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Continuous liquid ammonia finishing and processing device and method for improving hydrophilicity of cotton non-woven fabric

A liquid ammonia finishing and processing device technology, which is applied in the processing of textile materials, the configuration of equipment for processing textile materials, and the processing of liquid/gas/steam textile materials, etc. problem, to achieve the effect of promoting the loosening of the fiber structure, increasing the hydrophilicity and smoothness, and feeling soft and plump

Active Publication Date: 2021-11-05
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are a variety of plant pigments, organic acids and sugars in the plant hydrophilic agent of the above patent, which can easily cause adverse effects on the color and structure of the non-woven fabric and reduce product quality.

Method used

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  • Continuous liquid ammonia finishing and processing device and method for improving hydrophilicity of cotton non-woven fabric
  • Continuous liquid ammonia finishing and processing device and method for improving hydrophilicity of cotton non-woven fabric
  • Continuous liquid ammonia finishing and processing device and method for improving hydrophilicity of cotton non-woven fabric

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Embodiment 1 provides a kind of continuous liquid ammonia finishing processing method that improves the hydrophilicity of cotton non-woven fabrics and comprises the following steps:

[0048] S1: The cotton non-woven fabric is clamped and conveyed to the cooling box 1 by the conveying roller group 4 with low tension, and the cotton non-woven fabric is submerged in the liquid ammonia. The impregnation treatment time of the cotton non-woven fabric is 1min. The structure is loose under the impregnation of liquid ammonia, and the loose cotton non-woven fabric is not easy to be stretched or even broken under low tension;

[0049] S2: The cotton non-woven fabric is clamped and conveyed to the washing box 2 by the transmission roller group 4 with low tension. The temperature of the washing liquid is 80°C. The cotton non-woven fabric is washed by the washing liquid for 2 minutes, and the cotton non-woven fabric is removed. Attached liquid ammonia, the fiber structure of the cott...

Embodiment 2-3

[0053] The difference between Embodiment 2-3 and Embodiment 1 is only that the time of immersion treatment in liquid ammonia in step S1 is different, and other conditions are basically the same, which will not be repeated here. The processing time and test result record of embodiment 2-3 are as shown in table 1.

Embodiment 4-6

[0064] The difference between Examples 4-6 and Example 1 is only that the temperature and washing time of the washing liquid of the cotton non-woven fabric are different in step S1, and other conditions are basically the same, and will not be repeated here. The details are shown in Table 2.

[0065] Table 2 embodiment 4-6 process parameter and performance test result

[0066] Example Washing liquid temperature / ℃ Washing time / min Water droplet diffusion time / s Example 4 60 3 39 Example 5 80 4 35 Example 6 100 5 29

[0067] From the experimental results of Examples 4-6, it can be seen that the cotton non-woven fabric treated with loose-type low-tension liquid ammonia, when the washing temperature is 60-100°C and the washing time is 3-5min, the As the washing time increases, the hydrophilicity of cotton non-woven fabrics also increases.

[0068] In summary, the present invention adopts the continuous loose-type low-tension treatment p...

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Abstract

The invention provides a continuous liquid ammonia finishing and processing device and method for improving the hydrophilicity of a cotton non-woven fabric. The finishing and processing device comprises a cooling box, a washing box, a drying box, a plurality of conveying roller sets, a driving assembly and a control assembly which are sequentially arranged in the conveying direction so as to realize continuous processing of the cotton non-woven fabric. The cooling box is provided with an air bag type sealing device and used for containing liquid ammonia and dipping the cotton non-woven fabric; the washing box contains washing liquid and is used for removing the liquid ammonia on the cotton non-woven fabric; the drying box is used for drying the cotton non-woven fabric; and the control assembly can independently control the rotating speed of the driving assembly, so that the cotton non-woven fabric between every two adjacent conveying roller sets can naturally droop, loose low-tension processing is achieved, and the structure and performance of the cotton non-woven fabric are prevented from being damaged. The cotton non-woven fabric is subjected to liquid ammonia dipping and slack treatment, so that the hydrophilicity and smoothness of the cotton non-woven fabric are improved, and the cotton non-woven fabric is soft and full in hand feeling and rich in elasticity; and liquid ammonia treatment is adopted, and no chemical reagent is introduced, so that the advantages of environmental protection and low energy consumption are achieved.

Description

technical field [0001] The invention relates to the technical field of nonwoven fabric processing, in particular to a continuous liquid ammonia finishing and processing device and method for improving the hydrophilicity of cotton nonwoven fabric. Background technique [0002] Non-woven fabric is a kind of non-woven fabric, which directly uses polymer chips, short fibers or filaments to form fibers through airflow or machinery, and then undergoes hydroentanglement, needle punching, or hot rolling reinforcement, and finally finishes finishing. The formed non-woven fabric, cotton non-woven fabric refers to a non-woven fabric made of natural cotton fibers. The advantage of non-woven fabric is that it does not produce lint, is strong, durable, silky soft, has a cotton feel, is also a kind of reinforcing material, and is cheap to manufacture. Hydrophilic non-woven fabric is a kind of non-woven fabric with good hydrophilic performance that adds hydrophilic agent in the production ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06B3/10D06B23/20D06B15/09D06B23/18
CPCD06B3/10D06B23/20D06B15/09D06B23/18Y02P70/62
Inventor 徐卫林王运利韩晓玉黄宏博韩宗保马冬冬
Owner WUHAN TEXTILE UNIV
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