07-05-2020 дата публикации
Номер: US20200141053A1
A composite support includes a first layer or sheet made from a printable or dyed material, a second layer or flexible polymer layer, and a third layer made from a hydrophilic and film-forming polymer. A method of using the support, in particular in digital printing or in dyeing with sublimation dyes, is also disclosed. 1. A composite support comprising:a first layer or sheet made from a printable material;a second layer or flexible polymer layer; anda third layer or hydrophilic and film-forming polymer layer.2. The support according to claim 1 , wherein the hydrophilic and film-forming polymer is selected from among vinyl alcohol polymers claim 1 , vinyl alcohol and alkylene claim 1 , carboxymethylcelluloses claim 1 , hydroxypropylcelluloses claim 1 , gelatines claim 1 , alginates claim 1 , polyvinylpyrrolidones claim 1 , polyethyleneimines and copolymers comprising at least one of the monomers selected from among vinyl acetate claim 1 , vinyl alcohol and ethylene claim 1 , and any mixture of these polymers and copolymers.3. The support according to claim 1 , wherein the second layer has a solid structure or a honeycomb structure.4. The support according to claim 2 , wherein the second layer comprises at least one polymer or a copolymer selected from among polyurethanes (PU) claim 2 , acrylic polymers and copolymers claim 2 , polyvinylidene chloride (PVDC) and vinylidene chloride copolymers claim 2 , polyvinyl acetate (PVAC) claim 2 , and any mixture of these polymers and copolymers.5. The support according to claim 1 , wherein the second layer comprises at least one additive selected from among a fireproofing agent claim 1 , a rheological additive claim 1 , a surfactant claim 1 , a brightening additive claim 1 , and/or at least one filler and/or at least one pigment.6. The support according to claim 1 , wherein the proportion of the polymer or copolymer in the second layer is at least 20% (wt/wt) and at most 99% (wt/wt) by weight with respect to the weight of the ...
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