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Friction and weighting agent and its preparation and application in improving kapok fiber spinning performance

A technology of kapok fiber and emulsifier, which is applied in fiber treatment, plant fiber, textiles and papermaking, etc. It can solve the problems of low kapok single fiber strength, low surface friction performance, and increased fiber slippage, and achieve low cost and easy carding Cotton, easy to remove effect

Inactive Publication Date: 2011-12-14
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One of the reasons for the decrease in the strength of blended yarns is that the outer wall of kapok fibers is smooth and the surface friction is low, which leads to increased slippage between fibers in the yarn and a decrease in yarn strength.
Another reason is that the kapok single fiber has low strength and short length, and the increase of its short pile rate reduces the long fibers that share the external force in the yarn, and also reduces the yarn strength.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] The concentration of the friction and weighting agent in water is 52g / L, and the pH value is 7.0, among which polyethyl acrylate, sodium alginate, emulsifier sodium dodecylbenzene sulfonate, softener fatty alcohol The mass ratio of polyoxyethylene ether, organic metal salt calcium acetate, anionic surfactant sodium dodecylbenzenesulfonate and nonionic surfactant fatty alcohol polyoxyethylene ether is 0.3:0.3:2:2:60:3 : 1.

[0021] The temperature is 20°C, and the kapok fiber is treated with the aqueous solution of the friction and weighting agent, and the constant temperature and humidity room (temperature (25±2)°C, relative humidity (65±2)%) is equilibrated for 48h. The weight gain rate of the treated fibers can reach about 10%, the cohesion between fibers has been greatly improved, and the fibers can be formed into a web, slivered and spun. The blending ratio is as high as 70%, and up to 30 counts can be spun - Yarn of 50 counts.

Embodiment 2

[0023] The concentration of friction and weighting agent in water is 61g / L, and the pH value is 6.5, among which polyethyl acrylate, sodium alginate, emulsifier sodium dodecylbenzene sulfonate, softener fatty alcohol The mass ratio of polyoxyethylene ether, organic metal salt calcium acetate, anionic surfactant sodium dodecylbenzenesulfonate and nonionic surfactant fatty alcohol polyoxyethylene ether is 02:02:1.5:1.5:60:2 : 1.

[0024] The temperature is 25°C, and the kapok fiber is treated with the aqueous solution of the friction and weighting agent, and the constant temperature and humidity room (temperature (25±2)°C, relative humidity (65±2)%) is equilibrated for 48h. The weight gain rate of the treated fibers can reach about 15%, the cohesion between fibers has been greatly improved, and the fiber can be formed into a web, slivered and spun. The blending ratio is as high as 70%, and it can be spun up to 30. - Yarn of 50 counts.

Embodiment 3

[0026] The concentration of friction and weighting agent in water is 43g / L, and the pH value is 7.5, among which polyethyl acrylate, sodium alginate, emulsifier sodium dodecylbenzene sulfonate, softener fatty alcohol The mass ratio of polyoxyethylene ether, organic metal salt calcium acetate, anionic surfactant sodium dodecylbenzenesulfonate and nonionic surfactant fatty alcohol polyoxyethylene ether is 0.5:0.5:2:2:55:2 : 1.

[0027] The temperature is 25°C, and the spraying process is adopted, and the constant temperature and humidity room (temperature (25±2)°C, relative humidity (65±2)%) is balanced for 48h. The weight gain rate of the treated fiber can reach about 20%, the cohesion between fibers has been greatly improved, and the fiber can be formed into a web, slivered and spun. The blending ratio is as high as 60%, and it can be spun up to 20. - 40 counts of yarn.

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Abstract

The invention relates to a friction-increasing and weighting agent and its preparation method and use in improvement of kapok fiber spinning performances. The friction-increasing and weighting agent is a mixed solution of raw materials comprising an acrylate derivative, sodium alginate, an emulsifier, a softener, an organic metal salt, an anionic surfactant and a nonionic surfactant. The preparation method comprises that the friction-increasing and weighting agent is prepared from the raw materials through emulsification and stirring. The use of the friction-increasing and weighting agent in improvement of kapok fiber spinning performances comprises the following steps of treating kapok fibers by the friction-increasing and weighting agent at a temperature of 20 to 30 DEG C and balancing the treated kapok fibers under the constant-temperature and constant-humidity conditions for 12 to 48 hours to obtain kapok fibers with improved performances. The preparation method of the friction-increasing and weighting agent has the advantages of simple operation, low cost, environmentally friendly characteristics and good applicability for industrialized production in textile industries. Through the use of the friction-increasing and weighting agent, kapok fibers have good performances of cotton carding, ribbon forming and spinning and thus a spinning bottleneck of kapok fibers in a spinning field is opened.

Description

technical field [0001] The invention belongs to the field of friction-increasing and weighting agents and their preparation and application, in particular to a friction-increasing and weighting agent and its preparation and application in improving kapok fiber spinning performance. Background technique [0002] The common kapok fiber has three kinds of colors: white, yellow and yellow-brown. The longitudinal appearance of kapok fiber is cylindrical, with smooth surface, less twist and good luster. Therefore, compared with cotton fiber, kapok fiber is softer and has better luster, but its strength and elasticity are poor. The cross-section of kapok fiber is round or oval, the middle section is thicker, the tip is thinner, and both ends are closed, the cells are filled with air, and the hollowness is more than 80%, up to 97%. The fineness, length and other indicators of kapok fibers are different due to the differences in samples collected in different documents, but there is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M13/188D06M15/263D06M15/13D06M13/256D06M15/53D06M101/06
Inventor 赵涛高静
Owner DONGHUA UNIV
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