A plastic deinking agent for woven bags

A technology of deinking agent and woven bag, applied in the field of plastic deinking agent for woven bags, can solve the problems of deinking of waste woven bags, low production efficiency, low profit, etc. strong effect

Active Publication Date: 2021-08-10
HENAN HAILI CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The recycling process of waste plastics mainly includes four steps: cleaning, crushing, granulating, and reprocessing and utilization. Among them, cleaning is the first step. The scope of application is small and the added value of the product is low, which is not conducive to the development of the waste plastic recycling industry
Most of the existing woven bags are printed with patterned text, and the ink used in the patterned text has strong adhesion fastness, and it is difficult to make it fall off by hand or simple physical methods.
When recycling waste woven bags, if the ink on the waste woven bags is not cleaned, the particles produced will be black or dark in color, and the price per ton is about 5,000, which is low and less profitable; Cutting off the white part for granulation processing can be recycled, but it will cost a lot of manpower and material resources, and the production efficiency is low; and the ink on the waste woven bag is cleaned before granulation, and the produced granules are white , the price per ton can be increased to seven or eight thousand yuan, and the price difference between before and after cleaning per ton is at least two thousand yuan, which greatly increases the profit of the manufacturer
However, the existing plastic deinking agents on the market cannot effectively remove the ink with strong adhesion and some dirt on the woven bags during use, and are not suitable for deinking waste woven bags, and the existing deinking agents It also contains alkylphenol polyoxyethylene ether, which does not meet the requirements of green environmental protection

Method used

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  • A plastic deinking agent for woven bags

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A plastic deinking agent for woven bags, which is prepared from the following raw materials in parts by weight: 10-15 parts of fatty alcohol polyoxyethylene ether, 40-50 parts of fatty alcohol block polyether, 1-50 parts of polyether defoamer 3 parts, 1-2 parts of aliphatic alcohol ether, 3-5 parts of acrylic acid homopolymer, 60-70 parts of water. Wherein, the fatty alcohol polyoxyethylene ether is synthesized by fatty alcohol and 7mol or 9mol of ethylene oxide, and the carbon chain length of the fatty alcohol is C 12 -C 14, In the block of the fatty alcohol block polyether, ethylene oxide is located in the middle, and propylene oxide is located at the end. The number of ethylene oxide is 5-15, and the number of propylene oxide is 1-8. The fat The carbon chain length of the fatty alcohol of the alcohol block polyether is C 8 -C 14, The molecular weight of the acrylic acid homopolymer is 4000-5000, the solid content is 43.0-47.0%, and the pH value is 7.5-8.5.

[002...

Embodiment 2

[0023] A plastic deinking agent for woven bags, which is prepared from the following raw materials in parts by weight: 12.5 parts of fatty alcohol polyoxyethylene ether, 55 parts of fatty alcohol block polyether EH-8033, polyether defoamer DF663 2 parts, aliphatic alcohol ether JMC-50 1.5 parts, BASF polymer PA25CL 4 parts, water 65 parts. Wherein, the fatty alcohol polyoxyethylene ether is synthesized by fatty alcohol and 7mol of ethylene oxide, and the carbon chain length of the fatty alcohol is C 12 -C 14 .

[0024] The preparation method of described woven bag plastic deinking agent comprises the following steps:

[0025] Add the above weight parts of fatty alcohol polyoxyethylene ether, fatty alcohol block polyether EH-8033, fatty alcohol ether JMC-50, and BASF polymer PA25CL into the above weight parts of water, and after completely dissolving, add the above Stir the polyether defoamer DF663 in parts by weight until completely dissolved.

Embodiment 3

[0027] A plastic deinking agent for woven bags, which is prepared from the following raw materials in parts by weight: 14 parts of fatty alcohol polyoxyethylene ether, 42 parts of fatty alcohol block polyether, and 2.5 parts of polyether defoamer DF663 , 1.2 parts of aliphatic alcohol ether JMC-50, 3.3 parts of BASF polymer PA25CL, and 68 parts of water. Wherein, the fatty alcohol polyoxyethylene ether is synthesized by fatty alcohol and 9mol of ethylene oxide, and the carbon chain length of the fatty alcohol is C 12 -C 14 , in the block of the fatty alcohol block polyether, ethylene oxide is located in the middle, and propylene oxide is located at the end, the number of the ethylene oxide is 15, and the number of the propylene oxide is 8, and the fatty alcohol block The carbon chain length of the fatty alcohol of the polyether is C 8 -C 14 . Concrete preparation method is with embodiment 2.

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Abstract

The invention provides a plastic deinking agent for woven bags, which is prepared from the following raw materials in parts by weight: 10-15 parts of fatty alcohol polyoxyethylene ether, 40-50 parts of fatty alcohol block polyether, polyether disinfectant 1-3 parts of foaming agent, 1-2 parts of aliphatic alcohol ether, 3-5 parts of acrylic acid homopolymer, 60-70 parts of water. The plastic deinking agent for woven bags provided by the invention has the functions of emulsifying, wetting, dispersing and stripping the ink on the waste woven bags, can effectively destroy the adhesion of the ink to the waste woven bags, and remove the ink on the waste woven bags. The ink or dirt is washed away and the stripped ink will not be deposited on the woven bag again, and the deinking agent has low foam, easy to clean, can be recycled, and has high cost performance.

Description

technical field [0001] The invention relates to the technical field of deinking agents, in particular to a plastic deinking agent for woven bags. Background technique [0002] Plastic has been born for a hundred years and is widely used in industrial and agricultural production, building materials, home appliances, electronic appliances, packaging and other fields. Plastic products have already become an integral part of people's daily life. Most plastics are renewable and are typical resource-saving and environment-friendly materials. Recycling waste plastics can eliminate white pollution and purify the environment on the one hand, and save resources on the other hand, creating huge economic benefits. Relevant experts believe that the high value of plastic recycling is the research result of Kechuang's independent intellectual property rights. It follows the idea of ​​circular economy and effectively saves a lot of resources. It has a positive and significant role in promot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D9/04
CPCC09D9/04
Inventor 汤培远田东亮邢爱乐
Owner HENAN HAILI CHEM TECH
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