CN101892581B - Process for boiling and bleaching flax rove - Google Patents

Abstract

The invention relates to a process for boiling and bleaching flax rove. In the process, boiling and bleaching are performed through a yarn boiling step, a scouring step and an oxygen bleaching step. The boiling and bleaching process has the advantages of simplifying technical process, shortening process time, saving about 1 hour per boiler than the conventional sub-oxygen bleaching process, reducing water washing times, effectively saving water resource, lowering production cost, greatly reducing the varieties of chemicals, bringing convenience to the operation of workers, production management and technical management, improving spun yarn quality, split degree and yarn softness, preventing human body from toxic hazard and avoiding environmental pollution.

Description

A kind of flax roving boiling and bleaching process

Technical field: the present invention relates to a kind of flax roving boiling and bleaching process.

Background technology: at present, the flax roving of linen textile industry boils to float and prolongs with inferior oxygen kiering yarn process always, owing to adopt strong acid that the rove fiber is embathed; It has strong corrosivity, is to use still transportation all to have very big potential safety hazard, Asia to float the middle a kind of especially inflammable and explosive dangerous material of certain density sodium chlorite that add; It not only costs an arm and a leg, the transportation and storage difficulty, and also the respiratory system that the chlorine dioxide of overflowing in the use is known from experience operating personnel has very big toxic action; Come unstuck and contain extremely toxic substance dioxin and phenyl polychloride dioxin in the waste liquid, phenyl polychloride closes dioxin material such as furans and reaches kind more than 200, also has materials such as chloroform halo aldehydes in addition; Quite a few has carcinogenic in these organic halogens, teratogenesis and multiple cranial nerve pathology etc., and they also have accumulation toxicity or are dissolved in the bleaching waste liquor or are deposited in the fabric fibre surface; Water environment is polluted; Bring injury to human body, inferior bleaching process through repeatedly washing, promptly causes the serious waste of water resource in bleaching process; Prolonged the boiling-off time again; Cause the reduction of production efficiency, used the many auxiliary agents except that main industrial chemicals in the technological process, brought inconvenience for production operation and management.

Summary of the invention: the objective of the invention is to overcome above-mentioned shortcoming, a kind of flax roving boiling and bleaching process is provided, it has mainly solved the repeatedly washing in bleaching process of inferior bleaching process, causes the waste of water resource, has prolonged the boiling-off time, problem such as production efficiency is low.The objective of the invention is to realize like this, the first step is to boil the yarn engineering: elder generation boiled yarn 10-15 minute with 55-60 ℃ hot water, and water is drained; Second step was the boiling-off engineering: earlier in the condiment cylinder, prepare boiling house solution, with 25 kilograms of pure sodium solutions, add water to 400 liters, inject main pot, intensification 95-100 ℃, be incubated discharge opeing after 50-60 minute, with discharge opeing after 50-60 ℃ washing 10-15 minute; The 3rd step was an oxygen bleaching engineering: in the condiment cylinder, prepare bleaching liquid, and with 20 kilograms of carboxylic acid sodium solution, 15 kilograms in bleaching agent 0.7-1 kilogram, hydrogen peroxide solution; Add water to 400 liters; Inject main pot, intensification 90-100 ℃, be incubated discharge opeing after 35-40 minute; With discharge opeing after 50-60 ℃ washing 10-15 minute, get final product to neutral with cold wash at last.This boiling and bleaching process has been simplified technical process, has shortened the process time, saves time 1 hour than every pot of traditional inferior oxygen bleaching process.Washing times is few, has effectively practiced thrift water resource, has reduced production cost; Chemical industry material kind significantly reduces, and has made things convenient for workman's operation and production management and technical management, has improved the spun yarn quality with this technology; Improved the flexibility of division degree and yarn,, environment has not been polluted the human non-toxic evil.

The specific embodiment:

A, boil the yarn engineering: boiled yarn 10 minutes with 55-60 ℃ of hot water earlier, water is drained;

B, boiling-off engineering: in the condiment cylinder, prepare boiling house solution, add water to 400 liters, inject main pot, intensification 95-100 ℃, be incubated discharge opeing after 50-60 minute, with discharge opeing after 55-60 ℃ washing 10-15 minute with 25 kilograms of pure sodium solutions;

C, oxygen bleaching engineering: in the condiment cylinder, prepare bleaching liquid; With 15 kilograms of 20 kilograms of carboxylic acid sodium solution, bleaching agent 0.7-1 kilogram, hydrogen peroxide solution, add water to 400 liters, inject main pot; Intensification 90-100 ℃; Be incubated discharge opeing after 35-40 minute,, get final product to neutral with cold wash at last with 50-60 ℃ washing 10-15 minute discharge opeing.

Claims (1)

1. A kind of flax roving boiling and bleaching process is characterized in that:

A, boil the yarn engineering: boiled yarn 10 minutes with 55-60 ℃ of hot water earlier, water is drained;

B, boiling-off engineering: in the condiment cylinder, prepare boiling house solution, add water to 400 liters, inject main pot, intensification 95-100 ℃, be incubated discharge opeing after 50-60 minute, with discharge opeing after 55-60 ℃ washing 10-15 minute with 25 kilograms of pure sodium solutions;

c, oxygen bleaching engineering: in the condiment cylinder, prepare bleaching liquid; With 15 kilograms of 20 kilograms of carboxylic acid sodium solution, bleaching agent 0.7-1 kilogram, hydrogen peroxide solution, add water to 400 liters, inject main pot; Intensification 90-100 ℃; Be incubated discharge opeing after 35-40 minute,, get final product to neutral with cold wash at last with 50-60 ℃ washing 10-15 minute discharge opeing.