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Kiering method and bleaching agent for gauze

A technology of bleaching agent and gauze, which is applied in the field of bleaching processing, can solve the problems of reducing the qualified rate of gauze bleaching, high management and control costs, and serious damage to gauze, so as to avoid low concentration of active substances, reduce management and control costs, good effect

Active Publication Date: 2017-05-31
MEDWELL MEDICAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The currently widely used hydrogen peroxide bleaching process is usually carried out under the conditions of higher temperature and certain pH value, which makes the bleaching process costly, high energy consumption, and more serious damage to gauze, and the degree of elasticity deterioration of gauze after bleaching On the other hand, the bleaching activity of hydrogen peroxide is more sensitive to the alkalinity of the solution. High or low alkalinity will reduce the qualified rate of gauze bleaching. In actual production, it is necessary to detect the pH value and temperature value of the bleaching solution in real time. Process management and control costs are high

Method used

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  • Kiering method and bleaching agent for gauze

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Comparison scheme
Effect test

Embodiment 1

[0038] Bleach consists of 30% mass fraction of analytically pure H 2 o 2 , bleaching aid and stabilizer mixed, wherein, the mass fraction of 30% analytically pure H 2 o 2 The content is 5mL / L, the stabilizer content is 5g / L, and the bleaching aid content is 7g / L. The stabilizer is sodium silicate, the bleaching aid is a mixture of dimethyl sulfoxide (DMSO), sodium polyacrylate (PAAS) and sodium acetate, and the mass ratio of DMSO:PAAS:sodium acetate is 1.5:1:1. The preparation steps of bleaching agent are:

[0039] 1) Calculate the required amount of each component according to the concentration requirements of each component of the bleaching agent. According to the calculation results, measure a certain amount of analytically pure hydrogen peroxide (mass fraction 30%), pour the hydrogen peroxide into a certain amount of clear water and stir for 5 minutes until the mixture is uniform. After mixing, analytically pure H 2 o 2 The content is 30mL / L.

[0040] 2) According ...

Embodiment 2

[0053] Bleach consists of 30% mass fraction of analytically pure H 2 o 2 , bleaching aid and stabilizer mixed, wherein, the mass fraction of 30% analytically pure H 2 o 2 The content is 7mL / L, the stabilizer content is 6g / L, and the bleaching aid content is 10g / L. The stabilizer is sodium silicate, the bleaching aid is a mixture of dimethyl sulfoxide (DMSO), sodium polyacrylate (PAAS) and sodium acetate, and the mass ratio of DMSO:PAAS:sodium acetate is 1.7:1:1. The preparation steps of bleaching agent are:

[0054] 1) Calculate the required amount of each component according to the concentration requirements of each component of the bleaching agent. According to the calculation results, measure a certain amount of analytically pure hydrogen peroxide (mass fraction 30%), pour the hydrogen peroxide into a certain amount of clear water and stir for 5 minutes until the mixture is uniform. After mixing, analytically pure H 2 o 2 The content is 30mL / L.

[0055] 2) According...

Embodiment 3

[0068] Bleach consists of 30% mass fraction of analytically pure H 2 o 2 , bleaching aid and stabilizer mixed, wherein, the mass fraction of 30% analytically pure H 2 o 2 The content is 10mL / L, the content of stabilizer is 8g / L, and the content of bleaching aid is 15g / L. The stabilizer is sodium silicate, the bleaching aid is a mixture of dimethyl sulfoxide (DMSO), sodium polyacrylate (PAAS) and sodium acetate, and the mass ratio of DMSO:PAAS:sodium acetate is 2:1:1. The preparation steps of bleaching agent are:

[0069] 1) Calculate the required amount of each component according to the concentration requirements of each component of the bleaching agent. According to the calculation results, measure a certain amount of analytically pure hydrogen peroxide (mass fraction 30%), pour the hydrogen peroxide into a certain amount of clear water and stir for 5 minutes until the mixture is uniform. After mixing, analytically pure H 2 o 2 The content is 30mL / L.

[0070] 2) Acco...

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Abstract

The invention discloses a bleaching agent for gauze. The bleaching agent comprises hydrogen peroxide (H2O2), a stabilizer and a bleaching auxiliary, wherein the stabilizer is soluble silicate; the bleaching auxiliary is a mixture of dimethyl sulfoxide (DMSO), sodium polyacrylate (PAAS) and sodium acetate. In the bleaching agent, the content of analytically pure H2O2 of which the mass percentage is 30% is 5-15ml / L, the content of the stabilizer is 5-10g / L, and the content of the bleaching auxiliary is 7-20g / L. The invention further discloses a bleaching method applicable to the bleaching agent. The bleaching method comprises the following steps: washing, deoiling, degreasing, bleaching, rinsing with clean water, and washing artificially. By adopting the bleaching agent for the gauze, the whiteness degree can be increased, a good break strength retention rate can be maintained, and a good bleaching effect can be achieved. Meanwhile, by adopting the bleaching process method disclosed by the invention, application of the bleaching agent can be very well met, and the effects of the bleaching agent can be sufficiently brought into play.

Description

technical field [0001] The invention belongs to the technical field of bleaching processing, in particular to a method for bleaching gauze and a bleaching agent thereof. Background technique [0002] Gauze accounts for a large proportion of medical textiles, and the refining and bleaching of gauze is a complicated process. At present, the bleaching systems commonly used in the dyeing and finishing industry are mainly: hydrogen peroxide system, sodium chlorite system and sodium hypochlorite system in acidic medium. Among them, although sodium chlorite has a good bleaching effect and low damage to fabrics, it has high requirements for equipment, high cost, and great limitations in application. During the bleaching process, it will release highly toxic and corrosive chlorine dioxide. Gas, so its protection requirements for equipment materials and workers are also very strict; when bleaching with sodium hypochlorite, it will produce AOX (absorbable organic halides) with serious...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06L4/13D06L4/75D06L1/16
CPCD06L1/16
Inventor 陈剑璋
Owner MEDWELL MEDICAL PROD
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