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Transversal vacuum shaping process of polyamide fishing net

A technology for vacuum setting and fishing nets, which is used in textiles and papermaking, liquid/gas/vapor textile material processing, textile material processing, etc. Knot loosening and other problems, to achieve the effect of tight molecular structure, reduced retraction rate and good resilience

Active Publication Date: 2013-06-12
巢湖市强力渔业有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the difference in process and process parameters, there are great differences in technical effects, including possible loose knots of fishing nets, lack of gloss, flatness and excessive volume, etc., although some shaping kettles have passed through High-temperature setting can achieve this purpose but cannot guarantee the chemical structure of the nylon of the fishing net. A large amount of water molecules enter the nylon filament during high-temperature setting, which will cause the silk powder to rot over time.

Method used

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Embodiment Construction

[0014] The characteristics of the nylon fishing net horizontal vacuum shaping process in this embodiment include the following steps:

[0015] 1. Fix the woven mesh on the mesh frame with the edge rods at both ends of the mesh, and make the length of the fishing net reach 105% of the product specification through mechanical stretching. For example, for a fishing net with a specification of 2cm, it needs to be stretched to 2.1 cm;

[0016] 2. Push the net frame together with the stretched mesh into the shaping kettle, after closing the shaping kettle, pass steam into the shaping kettle, so that the first shaping condition in the shaping kettle is steam pressure within 10 minutes: 280KPa±10KPa, temperature 135°C±2°C, the air intake time should not be too long, otherwise it will affect the quality of the fishing net. This shaping condition makes each single filament and its nodes in the shaping kettle evenly pressed and heated. Keep the first sizing condition for 3 minutes and t...

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Abstract

The invention discloses a transversal vacuum shaping process of a polyamide fishing net, which is characterized by: firstly, mechanically stretching woven net pieces so as to enable the length of the fishing net to reach 105% of the specification; and then carrying out high-temperature and high-pressure steam shaping in a shaping kettle; at last, carrying out secondary vacuum shaping. By applyingthe secondary shaping process disclosed by the invention, the fishing net is smoother in appearance, small in knots, firm in knotting, and greatly improved in glossiness, as a result, the appearance and the use performance of the fishing net are greatly improved.

Description

technical field [0001] The invention relates to a fishing net shaping process, more specifically a nylon fishing net transverse shaping process. Background technique [0002] For fishing net production enterprises, it is a well-known situation in the industry that the nylon fishing nets woven by fishing net machines need to be further sorted and processed to increase the appearance and performance of nylon fishing nets. However, due to the difference in process and process parameters, there are great differences in technical effects, including possible loose knots of fishing nets, lack of gloss, flatness and excessive volume, etc., although some shaping kettles have passed through High-temperature setting can achieve this purpose but cannot guarantee the chemical structure of the nylon of the fishing net. During high-temperature setting, a large amount of water molecules enter the nylon yarn, which will cause the silk powder to rot after a long time. Contents of the invent...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06B5/22D04C1/08
Inventor 陈晓保
Owner 巢湖市强力渔业有限责任公司
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