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Friction-increasing and weighting agent and its preparation method and use in improvement of kapok fiber spinning performances

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 decreased yarn strength, and achieve low cost and easy carding Cotton, easy to remove effect

Inactive Publication Date: 2013-03-06
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 friction increasing and weighting agent in water is 52g / L, and the pH value is 7.0. Among them, acrylate derivatives polyethyl acrylate, sodium alginate, emulsifier sodium dodecylbenzenesulfonate, softener fatty alcohol The mass ratio of polyoxyethylene ether, organic metal salt calcium acetate, anionic surfactant sodium dodecylbenzene sulfonate and nonionic surfactant fatty alcohol polyoxyethylene ether is 0.3:0.3:2:2:60:3 : 1.

[0021] At a temperature of 20°C, the kapok fiber was treated with the aqueous solution of the friction increasing agent, and the constant temperature and humidity chamber (temperature (25±2)°C, relative humidity (65±2)%) was equilibrated for 48 hours. 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 webs, slivers and spinning. The blending ratio is up to 70%, and it can be spun up to 30 threads -50 yarns.

Embodiment 2

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

[0024] The temperature is 25°C, the kapok fiber is treated with the aqueous solution of the friction increasing agent, and the constant temperature and humidity chamber (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 fibers can be formed into a net, into a sliver and spun, with a blending ratio of up to 70%, and can be spun up to 30 -50 yarns.

Embodiment 3

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

[0027] The temperature is 25°C, the spray method is adopted, and the constant temperature and humidity chamber (temperature (25±2)°C, relative humidity (65±2)%) is balanced for 48 hours. The weight gain rate of the treated fibers can reach about 20%, the cohesion between fibers has been greatly improved, and the fibers can be formed into webs, slivers and spinning. The blending ratio is as high as 60%, and it can be spun up to 20 -40 yarns.

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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 a friction increasing and weighting agent and its preparation and application, in particular to a friction increasing and weighting agent and its preparation and application in improving the spinning performance of kapok fibers. Background technique [0002] The common kapok fibers are white, yellow and yellow-brown. The longitudinal appearance of kapok fibers is cylindrical, the surface is smooth, the twist is less, and the luster is good. Therefore, compared with cotton fiber, kapok fiber is softer and has better luster, but it has poor strength and elasticity. The cross-section of the kapok fiber is round or oval, the middle section is thicker, the tip end 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 vary due to differences in samples collected in different literatures, but there is ...

Claims

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Application Information

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