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Production method for garment, dyed cloth, and chemical agent

a production method and cloth technology, applied in the direction of dyeing process, laser beam fibre treatment, physical treatment, etc., can solve the problems of affecting the quality of the fabric, etc., so as to achieve the effect of high whiteness, easy decolorization, and efficient production

Pending Publication Date: 2022-07-21
YUKEN CHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides a method for easily decolorizing a dyed cloth to a high degree of whiteness, which can help efficiently produce garments with a vintage feel.

Problems solved by technology

However, it takes too much time to impart a fabric with a vintage feel by means of actual use, and with used clothing, the fabric might actually be damaged, or there may be no demand from customers that do not like used clothing.
However, in the methods for physically decolorizing a fiber product, there has been a problem in that removing any stones, etc. which have become embedded in the fibers after decolorization requires time and effort.
Further, in the methods for chemical decolorization, there has been a problem in that treating the used chemical liquid requires time and effort.
In addition, in all of the conventional methods, there has been a problem in that it is difficult to impart a vintage feel accurately and with a natural texture at the desired locations of the cloth.

Method used

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  • Production method for garment, dyed cloth, and chemical agent
  • Production method for garment, dyed cloth, and chemical agent
  • Production method for garment, dyed cloth, and chemical agent

Examples

Experimental program
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Effect test

example 1

[0072]17 parts by mass of anhydrous citric acid, 17 parts by mass of sodium hydrogenphosphate, 25 parts by mass of sodium dihydrogenphosphate, and 8 parts by mass of monoethanolamine (content of 90%) was dissolved in 100 parts by mass of water to prepare a denim cloth treatment liquid.

[0073]99 parts by mass of water was added to 1 part by mass of the denim cloth treatment liquid to prepare a denim cloth treatment diluted solution.

[0074]A sulfur-dyed denim cloth was dipped in the denim cloth treatment diluted solution for 5 minutes, and then the denim cloth was lifted out from the solution and the moisture was wrung out using a wringer. The denim cloth was subsequently air-dried by at room temperature.

[0075]The dried denim cloth was cut and sewn to produce a pair of jeans.

[0076]Using a laser irradiation device with an irradiation temperature of approximately 1000° C., the laser irradiation port was brought to about 1500 mm from the cloth and the laser was irradiated thereon while mov...

example 2

[0077]A pair of jeans which was subjected to the same decolorization processing as Example 1 was produced, except that the denim cloth treatment liquid was prepared by dissolving 3.5 parts by mass of anhydrous citric acid, 17 parts by mass of sulfamic acid, 5 parts by mass of 85% phosphoric acid, 3 parts by mass of sodium hydrogenphosphate, 7 parts by mass of sodium dihydrogenphosphate, and 12 parts by mass of monoethanolamine (content of 90%) in 52.5 parts by mass of water, and that an indigo-dyed denim cloth was used.

example 3

[0078]A pair of jeans which was subjected to the same decolorization processing as Example 2 was produced, except that an indigo-dyed denim cloth of a lighter color than the cloth of Example 2 was used as the dyed cloth.

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Abstract

[Problem] The present invention addresses the problem of providing: a method for producing garments that use dyed cloth on which whiteness easily emerges due to heating by irradiation with laser or the like and which can be efficiently decolorized; dyed cloth used in production of decolorized garments; and a chemical agent used in decolorization of dyed cloth. [Solution] This production method for garments is characterized by using a heat treatment to decolorize garments which use dyed cloth containing an alkanolamine. The temperature of the heat treatment is preferably 160-180° C., and the heat treatment is more preferably a laser machining treatment.

Description

TECHNICAL FIELD[0001]The present invention relates to a production method for a decolorized garment, and a dyed cloth and a chemical agent to be used in the production of such a garment.BACKGROUND ART[0002]One example of a dyed fiber product is a fiber product using a denim cloth, typified by jeans, etc. For jeans, etc., the feeling of a new product that has just been dyed is sometimes desired, but consumers widely prefer a fabric that has been nicely faded due to use, or a fabric that has a vintage feel that comes with age. However, it takes too much time to impart a fabric with a vintage feel by means of actual use, and with used clothing, the fabric might actually be damaged, or there may be no demand from customers that do not like used clothing. Therefore, many methods for imparting a vintage feel by subjecting a new cloth, etc. to a decolorization treatment in advance have been widely researched.[0003]Some conventionally used decolorization methods include a method of blurring...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): D06P5/13D06P5/20D06P1/645D06M10/00D06M13/325
CPCD06P5/137D06P5/2005D06P5/131D06M13/325D06P1/645D06M10/005D06P5/2077D06P5/13D06Q1/00D06B11/0096D06P5/151D06P5/158D06P1/67308D06P5/04D06P5/06D06P1/67333D06P3/6025
Inventor TAKEDA, HARUKI
Owner YUKEN CHEM CO LTD