A kind of energy-saving bleaching method

A technology of scouring and bleaching and dosage form, which is applied in the field of environmental protection scouring 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: 2012-02-22
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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  • A kind of energy-saving bleaching method
  • A kind of energy-saving bleaching method
  • A kind of energy-saving bleaching method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The developed energy-saving technology and its application effect:

[0033] One, such as figure 1 The steps shown are implemented, compared with conventional technology (implementation steps are as figure 2 Shown), its 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 additive effect 98℃ / 30'

Conventional process 98℃ / 50'

deoxygenase

--

0.1g / l

HAc

0.8g / l

0.8g / l

Water use times

4 lanes

7 roads

[0036] 2. Application effect:

[0037] Ta...

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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 in particular relates to an energy-saving scouring and bleaching method. Background technique [0002] Natural fibers such as cotton and hemp contain inherent impurities and pigments. The pre-processing tasks are heavy and have a great impact on subsequent processing and the quality of the final product. At the same time, the pretreatment process of natural fiber fabrics is also the link in the textile dyeing and finishing process that consumes the most water, energy, chemicals, and pollutes the most. Therefore, to innovate the pretreatment process of natural fiber fabrics and to develop new energy-saving, water-saving and environmentally friendly additives, technologies and processes that meet the requirements of the "three E" system (Efficiency, Economy, and Environment) is of great potential. It must be done. [0003] Cotton knitted fabrics are co...

Claims

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Application Information

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