Phenolic plastic part dyeing method

A phenolic plastic and dyeing technology, applied in dyeing, textiles and papermaking, etc., can solve the problems of long dyeing time, difficult dyeing, and insignificant dyeing effect, achieve high color fixing rate, improve dyeing effect, and dyeing effect significant effect

Inactive Publication Date: 2018-04-20
全椒县三安塑业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Phenolic plastics, commonly known as bakelite powder, are hard and brittle thermosetting plastics. Plastics based on phenolic resins are collectively called phenolic plastics. They are the most important type of thermosetting plastics and are widely used as electrical insulation materials, furniture parts, and daily necessities. , handicrafts, etc., the plastic parts made of phenolic resin have excellent mechanical properties, corrosion resistance and oxidation resistance, but there is a problem that it is difficult to dye, the dyeing time is very long, but the dyeing effect is not significant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for dyeing phenolic plastic parts, comprising the following steps:

[0018] (1) Treat the prepared phenolic plastic parts with ozone for 25 minutes;

[0019] (2) Then add the phenolic plastic parts treated in step (1) into the dyeing tank, add dyeing auxiliaries to it, raise the temperature in the tank to 55°C, keep it warm for 20 minutes, and then continue to add vat dyes into it, Continue the heat preservation treatment for 4 hours, wherein the dyeing auxiliaries are made of the following components by weight: 44 parts of sodium disulfite, 2 parts of leveling agent, 1 part of sodium oxalate, and 550 parts of water;

[0020] (3) Take out the phenolic plastic part treated in step (2), put it into an oven, and dry it for 2 hours to obtain a finished product.

[0021] Specifically, in the above step (1), during ozone treatment, the concentration of ozone is 32g / m 3 .

[0022] Specifically, in the above step (2), in the above step (2), the vat dye is indigo, an...

Embodiment 2

[0026] A method for dyeing phenolic plastic parts, comprising the following steps:

[0027] (1) Treat the prepared phenolic plastic parts with ozone for 28 minutes;

[0028] (2) Then add the phenolic plastic parts treated in step (1) into the dyeing tank, add dyeing auxiliaries to it, raise the temperature in the tank to 58°C, keep it warm for 25 minutes, and then continue to add vat dyes into it, Continue the heat preservation treatment for 4.5 hours, wherein the dyeing auxiliaries are made of the following components by weight: 50 parts of sodium disulfite, 3 parts of leveling agent, 2 parts of sodium oxalate, and 580 parts of water;

[0029] (3) Take out the phenolic plastic part treated in step (2), put it in an oven, and dry it for 2.5 hours to obtain a finished product.

[0030] Specifically, in the above step (1), during ozone treatment, the concentration of ozone is 34g / m 3 .

[0031] Specifically, in the above step (2), in the above step (2), the vat dye is vat ros...

Embodiment 3

[0035] A method for dyeing phenolic plastic parts, comprising the following steps:

[0036] (1) Treat the prepared phenolic plastic parts with ozone for 30 minutes;

[0037] (2) Then add the phenolic plastic parts treated in step (1) into the dyeing tank, add dyeing auxiliaries to it, raise the temperature in the tank to 60°C, keep it warm for 30 minutes, and then continue to add vat dyes into it, Continue the heat preservation treatment for 5 hours, wherein the dyeing auxiliaries are made of the following components by weight: 58 parts of sodium disulfite, 5 parts of leveling agent, 3 parts of sodium oxalate, and 600 parts of water;

[0038] (3) Take out the phenolic plastic part treated in step (2), put it into an oven, and dry it for 3 hours to obtain a finished product.

[0039] Specifically, in the above step (1), during ozone treatment, the concentration of ozone is 35g / m 3 .

[0040] Specifically, in the above step (2), in the above step (2), the vat dye is vat brown...

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PUM

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Abstract

The invention discloses a phenolic plastic part dyeing method which comprises the following operation steps: (1) performing ozone treatment on a formed phenolic plastic part for 25-30 min; (2) then adding the phenolic plastic part treated in the step (1) to a dye vat, adding a dyeing assistant to the dye vat, increasing the internal temperature of the dye vat to 55-60 DEG C, performing thermal insulation treatment for 20-30min, then continuing adding reductive dyestuff to the dye vat, and continuing performing thermal insulation treatment for 4-5 hours; and (3) taking out the phenolic plasticpart treated in the step (2), putting the phenolic plastic part into an oven, and performing drying treatment for 2-3 hours to obtain a finished product. The phenolic plastic part dyeing method provided by the invention is environmentally-friendly and energy-saving, can realize large-scale industrial dyeing of phenolic plastic parts, is obvious in dyeing effect, high in coloring rate, excellent inuniformity and high in fixation rate, and greatly improves the dyeing effect of the phenolic plastic parts.

Description

technical field [0001] The invention belongs to the technical field of plastic parts preparation, and in particular relates to a method for dyeing phenolic plastic parts. Background technique [0002] Phenolic resin is a large class of synthetic resins obtained by polycondensation of phenolic compounds and aldehyde compounds. Phenolic plastics, commonly known as bakelite powder, are hard and brittle thermosetting plastics. Plastics based on phenolic resins are collectively called phenolic plastics. They are the most important type of thermosetting plastics and are widely used as electrical insulation materials, furniture parts, and daily necessities. , Handicrafts, etc., the plastic parts made of phenolic resin have excellent mechanical properties, corrosion resistance, and oxidation resistance, but there is a problem that it is difficult to dye, and the dyeing time is very long, but the dyeing effect is not significant. Contents of the invention [0003] In order to solv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/22D06P1/613D06P1/653D06P1/673D06P3/58
CPCD06P1/227D06P1/228D06P1/6135D06P1/6533D06P1/673D06P1/67375D06P3/58
Inventor 梁华庆
Owner 全椒县三安塑业有限公司
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