Fabric printable medium

Patent metadata

Field	Value
Publication number	US-11325410-B2
Application number	US-201816608346-A
Country	US
Kind code	B2
Filing date	Mar 19, 2018
Priority date	Mar 19, 2018
Publication date	May 10, 2022
Grant date	May 10, 2022

Abstract

A fabric printable medium includes a fabric base substrate, which includes yarn strands and voids among the yarn strands. The fabric printable medium further includes a finishing coating attached to the yarn strands of the fabric base substrate to form coated yarn strands. The finishing coating includes a first and a second crosslinked polymeric network. The fabric printable medium has pore spaces among the coated yarn strands that coincide with at least some of the voids of the fabric base substrate.

First claim

What is claimed is:

1. A fabric printable medium, comprising:
a fabric base substrate including yarn strands and voids among the yarn strands;
a finishing coating attached to the yarn strands of the fabric base substrate to form coated yarn strands, the finishing coating including a first and a second crosslinked polymeric network, wherein the first and second crosslinked polymeric networks collectively represent from about 80 wt % to about 99 wt % of a total weight of the finishing coating; and
pore spaces among the coated yarn strands and coinciding with at least some of the voids of the fabric base substrate.

2. The fabric printable medium as defined in claim 1 wherein the finishing coating has a dry coat-weight of 6 gsm or less.

3. The fabric printable medium as defined in claim 1 wherein the finishing coating is coated on surfaces of the yarn strands throughout a depth of the fabric base substrate.

4. The fabric printable medium as defined in claim 1 wherein the first crosslinked polymeric network and the second crosslinked polymeric network are different and independently selected from the group consisting of polyacrylate, polyurethane, vinyl-urethane, acrylic urethane, polyurethane-acrylic, polyether polyurethane, polyester polyurethane, polycaprolactam polyurethane, polyether polyurethane, alkyl epoxy resin, epoxy novolac resin, polyglycidyl resin, polyoxirane resin, polyamine, styrene maleic anhydride, derivatives thereof, and combinations thereof.

5. The fabric printable medium as defined in claim 1 , further comprising a waterproof coating attached to a back-side of the coated yarn strands.

6. The fabric printable medium as defined in claim 5 wherein the waterproof coating has a contact angle greater than 60°.

7. A fabric printable medium, comprising:
a fabric base substrate including yarn strands and voids among the yarn strands;
a finishing coating attached to the yarn strands of the fabric base substrate to form coated yarn strands, the finishing coating including a first and a second crosslinked polymeric network;
pore spaces among the coated yarn strands and coinciding with at least some of the voids of the fabric base substrate;
a waterproof coating attached to a back-side of the coated yarn strands, wherein the waterproof coating includes:
a physical networking agent selected from the group consisting of an acrylate copolymer, a polyacrylic acid copolymer, a polyether copolymer, a polyurethane copolymer, and combinations thereof, the physical networking agent having a weight average molecular weight from 300,000 Mw to 1,000,000 Mw; and
a waterproof agent selected from the group consisting of polyvinylidene chloride, a polyolefin, poly(ethylene terephthalate), a wax, perfluorooctane sulfonate, perfluorooctanoic acid, a hydrogen siloxane, a long chain hydrocarbon, and a modified fatty resin.

8. The fabric printable medium as defined in claim 5 wherein the waterproof coating has a surface energy of less than 40 mJ/m 2 .

9. The fabric printable medium as defined in claim 1 wherein at least 33% of the voids of the fabric base substrate coincide with the pore spaces.

10. A method for forming a fabric printable medium, comprising:
applying a finishing composition, including a first and a second crosslinked polymeric network, to yarn strands of a fabric base substrate, thereby forming a finishing coating i) attached to the yarn strands of the fabric base substrate to form coated yarn strands, and ii) having a dry coat-weight of 6 gsm or less; and pore spaces among the coated yarn strands that coincide with at least some voids of the fabric base substrate, wherein the first and second crosslinked polymeric networks collectively represent from about 80 wt % to about 99 wt % of a total weight of the finishing coating.

11. The method as defined in claim 10 , further comprising applying a waterproofing composition to a back-side of the coated yarn strands, thereby forming a waterproof coating.

12. The method as defined in claim 10 wherein the finishing composition is an aqueous dispersion having a solids content of 8% or less.

13. The method as defined in claim 10 wherein the application of the finishing composition involves:
using a coating technique to apply the finishing composition; and
drying the applied finishing composition.

14. A printing method, comprising:
obtaining a fabric printable medium including:
a fabric base substrate including yarn strands and voids among the yarn strands;
a finishing coating attached to the yarn strands of the fabric base substrate to form coated yarn strands, the finishing coating including a first and a second crosslinked polymeric network, wherein the first and second crosslinked polymeric networks collectively represent from about 80 wt % to about 99 wt % of a total weight of the finishing coating; and
pore spaces among the coated yarn strands and coinciding with at least some of the voids of the fabric base substrate; and

applying an ink composition onto an image-side of the coated yarn strands to form a printed image.

15. The fabric printable medium as defined in claim 7 wherein the waterproof coating has a contact angle greater than 60°.

16. The fabric printable medium as defined in claim 7 wherein the waterproof coating has a surface energy of less than 40 mJ/m 2 .

Assignees

• Hewlett Packard Development Co

Inventors

• Zhou Xiaoqi
• Fu Xulong
• Alfekri Dheya M
• Knight Douglas
• Selensky Ronald J

Classifications

• D06P1/5285 Primary

  Polyurethanes; Polyurea; Polyguanides · CPC title

• D06N2209/142

  Hydrophobic · CPC title

• B41M5/5272 Primary

  Polyesters; Polycarbonates · CPC title

• B32B27/12

  next to a fibrous or filamentary layer · CPC title

• D06N2209/1657

  Printability · CPC title