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Bleaching method of fenther fabric

A fabric and feather technology, applied in the field of feather fabric bleaching, can solve the problems of low tensile strength, no cohesion, and brittle feather fibers, etc., and achieve the effect of improving fabric whiteness, less strength damage, and whiteness improvement

Inactive Publication Date: 2006-01-11
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chinese Patent Publication No. 1584159 discloses a feather fiber composite yarn and its fabric production method, which solves the problem that the feather fiber is short, straight, has no cohesion, low tensile strength, and cannot be directly used for spinning
Using this conventional process to bleach feather fabrics, the pigment removal effect is poor, and what is more serious is that the conventional bleaching method greatly destroys the strength of feather fibers. This is because feather fibers are a kind of complex protein fibers, and their inner layer structure is also Feather proteins such as glutamic acid, arginine, light acid, threonine and other amino acids in the main body of feather fibers are quite sensitive to alkali and strong oxidants at high temperatures, so conventional bleaching methods tend to make feather fibers brittle and broken, and cannot Meet the requirements

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] (1) Pretreatment: Prepare 3g / L ferrous sulfate, 1g / L penetrant JFC, and 2g / L citric acid to prepare a ferrous sulfate pretreatment solution with a pH of 6.0, raise the temperature to 60°C, and then moisten the Place the feather fabric in it, react for 40 minutes while stirring, and then wash it in hot water at 75°C for 25 minutes;

[0019] (2) Selective oxidation: 10g / L 30% hydrogen peroxide, 2g / L hydrogen peroxide stabilizer, and 3g / L urea are prepared into a selective oxidation solution with a pH of 10.0, the temperature is raised to 80°C, and the pretreated feathers The fabric is placed in it, oxidized for 60 minutes while stirring, and then rinsed with cold water;

[0020] (3) Reductive bleaching: 3g / L sodium dithionite and 6g / L oxalic acid are prepared into a reductive bleaching solution with a pH of 8.0, and the temperature is raised to 60°C, and then the selectively oxidized feather fabric is placed in it, and stirred Simultaneously reduce for 40 minutes, then r...

Embodiment 2

[0024] (1) Pretreatment: 4g / L ferrous sulfate, 1.5g / L penetrant T, and 2.5g / L citric acid are prepared into a ferrous sulfate pretreatment solution with a pH of 5.5, and the temperature is raised to 55°C. The wet feather fabric is placed in it, reacted for 35 minutes while stirring, and then washed in hot water at 70°C for 20 minutes;

[0025] (2) Selective oxidation: 12g / L 30% hydrogen peroxide, 2.5g / L hydrogen peroxide stabilizer, and 3.5g / L urea were prepared into a selective oxidation solution with a pH of 9.5, the temperature was raised to 75°C, and the pretreated The feather fabric is placed in it, oxidized for 55 minutes while stirring, and then rinsed with cold water;

[0026] (3) Reductive bleaching: 4g / L sodium dithionite and 6.5g / L oxalic acid are prepared into a reductive bleaching solution with a pH of 7.5, and the temperature is raised to 55°C, and then the selectively oxidized feather fabric is placed in it and stirred. while reducing for 35 minutes, then rinse...

Embodiment 3

[0030] (1) Pretreatment: Prepare 5g / L ferrous sulfate, 2g / L penetrant Tx, and 3g / L citric acid to prepare a ferrous sulfate pretreatment solution with a pH of 5.0, raise the temperature to 50°C, and then moisten the Put the feather fabric in it, react for 30 minutes while stirring, and then wash it in hot water at 65°C for 15 minutes;

[0031] (2) Selective oxidation: 14g / L 30% hydrogen peroxide, 3g / L hydrogen peroxide stabilizer, and 4g / L urea are prepared into a selective oxidation solution with a pH of 9.0, the temperature is raised to 70°C, and the pretreated feathers The fabric is placed in it, oxidized for 50 minutes while stirring, and then rinsed with cold water;

[0032] (3) Reduction bleaching: 5g / L sodium dithionite and 7g / L oxalic acid are prepared into a reduction bleaching solution with a pH of 7.0, the temperature is raised to 50°C, and the feather fabric after selective oxidation is placed in it. Simultaneously reduce for 30 minutes, then rinse with cold water...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The present invention discloses a bleaching method of feather fabric. It includes the following steps: firstly, using ferrous ions to pretreat the feather fabric, then making selective oxidation in hydroperoxide solution, finally making reduction bleaching in sodium hydrosulfite. Said method not only can remove natural colour mater containing in feather fabric, but also can raise whiteness of fabric.

Description

technical field [0001] The invention belongs to the technical field of feather fabric bleaching, in particular to a method for bleaching feather fabric. Background technique [0002] Large-scale poultry farming produces a large amount of waste, which seriously pollutes the environment, among which the amount of feathers ranks first. my country is a big poultry breeding country, with 3.2 billion poultry slaughtered every year and 1 million tons of feathers and down, accounting for 70% of the world's total. How to effectively use this rich source of protein fiber and reduce its environmental pollution has always been a problem that needs to be solved hot issues. So far, only about 20% of feather duvets are made into roughage and stuffing of warm clothing, which can only obtain lower added value. [0003] Due to the deterioration of the environment caused by the destruction of goats to vegetation, goat breeding is limited, and wool production is declining year by year. People ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06L3/02D06L4/12D06L4/13D06L4/30
Inventor 刘维锦刘伟时
Owner SOUTH CHINA UNIV OF TECH
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