Heat transfers with minimal transfer marking on performance fabrics

Patent metadata

Field	Value
Publication number	US-2016009124-A1
Application number	US-201414583928-A
Country	US
Kind code	A1
Filing date	Dec 29, 2014
Priority date	Jan 6, 2014
Publication date	Jan 14, 2016
Grant date	—

Abstract

Heat transfers are provided that have indicia for labeling or enhancing the appearance of performance fabric material, such as apparel including sportswear fabrics with elastomeric characteristics. The label assembly includes a support portion with a label carrier layer and a release coating, along with a transfer portion over the support portion release coating that includes an ink design and a hot melt adhesive layer. The hot melt adhesive layer securely transfers the ink design to the fabric at relatively low temperature and pressure conditions for a relatively low dwell time.

First claim

1 . A heat transfer label suitable for labeling performance fabrics with minimal transfer marking, comprising:
a. a support portion having a label carrier and a non-marking release layer; and b. a transfer portion, said transfer portion being positioned over said support portion release layer for transfer of the transfer portion from the support portion to a performance fabric under conditions of heat and pressure for a given dwell time, said transfer portion comprising: i. a hot melt adhesive layer having a first surface and a second surface, the first surface being exposed to permit its direct contact with a performance fabric to be labeled, and ii. an ink design, said ink design is in contact and in conformity with the second surface of the hot melt adhesive layer, said ink design exhibits recoverable stretch properties; and c. said hot melt adhesive layer securely adheres the heat transfer label to performance fabrics at relatively low transfer temperature, pressure and dwell time while minimizing or substantially eliminating transfer marks on the performance fabrics.

2 . The heat transfer label of claim 1 , wherein the hot melt adhesive layer includes a thermoplastic or a thermoplastic elastomer based polymer, or a mixture of both, with a transfer enhancing agent.

3 . The heat transfer label of claim 1 , wherein the non-marking release of the label carrier is sized and shaped in substantial conformance with the size and shape of the ink design, thereby substantially eliminating ghost image generation by the release upon heat transfer application.

4 . The heat transfer label of claim 1 , wherein the release coating of the label carrier is sized and shaped in substantial conformance with the size and shape of the ink design and the hot melt adhesive layer, thereby substantially eliminating ghost image generation by the release coating upon heat transfer application.

5 . The heat transfer label of claim 1 , wherein the non-marking release is non-transferrable.

6 . The heat transfer label of claim 1 , wherein said release of the label carrier generally coincides with the size and shape of the label carrier.

7 . The heat transfer label of claim 1 , wherein said hot melt adhesive layer is selected from the group consisting of: a thermoplastic elastomer including TPU's or polyacrylates; a thermoplastic copolymer including PES, PA; and a transfer enhancing agent including solid or liquid plasticizers or tackifiers; and combinations thereof.

8 . The transfer enhancing agent in claim 7 is a solid state plasticizer or tackifier, or combinations therefore

9 . The heat transfer label of claim 7 , wherein the thermoplastic elastomer is a TPU of between about 15 and about 85 parts; the hot melt copolymer is PA or PES of between about 0 and about 80 parts; the transfer enhancing agent is a solid state plasticizer of between about 2 and about 40 parts by weight of solids.

10 . The heat transfer label of claim 1 , wherein said hot melt adhesive layer securely adheres the heat transfer label to performance fabrics at a bonder application temperature of below about 140° C., bonder application pressure of below about 1 Bar and for a bonder application dwell time of less than 15 seconds.

11 . The heat transfer label of claim claim 1 , wherein the support portion consists of a film or paper substrate with a non-marking release on at least 1 substrate surface. The non-marking release includes the following two types—(1) a non-transferrable release, (2) a shaped hot melt or hot split release.

12 . The heat transfer label of claim 11 wherein the non-transferrable release of is a printable silicone.

13 . The heat transfer label of claim 11 wherein the hot melt or hot split release is a polyeloefin (PE, PP) or a polyamide.

14 . The heat transfer label of claim 11 , wherein the support portion also has an anti-blocking release on the opposite side of the non-marking release.

15 . The heat transfer label of claim 11 wherein, the carrier substrate is a heat stable plastic film (PET, PC) or paper.

16 . The heat transfer label of claim 1 , wherein the ink design layer comprises an ink layer having a maximum release force of between 0.1 and 2.0 N/in from the release layer.

17 . The heat transfer label of claim 1 , wherein the hot melt adhesive layer has a maximum release force of between 0.1 and 2.0 N/in from the release layer.

18 . The heat transfer label of claim 1 , wherein the ink design layer comprises an ink layer having a maximum release force of between 0.1 and 2.0 N/in from the release layer, and the hot melt adhesive layer has a maximum release force of between 0.1 and 2.0 N/in from the release layer.

19 . The heat transfer label of claim 15 , wherein the release layer surface has a surface tension above about 25 dynes/cm.

20 . A heat transfer label suitable for labeling performance fabrics with minimal transfer marking, comprising:
a. a support portion having a label carrier layer and a release layer; and b. a transfer portion, said transfer portion being positioned over said support portion release layer for transfer of the transfer portion from the support portion to a performance fabric under conditions of heat and pressure for a given dwell time, said transfer portion comprising: i. a hot melt adhesive layer having a first surface and a second surface, the first surface being exposed to permit its direct contact with a performance fabric to be labeled, the hot melt adhesive layer includes a mixture of a thermoplastic polymer with a thermoplastic elastomer and a transfer enhancing agent, and ii. an ink design layer, said ink design layer is in contact and positioned in conformance with the second surface of the hot melt adhesive layer, said ink design layer exhibits recoverable stretch properties; c. the release layer of the label carrier is sized and shaped in substantial conformance with the size and shape of an image delineated by said ink design layer, thereby substantially eliminating ghost image generation by the release coating upon heat transfer application; and d. said hot melt adhesive layer securely transfers the heat transfer label to performance fabrics at relatively low transfer temperature, pressure and dwell time while minimizing or substantially eliminating transfer marks on the performance fabrics.

21 . The heat transfer label of claim 20 , wherein the release coating of the label carrier is sized and shaped in substantial conformance with the size and shape of said hot melt adhesive layer, thereby contributing to substantially eliminating ghost image generation by the release coating upon heat transfer application.

22 . The heat transfer label of claim 20 , wherein said hot melt adhesive layer is selected from the group consisting of: a thermoplastic elastomer including TPU or polyacrylate elastomers; a thermoplastic polymer including PES, PA; and a hot melt flow enhancing resin including solid or liquid plasticizers or tackifiers; and combinations thereof.

23 . The heat transfer label of claim 21 , wherein the ink design layer comprises an ink layer having a release force of between 0.1 and 2.0 N/in from the release coating layer, and the hot melt adhesive layer has a release force of between 0.1 and 2.0 N/in from the release coating layer.

24 . A heat transfer label suitable for labeling performance fabrics with minimal transfer marking, comprising:
a. a support portion having a label carrier laye

Assignees

• Avery Dennison Corp

Inventors

• Chiao Yi-Hung
• Dinescu Liviu
• Spendlove Andrew
• Yttri Johannes
• Tanrikulu Osman N
• O'Brien Ben T

Classifications

• B41M5/41

  Base layers {supports or substrates} · CPC title

• B44C1/172 Primary

  Decalcomanias provided with a layer being specially adapted to facilitate their release from a temporary carrier · CPC title

• B41M5/42

  Intermediate, {backcoat}, or covering layers {(B41M5/405 takes precedence; multilayer thermal transfer systems in general B41M5/38214)} · CPC title

• B44C1/1756 Primary

  Decalcomanias applied under heat and pressure, e.g. provided with a heat activable adhesive · CPC title

• B41M1/26

  Printing on other surfaces than ordinary paper (B41M1/40 takes precedence) · CPC title