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Method for the use of hydrophobic bleadching systems in textile preparation

A textile and hydrophobic technology, applied in the direction of textiles and papermaking, bleaching products, chemical instruments and methods, etc., can solve the problems of increasing fiber damage, and achieve cost saving, excellent fabric strength retention, excellent bleaching and whiteness Effect

Inactive Publication Date: 2003-08-27
THE PROCTER & GAMBLE COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, hydrophobic systems are limited to domestic laundering environments due to the formation of diacyl peroxides in the wash liquor
Diacyl peroxides degrade natural rubber components on contact, therefore, washing machine drains, rubber gaskets, etc. under certain conditions prevent the use of this technology
In fact, EP 584,710 specifies that in order to achieve acceptable whiteness, an additional alkaline bleaching process is necessary which will significantly increase damage to the fibers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0091] The bleaching and pretreatment method of the present invention can be carried out as follows. The method can be performed on an automatic laboratory stainer equipped with an infrared heating system (Labmat) manufactured by Mathis Co. Prepare a bleach solution by adding the chemicals listed in Table 1 below to deionized water. The order of addition is as follows: wetting agent-chelating agent-activator-H 2 o 2 -NaOH-fabric. The fabric is desized and washed, plain weave 122g / m 2 Heavy 100% cotton calico. The whiteness of the original fabric is CIE32.58. The fabric was placed in the solution at a liquid / fabric ratio of 15:1. The solution was heated from about 20°C to the desired bleaching temperature in each column of Table 1 in about 10 minutes, held at the desired temperature for 50 minutes, and then cooled to room temperature. Remove the fabric from the bleach solution and wash the fabric thoroughly in hot and lukewarm water to ensure that no more alkali remains ...

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PUM

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Abstract

A method for the treatment of a non-finished textile component is provided. The method comprises the steps of treating a non-finished textile component in an aqueous bleaching solution of hydrogen and a hydrophobic bleach activator or hydrophobic peracid. Preferred bleach activators include the alkanoyloxybenzene sulfonates and in particular noanoyloxybenzene sulfonate. The method provides superior fiber protection and fabric strength benefits versus conventional processing as well as significant savings in both energy and time due to the lower bleaching temperatures.

Description

[0001] References to related applications [0002] This application claims priority under 37 U.S.C. §119(e) to U.S. Provisional Application Serial No. 60 / 182,702 (Attorney Docket No. 7961P), filed February 15, 2000. technical field [0003] The present invention relates to the application of hydrophobic bleaching systems in the pretreatment of textiles, more particularly to the activation of peroxide bleaching systems by hydrophobic activators or hydrophobic peracids on woven or knitted fabrics, fibers or yarns Applications. Background of the invention [0004] In the textile processing of natural fibres, yarns and fabrics, a pretreatment or pretreatment step is generally required to properly prepare the natural material for further use, especially for dyeing and / or the final stages generally required for commercial goods. These fabric treatment steps remove impurities and colored bodies, whether naturally occurring or introduced into the fibers and / or fabric during the spi...

Claims

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Application Information

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IPC IPC(8): C11D7/18C11D7/26C11D7/32C11D7/54D06L3/02D06L4/13D06L4/15
CPCD06L3/023D06L3/025D06L4/13D06L4/15
Inventor 王季平诺迪埃·门罗·华盛顿凯文·戴维·莫
Owner THE PROCTER & GAMBLE COMPANY
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