Back to results
US 2024/0044073 A1Published application
Layer composite for use as an imitation leather
AssigneeNUVI RELEAF GmbH
InventorsAndreas RÖßLER, Nina RÖßLER
Life of this patent
Estimating the term…
Abstract
A layer composite for use as an imitation leather is provided. Also provided is a garment including the layer composite and a method of manufacturing the layer composite.
Claims12
1:
- A layer composite for use as an imitation leather, which has the following layers:
- a) a carrier layer having textile material, and
- b) a decorative layer,
- wherein
- the decorative layer comprises the following components:
- i. a binder,
- ii. a filler material comprising an inorganic salt and/or lignin and/or a combination of plant leaf material and a gum material, and
- iii. a humectant.
5 more elements
2:
- The layer composite according to claim 1, wherein the humectant is selected from the group consisting of glycerol, polydextrose, sorbitol, polyhydric alcohols and polyalcohols such as 1,2-propanediol, glycol or alditols, aloe vera gel, honey, lithium chloride, molasses, urea, xylitol, hydroxycarboxylic acids, triacetin, quillaja extract, urea, pantolactone and mixtures of the foregoing.
3:
- The layer composite according to claim 1, wherein the anorganic salt is selected from the group consisting of iron oxide, titanium dioxide, chalk, kaolin, marble powder and zeolite.
4:
- The layer composite according to claim 1, wherein the gum material is selected from gum arabic, tragacanth, karaya gum and starch gum.
5:
- The layer composite according to claim 1, wherein the binder is a polysaccharide preferably selected from the group consisting of agar-agar, chitosan, pectin and xanthan, natural and synthetic resins, gelatin, alginate, cellulose ether, modified starch, glue and mixtures of the foregoing.
6:
- The layer composite according to claim 1, wherein the weight ratio of binder to filler material is in the range of 1:10 to 10:1.
7:
- The layer composite according to claim 1, wherein the weight ratio of binder to humectant is in the range of 1:10 to 10:1.
8:
- The layer composite according to claim 1, wherein the carrier layer has a nonwoven, and/or a woven fabric.
9:
- The layer composite according to claim 1, wherein said layer composite has one or more adhesive layers.
10:
- A garment comprising the layer composite according to claim 1.
11:
- A method of manufacturing the layer composite according to claim 1, comprising the following step:
- A) applying the following components to a textile carrier layer to obtain a decorative layer disposed on the carrier layer, preferably covering ≥90% of a planar side of the carrier layer:
- i. a binder,
- ii. a filler material comprising an inorganic salt and/or lignin and/or a combination of plant leaf and gum material such as starch gum, and
- iii. a humectant.
2 more elements
12:
- The method according to claim 11, wherein the method comprises the following additional steps:
- B) dissolving and/or dispersing the filler material, the binder and the humectant in one or more aqueous solvents and/or dispersants prior to application to the carrier layer,
- C) removing the one or more aqueous solvents and/or dispersants after application to the carrier layer, preferably at elevated temperature and/or reduced pressure, so that the decorative layer is formed, and
- optional:
- D) Needling and/or bonding of at least two layers of the layer composite.
- E) Embossing the decorative layer, preferably with a roller, a calender or a press.
3 more elements