Peroxyacetic acid stabilizing synergistic agent for bleaching flax fibers
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A technology for stabilizing synergist and peracetic acid, applied in bleaching products, textiles and papermaking, etc., can solve the problems that the stabilization effect of peracetic acid cannot meet the needs of industrial production and the high cost
Inactive Publication Date: 2011-11-09
HARBIN UNIV OF SCI & TECH
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Problems solved by technology
The stabilizing effect of these stabilizers on peracetic acid cannot meet the needs of industrial production, and some have higher costs
Therefore, peracetic acid is still difficult to be widely used in the bleaching industry.
Method used
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Embodiment 1
[0028] Suspend 1000g of cornstarch in 3000ml of water to make starch milk. Dissolve 200g of sodium hydroxide in 5000ml of water and heat to 80°C. Add the cornstarch milk into the sodium hydroxide solution under stirring, raise the temperature to 95°C, and add 5g of V 2 o 5 as an oxidation catalyst. Pass through oxygen to react for 4 hours, stop the reaction and then keep the temperature for 1 hour, cool and discharge to obtain the oxidized hydrolyzate of corn starch.
[0029] The composition of GYW-1 stabilizer synergist is as follows:
[0030] Corn starch oxidative hydrolyzate 600g, sodium silicate 80g, sodium stannate 20g, sodium pyrophosphate 35g, ammonium vanadate 5g, water 260g. Sodium silicate, sodium stannate, sodium pyrophosphate and ammonium vanadate are dissolved in water, and the oxidized hydrolyzate of corn starch is mixed evenly.
Embodiment 2
[0032] The composition of GYW-2 stabilizer synergist is as follows:
[0033] Corn starch oxidative hydrolyzate 600g, sodium silicate 90g, sodium pyrophosphate 40g, ammonium vanadate 5g, water 265g. Sodium silicate, sodium pyrophosphate and ammonium vanadate are dissolved in water, stirred and mixed with cornstarch oxidized hydrolyzate.
Embodiment 3
[0035] The composition of GYW-3 stabilizer synergist is as follows:
[0036]Corn starch oxidative hydrolyzate 600g, sodium silicate 80g, sodium stannate 10g, sodium pyrophosphate 50g, ammonium vanadate 4g, water 256g. Sodium silicate, sodium stannate, sodium pyrophosphate and ammonium vanadate are dissolved in water, and the oxidized hydrolyzate of corn starch is mixed evenly.
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Abstract
The invention relates to a peroxyacetic acid stabilizing synergistic agent for bleaching flax fibers. The prior stabilizers can not meet the requirements of industrial production for stabilizing peroxyacetic acid and have higher cost, so the peroxyacetic acid can not get wide application in the bleaching industry. The stabilizing synergistic agent comprises the following components: 3-10 percent of sodium silicate, 0-2 percent of sodium stannate, 2-5 percent of sodium pyrophosphate, 0.1-0.5 percent of ammonium vanadate which is used as a peroxyacetic acid oxidation catalyst, and the balance ofcorn starch oxydrolysis products. In the peroxyacetic acid stabilizing synergistic agent, the corn starch oxydrolysis products are served as the main component of the stabilizer, the peroxyacetic acid is stabilized through the action of complexing metal ions, dispersing solid pollutants and stabilizing the pH value of a bleaching system; the sodium silicate, the sodium stannate, the sodium pyrophosphate, and the like are complemented to form a compound stabilizer; and the ammonium vanadate is used as the peroxyacetic acid oxidation catalyst to form the peroxyacetic acid stabilizing synergistic agent. The product can be used as the peroxyacetic acid stabilizing synergistic agent during bleaching flax fibers.
Description
Technical field: [0001] The invention relates to a stabilizer used in the field of textile industry, in particular to a novel high-efficiency peracetic acid stabilizing synergist with corn starch as the main component. Background technique: [0002] As an environment-friendly bleaching agent, peracetic acid has attracted extensive attention of domestic and foreign textile workers. The application research in the bleaching process of linen fabrics, pure cotton fabrics and soybean protein fibers shows that peracetic acid is expected to become a substitute for hypochlorite and obtain a completely chlorine-free bleaching technology. The bleaching mechanism of peracetic acid is not very clear. It is generally believed that peracetic acid decomposes to produce hydroxyl radicals. This hydroxyl radical has strong oxidative properties, and the conjugated double bond system in the oxidized pigment molecule causes the color to disappear. Bleach effect. In addition, the hydroxyl radic...
Claims
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Application Information
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