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Pretreatment device, pretreatment solution and pretreatment method of acetic acid fiber crimps

A pretreatment device and technology of cellulose acetate, applied in the direction of fiber processing, textile material processing equipment configuration, plant fiber, etc., can solve the problems of blockage of condensate, unstable tow quality, uneven steam spray, etc. Firm curls and even curling waves

Active Publication Date: 2018-08-17
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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  • Pretreatment device, pretreatment solution and pretreatment method of acetic acid fiber crimps

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Experimental program
Comparison scheme
Effect test

Embodiment 1

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

[0027] In a preferred solution, two nozzles 9 are arranged in the spray box 8 , which are installed on the entry side of the spray box 8 of the cellulose acetate tow 10 , above and below the cellulose acetate tow 10 . The cel...

Embodiment 2

[0032] A cellulose acetate crimp pretreatment liquid, mainly deionized water, wherein the antibacterial agent is 100ppm. This pretreatment solution 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 the quality indexes of the tow.

Embodiment 3

[0034] A kind of acetate fiber crimping pretreatment solution, wherein the spinning oil is 3%, the oil film enhancer is 100ppm, the alkali is 40ppm, and the rest is water in terms of mass concentration. This formula is suitable for conventional products, when the free vinegar of the raw material vinegar slices is greater than 70 ppm, the pH value is adjusted to remove the 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 crucial impact on its performance and application. On the one hand, crimping enables the acetate fiber to obtain a larger specific surface area, better adsorption and filtration performance, and higher suction resistance of the filter rod; Physical properties and subsequent applications are negatively affected; more importantly, for higher denier acetate tows, the crimping process is almost impossible without proper pretreatment. Sour taste and mildew are another phenomenon that easily occurs in acetate fiber. Although antibacterial agents such as hydrogen peroxide can be added to the spinning oil, it often cannot completely solve the problem. Diacetate slices, by themselves, have a s...

Claims

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Application Information

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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