Methods of treating textiles with foam and related processes

Patent metadata

Field	Value
Publication number	US-12305328-B2
Application number	US-202016988198-A
Country	US
Kind code	B2
Filing date	Aug 7, 2020
Priority date	Aug 7, 2020
Publication date	May 20, 2025
Grant date	May 20, 2025

Abstract

The present invention offers a new approach to the treatment of garments, including novel compositions and related methods using foam as a carrier of chemical products that are used during the industrial treatment of textiles. Another aspect of the invention relates to methods for reducing total water content necessary in industrial treatment of garments. Another aspect of the present invention relates to processes and methods of forming a foam that can be used for textile treatment.

First claim

The invention claimed is:

1. A system for creating a foam treatment for a textile comprising:
a venturi section comprising a first inlet, a second inlet, and an outlet;
a first inlet line fluidly connected to the first inlet and comprising a vessel containing a solution fluidly connected to a pump, wherein the solution comprises a dyestuff or a fixing agent;
a second inlet line fluidly connected to the second inlet and comprising an air compressor and a flow regulator;
an outlet line having a first end fluidly connected to the outlet, a second end opposite the first end, and a cartridge between the first and second ends and having an amount of stainless steel sponge, and wherein the second end is disposed within an innermost drum of a washing machine that contains textiles; and
wherein the foam treatment contains the dyestuff or the fixing agent.

2. The system of claim 1 , wherein the air compressor is configured to compress air to about 6 bar.

3. The system of claim 1 , wherein the pump is a venturi suction device, a membrane pump, or a pulse pump.

4. The system of claim 1 , wherein the flow regulator has a nominal pressure of about 6 bar.

5. The system of claim 1 , wherein the cartridge is about 32 cm long.

6. The system of claim 1 , wherein the cartridge is about 4.5 cm internal diameter.

7. The system of claim 1 , wherein the solution further comprises an amount of water and an amount of foaming agent.

8. The system of claim 1 , wherein the cartridge is PVC.

9. The system of claim 1 , wherein the second end of the outlet line is disposed within a rotating drum of a washing machine through an aperture in a door or chassis of the washing machine.

10. A method of creating foam for textile treatment using the system of claim 1 , comprising the steps of:
pumping a treatment solution comprising a dyestuff or a fixing agent into a first inlet of a venturi section;
compressing air and passing the compressed air to a second inlet of the venturi section using using an air compressor;
combining the treatment solution and the compressed air in the venturi section; and
creating a treatment foam by passing the combination of the treatment solution and compressed air through an outlet line having a first end fluidly connected to an outlet of the venturi section, a second end opposite the first end, and a cartridge between the first and second ends and having an amount of stainless steel sponge contained within the cartridge and wherein the second end is disposed within an innermost drum of a washing machine that contains the textile;
wherein the treatment foam contains the dyestuff or the fixing agent.

11. The method of claim 10 , further comprising the step of delivering the treatment foam to a washing machine drum.

12. The method of claim 10 , wherein the pumping step is accomplished by the venturi section, a membrane pump, or a pulse pump.

13. The method of claim 10 , wherein the compressing air step compresses air to 6 bar.

14. The method of claim 10 , wherein the treatment solution further comprises an amount of water and an amount of foaming agent.

15. A process for treating a textile with a dyestuff or fixing agent using the system of claim 1 , comprising the steps of:
pumping a treatment solution comprising a dyestuff or a fixing agent into a first inlet of a venturi section;
compressing air and passing the compressed air to a second inlet of the venturi section using an air compressor;
combining the treatment solution and the compressed air in the venturi section;
creating a treatment foam by passing the combination of the treatment solution and compressed air through an outlet line having a first end fluidly connected to an outlet of the venturi section, a second end opposite the first end, and a cartridge between the first and second ends and having an amount of stainless steel sponge contained within the cartridge and wherein the second end is disposed within an innermost drum of a washing machine that contains the textile; applying the treatment foam to the textile;
and wherein the treatment foam contains an effective amount of the dyestuff or the fixing agent to treat the textile.

Assignees

• Kemin Ind Inc

Inventors

• Cossiri Alfredo
• Capellini Luca
• Maiani Giovanni

Classifications

• B05B7/0025

  with a compressed gas supply · CPC title

• D06P5/002

  Locally enhancing dye affinity of a textile material by chemical means · CPC title

• D06L1/12

  using aqueous solvents · CPC title

• D06P3/60

  Natural or regenerated cellulose · CPC title

• D06B5/26

  using centrifugal force · CPC title