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Acetate fiber crimp pretreatment device, pretreatment liquid and pretreatment method

A technology of acetate fiber and pretreatment liquid, which is applied in fiber treatment, textile material processing equipment configuration, plant fiber, etc., can solve the problems of unstable tow quality, condensed water blockage, uneven steam injection, etc., and achieve firm curl setting , sour taste reduction, curly wave uniform effect

Active Publication Date: 2019-10-11
HUBEI XINYANG SPECIAL FIBER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, we tried and compared other methods to reduce the crimp modulus, such as steam injection, steam injection or condensate blockage due to small steam flow, resulting in uneven steam injection, or overheating due to large steam flow, resulting in unstable tow quality

Method used

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  • Acetate fiber crimp pretreatment device, pretreatment liquid and pretreatment method

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Effect test

Embodiment 1

[0026] Example 1: Such as figure 1 As shown, an cellulose acetate crimping pretreatment device includes a pretreatment liquid tank 1, and the bottom is connected to a spray system through a pipe through a flow meter 6, which can accurately control the nozzle flow rate. The spray system includes a spray box 8 and a nozzle 9. 9 is also connected with a compressed air pipeline; the acetate tow 10 to be processed penetrates the spray box 8; the pretreatment liquid tank 1 is also provided with a temperature sensor 4 and an electric heating tube 3, and the temperature sensor 4 and the electric heating tube 3 are both connected To the thermostat 5, the temperature of the pretreatment liquid can be accurately controlled.

[0027] In a preferred solution, two nozzles 9 are provided in the spray box body 8, which are installed on the entrance side of the acetate fiber tow 10 of the spray box body 8, above and below the acetate fiber tow 10. The acetate tow is processed synchronously throu...

Embodiment 2

[0032] A pretreatment liquid for cellulose acetate crimping, mainly deionized water, in which the bacteriostatic agent is 100 ppm. This pretreatment liquid is used for conventional products, and other process conditions remain unchanged. After spraying, the crimping energy of the tow remains unchanged, and the breaking strength increases by 2N / ktex: if the crimping machine is adjusted to maintain the same breaking strength, the crimping energy increases by 20g.cm / cm or so. Among them, "crimp energy" and "breaking strength" are quality indicators of tow.

Embodiment 3

[0034] A pretreatment liquid for cellulose acetate crimping. According to the mass concentration, the spinning oil is 3%, the oil film enhancer is 100ppm, the alkali is 40ppm, and the rest is water. This formula is suitable for adjusting the pH value of conventional products and raw material vinegar tablets when the free vinegar is greater than 70 ppm to eliminate sour taste.

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PUM

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Abstract

The invention discloses a pretreatment device, a pretreatment solution and a pretreatment method of acetic acid fiber crimps. Crimp modulus is reduced when tows accept the crimping process to improvefiber elongation, reduce crimp damage and enhance the effect of crimp forming through a pretreatment method of acetate tows corresponding to a fiber crimping process. The pretreatment method includesa spray device, a temperature control system, a micro flow control unit, an atomizing gas circulation device, which can obtain uniform and stable spray before a ribbon entering a crimping machine. Theprovided solution matching spray system can aim at existing problems in the crimping process and add various additives purposefully to achieve the effects that cannot be achieved by traditional steamspray, such as adding lubrication, adjusting external oil content, improving beam performance, preventing vitrification tendency and reducing crimp damage.

Description

Technical field [0001] The invention relates to the field of acetate fiber spinning, in particular to an acetate fiber crimping pretreatment device, a pretreatment liquid and a pretreatment method. Background technique [0002] The crimping process of acetate fiber is very important and has a vital influence on its performance and application. On the one hand, crimping makes the acetate fiber obtain a larger specific surface area, better adsorption and filtration performance, and higher suction resistance of the filter rod; on the other hand, crimping causes the fiber surface to be subjected to strong friction and shear to form crimp damage, which Physical properties and subsequent applications have a negative impact; more importantly, for acetate tows with a higher single denier, without proper pretreatment, the crimping process is almost impossible to implement. Sour taste and mildew are another phenomenon that cellulose acetate easily occurs. Although it is possible to add ba...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06B1/02D06B23/20D06B23/22D06M13/127D06M11/76D06M15/53D06M13/224D06M101/06
Inventor 叶兆清胡志钢
Owner HUBEI XINYANG SPECIAL FIBER CO LTD