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Energy-saving scouring and bleaching method

A technology for refining and bleaching and formulation, applied in the field of environmental protection refining and bleaching, can solve the problems of high energy consumption and long time, and achieve the effects of reduced strength loss, convenient operation and strong practicability.

Active Publication Date: 2010-08-11
NINGBO GUANG YUAN FABRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention is to provide an energy-saving scouring and bleaching method to solve the problems of high energy consumption and long time in the prior art

Method used

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  • Energy-saving scouring and bleaching method
  • Energy-saving scouring and bleaching method
  • Energy-saving scouring and bleaching method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Energy-saving technology developed and application effect:

[0033] One, such as figure 1 The steps shown are implemented, compared with the conventional process (the implementation steps are as figure 2 As shown), the process prescription is described in the following table:

[0034] Table I

[0035] Craft prescription

Energy-saving scouring and bleaching process

Conventional process

Hydrogen peroxide

--

5g /

Caustic soda

--

1.6g / l

Scouring agent

--

0.3g / l

Hydrogen peroxide stabilizer

--

1g / l

One-dose solid additives

5g / l

--

Bath ratio

1:10

1:10

Temperature / time

One-dose solid additives function 98℃ / 30′

Conventional process 98℃ / 50′

Deoxygenase

--

0.1g / l

[0036] Craft prescription

Energy-saving scouring and bleaching process

Conventional process

HAc

0.8g / l

0.8g / l

Water usage

4 channels

7 channels

[0037] 2. Application effect:

[0038] Table II

[0039]

[0040] Remarks:

[0041] ①Tradition: It is a traditional oxygen ble...

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PUM

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Abstract

The invention relates to an energy-saving scouring and bleaching method comprising the following steps: adding water and additive to fabric at 40 DEG C; increasing the temperature fabric of the fabric to 98 DEG C, and keeping the temperature of 98 DEG C for 30 min; washing the fabric, decreasing the temperature of the fabric to 75 DEG C, discharging the water, and controlling the temperature at 75 DEG C or below 75 DEG C; adding water and acetic acid HAC to the fabric for the second time, increasing the temperature of the fabric to 60 DEG C, keeping the temperature of 60 DEG C for 15 min, discharging water, and controlling the temperature at 60 DEG C or below 60 DEG C; adding water to the fabric for the third time for 5 min, discharging water; adding water to the fabric for the fourth time, and dying the fabric. The additive comprises the following components by weight percent: 2.5-5.5 percent of ethylene diamine tetraacetic acid (EDTA), 0-0.5 percent of hydrogen peroxide stabilizer, 5-15 percent of bleaching synergist, 10-15 percent of chelating agent, 54.5-77 percent of alkaline agent and 5-10 percent of surfactant. The invention solves the problems of long scouring and bleaching time and high energy consumption existing in the prior art.

Description

Technical field [0001] The technology belongs to the technical field of environmental protection scouring and bleaching, and particularly relates to an energy-saving scouring and bleaching method. Background technique [0002] Natural fibers such as cotton and hemp contain inherent impurities and pigments, and their pre-processing tasks are arduous and have a significant impact on the subsequent processing and the quality of the final product. At the same time, the pre-treatment process of natural fiber fabrics is also the link in the textile dyeing and finishing process that consumes the most water, energy, and requires the most chemicals and the most serious pollution. Therefore, the innovation of natural fiber fabric pretreatment technology, the development of new energy-saving, water-saving, environmentally-friendly additives, technologies and processes that meet the requirements of the "Three E" system (Efficiency, Economy, and Environment) Must do. [0003] Cotton knitted f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06L3/16D06M13/342D06M101/06D06L4/75
Inventor 付红平
Owner NINGBO GUANG YUAN FABRIC
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