (5) is at least one of opaque, dyed, or printable.

### Claim 9 (depends on 7)

Multilayer complex (1) according to claim 7, wherein the heat-expandable agent (12) comprises microspheres constituted by thermoplastic casings enclosing a gas.

### Claim 10 (depends on 7)

Multilayer complex (1) according to claim 7, wherein the expansion temperature range of the heat-expandable agent (12) comprises a heat transfer temperature at which the multilayer complex (1) is transferred onto a textile (13).

### Claim 11 (depends on 7)

Multilayer complex (1) according to claim 7, wherein the complex (1) further comprises one or more layers (4) chosen from among at least one of: a heat-fusible layer (8), a backing layer (7), or an opacifying layer.

### Claim 12 (depends on 7)

Multilayer complex (1) according to claim 7, wherein the complex (1) comprises a heat-fusible layer (8) based on either a co-polyester or on polyurethane.

### Claim 13 (depends on 7)

Multilayer complex (1) according to claim 7, wherein the complex (1) comprises a backing layer (7) based on polyester and treated to be non-stick.