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Oxygen bleaching auxiliary for flax fiber scouring and bleaching process and preparation method thereof

A technology of hemp fiber and bleaching aids, which is applied in the direction of textiles and papermaking, can solve the problems of uneven long and short segments of spun yarn, weak knot damage, fiber damage, etc., to reduce the number of knots, reduce damage, improve The effect of yarn evenness

Pending Publication Date: 2020-12-15
青岛奥洛思新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned patent uses a water-saving oxygen bleaching agent with an oxygen bleaching temperature of 100 degrees. The high-temperature oxygen bleaching temperature will cause damage to the fibers and weak knots, making the long and short segments of the spun yarn uneven.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] The oxygen bleaching auxiliary agent used in the hemp fiber scalding and bleaching process comprises the following components by weight percentage:

[0055] Modified sulfonate: 20%;

[0056] Fatty alcohol polyoxyethylene ether: 4%;

[0057] Solid oxygen: 25%;

[0058] Sodium edetate: 5%;

[0059] Polysiloxane defoamer: 1%;

[0060] Sodium metasilicate pentahydrate: 45%.

[0061] The preparation method of the oxygen bleaching auxiliary agent that is used for the basting and bleaching process of hemp fiber comprises the following steps:

[0062] (1) Weighing: Inspect various raw materials according to requirements, weigh various raw materials according to the formula ratio, and reserve them for later use;

[0063] (2), adjust the temperature of the reaction kettle equipped with a stirring device to 25°C, after the temperature is stable, add 5% sodium edetate by weight and 45% sodium metasilicate pentahydrate In the reaction kettle, turn on the stirring device, the sti...

Embodiment 2

[0068] The oxygen bleaching auxiliary agent used in the hemp fiber scalding and bleaching process comprises the following components by weight percentage:

[0069] Carboxymethylcellulose: 15%;

[0070] Fatty alcohol polyoxyethylene ether: 5%;

[0071] Solid oxygen: 28%;

[0072] Sodium edetate: 10%;

[0073] Polysiloxane defoamer: 2%;

[0074] Sodium metasilicate pentahydrate: 40%.

[0075] The preparation method of the oxygen bleaching auxiliary agent that is used for the basting and bleaching process of hemp fiber comprises the following steps:

[0076] (1) Weighing: Inspect various raw materials according to requirements, weigh various raw materials according to the formula ratio, and reserve them for later use;

[0077] (2), adjust the temperature of the reaction kettle equipped with a stirring device to 25 ° C, after the temperature is stable, add 10% by weight of sodium edetate and 40% by weight of sodium metasilicate pentahydrate Into the reaction kettle, turn on ...

Embodiment 3

[0082] The oxygen bleaching auxiliary agent used in the hemp fiber scalding and bleaching process comprises the following components by weight percentage:

[0083] Carboxymethylcellulose: 18.9%;

[0084] Fatty alcohol polyoxyethylene ether: 3.9%;

[0085] Solid oxygen: 27.2%;

[0086] Sodium edetate: 7.2%;

[0087] Polysiloxane defoamer: 1.5%;

[0088] Sodium metasilicate pentahydrate: 41.3%.

[0089] The preparation method of the oxygen bleaching auxiliary agent that is used for the basting and bleaching process of hemp fiber comprises the following steps:

[0090] (1) Weighing: Inspect various raw materials according to requirements, weigh various raw materials according to the formula ratio, and reserve them for later use;

[0091] (2), the temperature of the reactor equipped with stirring device is adjusted to 25°C, after the temperature is stable, 7.2% by weight of sodium ethylenediamine tetraacetate and 41.3% by weight of sodium metasilicate pentahydrate are added ...

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Abstract

The invention relates to the technical field of textile auxiliaries, in particular to an oxygen bleaching auxiliary for a flax fiber scouring and bleaching process and a preparation method thereof. The oxygen bleaching auxiliary comprises the following components in percentage by weight of 15%-20% of an anionic surfactant; 4%-5% of a nonionic surfactant; 25%-30% of solid oxygen; 5%-10% of a chelating dispersant; 1%-2% of a defoaming agent; and 40%-45% of sodium metasilicate pentahydrate. The preparation method of the oxygen bleaching auxiliary for the hemp fiber scouring and bleaching processcomprises the following steps of (1) performing weighing; (2) adding the chelating dispersant and the sodium metasilicate pentahydrate into a reaction kettle, and performing uniform stirring; (3) continuously adding the anionic surfactant, the nonionic surfactant and the defoaming agent, and performing uniform stirring; (4) adding solid oxygen until the solid oxygen is uniformly stirred; and (5) outputting the oxygen bleaching auxiliary. The oxygen bleaching auxiliary is used in the scouring and bleaching process, so that silicon scale pollution generated on yarn boiling equipment can be reduced, the gloss and hand feeling of flax fibers can be improved, and meanwhile, the damage to the flax fibers can be reduced.

Description

technical field [0001] The invention relates to the technical field of textile auxiliaries, in particular to an oxygen bleaching auxiliaries used in the scalding and bleaching process of hemp fibers and a preparation method thereof. Background technique [0002] Hemp fiber is an excellent fiber in the textile industry. Its fabric not only has good moisture absorption and heat dissipation, but also has good air permeability, and has a crisp and natural style, comfortable and cool to wear, and is deeply loved by consumers. Its spinnable fibers exist in the bast of the original flax stem in the form of fiber bundles. The length of the single fiber of flax is 10 mm to 26 mm, and the two ends of the single fiber are overlapped axially or laterally by pectin to form fibers. Bundles, fiber bundles and fiber bundles, bast and xylem are all connected by glue. [0003] At present, flax yarn is mainly spun by wet spinning process in China, and degumming is carried out by roving scouri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06L4/12D06L4/13
CPCD06L4/12D06L4/13
Inventor 尤士华张铭马建伟
Owner 青岛奥洛思新材料有限公司