Method for controlling discoloration of nylon

A nylon and toner technology, applied in the nylon coloring field, can solve problems such as easy discoloration, and achieve the effects of simple operation, low price, and improved weather resistance and temperature resistance.

Inactive Publication Date: 2018-05-15
NANJING HONGRUI PLASTIC PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This technology makes it easier than previous methods because it does this by adding regular grinding without any extra steps or treating them beforehand instead of just mixing everything together at once. Additionally, there's also good results when used on other types of fibers like polyamide (PA), but they don’t work well against nylons due to their unique chemical structure that causes yellowish staining from sunlight exposure. By doing these things correctly, we can create better quality colored articles made up entirely of neon blue-green fluorescent dyes.

Problems solved by technology

The technical issue addressed by this patented technology relates how to prevent or reduce damage caused during printing on fabrics made from polyamide fibers when they come into contact with certain chemicals such as acids/alkalis. This can lead to deteriorated performance over time if exposed too much unnatural colors appear on these materials.

Method used

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  • Method for controlling discoloration of nylon
  • Method for controlling discoloration of nylon
  • Method for controlling discoloration of nylon

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Instrument: Minolta spectrometer 2600D

[0029] Raw materials: magnesia 100g, nylon (PA66): EPR27 100Kg, titanium dioxide: CR-69 400g, dye: Sumitomo Chemical H3G red 100g, silicone oil: Wacker AK12500 100g;

[0030] 1) Magnesium oxide and nylon were stirred for 12 minutes under the condition of 1200r / min;

[0031] 2) Add silicone oil to the material obtained in step 1) and stir for 8 minutes under the condition of 1400r / min;

[0032] 3) Stir the titanium dioxide with toner added to the material obtained in step 2) under the condition of 1150r / min for 20 minutes;

[0033] 4) Utilize twin-screw extruder to extrude and granulate.

[0034]

Embodiment 2

[0043] Instrument: Minolta spectrometer 2600D

[0044] Raw materials: magnesia 100g, nylon (PA66): EPR27 100Kg, titanium dioxide: CR-69 400g, dye: Clariant phthalocyanine blue 100g, silicone oil: Wacker AK12500 100g;

[0045] 1) Magnesium oxide and nylon were stirred for 12 minutes under the condition of 1200r / min;

[0046] 2) Add silicone oil to the material obtained in step 1) and stir for 8 minutes under the condition of 1400r / min;

[0047] 3) Stir the titanium dioxide with toner added to the material obtained in step 2) under the condition of 1150r / min for 20 minutes;

[0048] 4) Utilize twin-screw extruder to extrude and granulate.

[0049]

Embodiment 3

[0058] Instrument: Minolta spectrometer 2600D

[0059] Raw materials: magnesia 100g, nylon (PA66): EPR27 100Kg, titanium dioxide: CR-69 400g, dye: Sumitomo Chemical HFG orange 100g, silicone oil: Wacker AK12500 100g;

[0060] 1) Magnesium oxide and nylon were stirred for 12 minutes under the condition of 1200r / min;

[0061] 2) Add silicone oil to the material obtained in step 1) and stir for 8 minutes under the condition of 1400r / min;

[0062] 3) Stir the titanium dioxide with toner added to the material obtained in step 2) under the condition of 1150r / min for 20 minutes;

[0063] 4) Utilize twin-screw extruder to extrude and granulate.

[0064]

[0065]

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PUM

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Abstract

The invention discloses a method for controlling discoloration of nylon. The method comprises the following steps: firstly, uniformly stirring magnesium oxide and nylon; secondly, adding organic silicone oil, with the mass being 0.01+/-0.001 percent of that of nylon, into a material formed in the first step, and uniformly stirring; thirdly, uniformly stirring titanium dioxide of a material formedin the second step with toner being added; fourthly, performing extrusion granulation through a double-screw extruder. The method is simple to operate, adding is performed directly during normal production and granulation, and excessive operation processes are not required to be additionally added; the use effect is good, discoloration of nylon color blended products is effectively prevented, andthe weather resistance and the temperature resistance of nylon products are improved; the price is low, raw materials are easy to get, the price is low, and the method is simple and convenient compared to the manufacture of novel coloring agent aiming at characteristics of nylon; the negative effect on the mechanical properties of nylon cannot be caused.

Description

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Owner NANJING HONGRUI PLASTIC PROD
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