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Method for improving dyeing efficiency of fishing net

A fishing net and high efficiency technology, applied in the field of improving fishing net dyeing efficiency, can solve the problems of affecting the use effect of fishing nets, slow dyeing speed, weak staining, etc., to improve fading fastness, not easy to fade, improve staining fastness and Effect of Dyeing Efficiency

Inactive Publication Date: 2018-12-18
CHAOHU YULANG FISHING GEAR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When it is used as a fishing net, it usually needs to go through a dyeing process to enhance the use effect of the fishing net. However, the traditional fishing net dyeing method has a slow dyeing rate, and is easy to fade, staining is not firm, and it is easy to cause seawater pollution and affect the use effect of the fishing net.

Method used

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  • Method for improving dyeing efficiency of fishing net

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A method for improving fishing net dyeing efficiency is characterized in that it comprises the following steps:

[0019] (1) Put the fishing net into the composite dyeing solution, raise the temperature to 40°C, stir at 300 rpm for 20 minutes, then take it out, drain off the excess composite dyeing solution, and transfer the obtained fishing net into the reaction kettle;

[0020] (2) Put steam into the reaction kettle, the steam pressure is 200KPa, the temperature is 120°C, keep it for 30min, then discharge the steam, and evacuate to -0.08MPa, cool down to -10°C, and treat for 1h;

[0021] (3) Repeat the operation of step (2) 3 times, and finally place it at 60°C for 5 hours, wash it with clean water for 3 times, spray it with 3% chitosan solution, and put the fishing net at 30°C after spraying evenly Just tumble dry.

[0022] Further, the composite dyeing liquid in step (1) is made of cationic dyes, castor oil, nano diatomaceous earth, polyvinyl alcohol, calcium ligno...

Embodiment 2

[0029] A method for improving fishing net dyeing efficiency is characterized in that it comprises the following steps:

[0030] (1) Put the fishing net into the composite dyeing solution, raise the temperature to 45°C, stir at 350 rpm for 25 minutes, then take it out, drain off the excess composite dyeing solution, and transfer the obtained fishing net into the reaction kettle;

[0031] (2) Put steam into the reaction kettle, the steam pressure is 220KPa, the temperature is 123°C, keep it for 40min, then discharge the steam, and evacuate to -0.09MPa, cool down to -13°C, and treat for 2h;

[0032] (3) Repeat the operation of step (2) 4 times, and finally place it at 65°C for 8 hours, wash it with water for 4 times, spray it with 5% chitosan solution, and put the fishing net at 35°C after spraying evenly Just tumble dry.

[0033] Further, the composite dyeing liquid in step (1) is made of cationic dyes, castor oil, nano diatomaceous earth, polyvinyl alcohol, calcium lignosulfon...

Embodiment 3

[0040] A method for improving fishing net dyeing efficiency is characterized in that it comprises the following steps:

[0041] (1) Put the fishing net into the composite dyeing solution, raise the temperature to 50°C, stir at 400rpm for 30 minutes, then take it out, drain off the excess composite dyeing solution, and transfer the obtained fishing net into the reaction kettle;

[0042] (2) Put steam into the reaction kettle, the steam pressure is 250KPa, the temperature is 125°C, keep for 60min, then discharge the steam, and vacuumize to -0.1MPa, cool down to -15°C, and treat for 2h;

[0043] (3) Repeat the operation of step (2) 4 times, and finally place it at 70°C for 10 hours, wash it with water for 5 times, spray it with 6% chitosan solution, and put the fishing net at 40°C after spraying evenly Just tumble dry.

[0044] Further, the composite dyeing liquid in step (1) is made of cationic dyes, castor oil, nano diatomaceous earth, polyvinyl alcohol, calcium lignosulfonate...

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Abstract

The invention discloses a method for improving the dyeing efficiency of a fishing net, the method has high dyeing efficiency and low half-dyeing time, and the fading fastness and the staining fastnessof the dyed fishing net are effectively improved. By use of steam to treat the fishing net under high temperature and high pressure and low temperature and vacuum, internal gaps of the fishing net can be fully opened, dye molecules immerse quickly, the half-dyeing time of the fishing net can be reduced, the staining fastness and dyeing efficiency can be improved, and the existence of castor oil can make the surface of the fishing net soaked, prolongs the residence time of the dye molecules and improves the dyeing fastness; nano diatomite can enter the internal gaps of the fishing net to firmly lock the dye molecules to make the fishing net not easy to fade so as to improve the fading fastness and the use effect of the fishing net; finally a chitosan solution is used to spray the fishing net and form a film protective layer on the surface of the fishing net, can improve the fading fastness of the fishing net, makes the fishing net smooth and prevents fluffing.

Description

technical field [0001] The invention belongs to the technical field of fishing net dyeing, in particular to a method for improving the dyeing efficiency of fishing nets. Background technique [0002] Nylon 6 (referred to as PA6), which is polymerized from caprolactam, is the final product of the petroleum industry, and it is also a type of basic resin with the largest output, the most varieties, the widest range of uses, and excellent comprehensive performance among the five general-purpose engineering plastics. The molecular weight of nylon 6 for engineering is generally between 15,000 and 30,000. It has good mechanical strength, high softening point, heat resistance, oil resistance, weak acid resistance, alkali resistance and general solvent resistance, good electrical insulation, non-toxic, non-toxic Odor, weather resistance, good dyeability, low friction coefficient, and excellent processing and forming characteristics, the existing fishing nets are usually made of this ...

Claims

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Application Information

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IPC IPC(8): D06P1/651D06P1/52D06P1/48D06P5/08
CPCD06P1/48D06P1/5228D06P1/6515D06P5/08
Inventor 班叶志
Owner CHAOHU YULANG FISHING GEAR CO LTD
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