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A kind of production process of PSA self-adhesive for bopp

A production process, deionized water technology, applied in the direction of adhesive types, ester copolymer adhesives, etc., can solve the problems of waste, high manufacturing cost, difficult recycling, etc., to save energy consumption, ingenious and perfect process, save energy cost effect

Active Publication Date: 2017-06-30
JIANGSU GUOJIAO CHEM TECH
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AI Technical Summary

Problems solved by technology

[0002] In the past, in the production process of isooctyl acrylate, waste water was produced, which contained some useful substances, and it was difficult to recycle, and non-recycling caused waste and pollution. At the same time, the production cost of self-adhesive was high in the past

Method used

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Embodiment Construction

[0014] A kind of production technology of PSA self-adhesive for BOPP, be specifically in the following steps:

[0015] 1) First confirm that the raw materials are 5kg of emulsifier, 5.5 kg of acrylic acid, 10 kg of hydroxypropyl acrylate, 480 kg of butyl acrylate, 20 kg of isooctyl acrylate, 180 kg of deionized water; 200Kg of deionized water in the reactor, pre-emulsion The ionized water used and the deionized water in the reactor are all waste reuse, which saves energy, reduces costs, and improves reaction efficiency;

[0016] 2) Pump the above raw materials into the pre-emulsification tank and stir for 30 minutes;

[0017] 3) Add the above-mentioned emulsified solution to the reaction kettle dropwise, and react for 3 hours. The reaction kettle contains 200kg of deionized water before dropping; the deionized water in the reaction kettle is reused as condensed water.

[0018] 4) After the dropping reaction is completed, the glue is finished.

[0019] The preparation steps o...

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PUM

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Abstract

The invention relates to a production process of PSA adhesive sticker used for BOPP. The production process comprises the steps of confirming raw materials, namely 5 kg of emulgator, 5.5 kg of crylic acid, 10 kg of hydroxy-propyl acrylate, 480 kg of butyl acrylate, 20 kg of ethylhexyl acrylate and 180 kg of deionized water; putting the raw materials into a pre-emulsified kettle and stirring the raw materials for 30 minutes; adding the emulsive solution and 10 kg of 10% ammonium persulfate solution into a reaction still simultaneously drop by drop for reaction for 3 hours, wherein the adding temperature ranges from 82-84 DEG C, adding 200 kg of deionized water into the reaction still, heating to be at 82 DEG C, and adding pre-emulsion drop by drop; after the adding reaction is finished, obtaining a glue finished product. The process has the advantages that the process is ingenious and perfect, the condensate water utilized by rectifying column steam in the ethylhexyl acrylate production process is used for producing the adhesive sticker, the waste water generated in the ethylhexyl acrylate serves as pre-emulsion, the residual monomers in the water are utilized sufficiently, the environment protection is achieved, the waste water does not need to be processed, the energy consumption is saved, and the cost is saved.

Description

technical field [0001] The invention relates to the field of self-adhesive production, in particular to a production process of PSA self-adhesive for BOPP. Background technique [0002] In the past, in the production process of isooctyl acrylate, waste water was generated. The waste water contained some useful substances, which were difficult to recycle. Failure to recycle caused waste and pollution. At the same time, the production cost of self-adhesive adhesives was high in the past. Contents of the invention [0003] In order to solve the above-mentioned problems of the invention, the present invention proposes a production process of PSA stickers for BOPP. The process is simple and ingenious. The wastewater produced in the production of isooctyl acrylate is used to produce stickers, which saves costs, reduces waste and pollution. [0004] In order to achieve the above-mentioned purpose of the invention, the present invention proposes the following technical solutions: ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F220/18C08F220/06C08F220/28C08F2/24C09J133/08
Inventor 张孝俤王翠冈马海建俞健钧
Owner JIANGSU GUOJIAO CHEM TECH
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