CN104263257A - Preservative protective adhesive for PS/CTP plates and preparation method of preservative protective adhesive - Google Patents

Abstract

The invention relates to the field of PS/CTP printing and specifically relates to a preservative protective adhesive for PS/CTP plates and a preparation method of the preservative protective adhesive. The protective adhesive is prepared from the following raw materials in parts by weight: 1-3 parts of polyethylene oxide, 4-6 parts of pectin, 1-3 parts of lithium bentonite, 1-2 parts of non-ionic water-soluble cellulose ether, 5-8 parts of glycerol, 60-80 parts of deionized water, 1-3 parts of sodium hexametaphosphate and 1-2 parts of additives. The protective adhesive provided by the invention has good uniform coating property and film-forming property and strong bonding capacity, and can effectively isolate the surface of the plate from air so as to prevent the surface of the plate from being oxidized and scratched; sodium hexametaphosphate can effectively prevent a metal oxide in a blank part of the surface of the plate from being corroded and assist a protective film in keeping good hydrophilicity; by further combining with the additives and other components, the protective adhesive can effectively protect the surface of the plate and improve the printing efficiency and quality; the protective adhesive is non-toxic and environment-friendly, does not corrode equipment, has stable performance, is less prone to corrosion during storage, and is easy to clean without residues.

Description

A kind of anticorrosion PS version/CTP version protecting glue and preparation method thereof

Technical field

The present invention relates to CTP print field, be specifically related to a kind of anticorrosion PS version/CTP version protecting glue and preparation method thereof.

Background technology

CTP is the abbreviation of Computer To Plate technology; have good plate-making performance; apply more and more extensive; CTP version needs to be coated with protecting glue on the sheet material of exposure imaging in printing process; to reach the protection to the space of a whole page; prevent scuffing, set-off; ensure effect of printing quality; therefore; need the protecting glue that preparation performance is excellent; it all will can meet need of production in coating homogeneity, rate of drying, drying temperature, rete density and cleaning are residual, could fundamentally reach gratifying protected effect, not affect printing quality simultaneously.

Summary of the invention

The object of the invention is to, provide a kind of anticorrosion PS version/CTP version protecting glue and preparation method thereof, to achieve these goals, the technical solution used in the present invention is as follows:

A kind of anticorrosion PS version/CTP version protecting glue and preparation method thereof, it is characterized in that, this protecting glue is made up of the raw material of following weight part: polyoxyethylene 1-3, pectin 4-6, lithium bentonite 1-3, non-ionic water-soluble cellulose ether 1-2, glycerine 5-8, deionized water 60-80, Sodium hexametaphosphate 99 1-3, auxiliary agent 1-2;

Described auxiliary agent is made up of the raw material of following weight part: nano diatomite 2-4, N-Methyl pyrrolidone 1-2, PFPE 3-5, deionized water 8-10, hyaluronic acid 1-2, alkyl glycoside 1-3, preparation method is: be first dissolved in deionized water by N-Methyl pyrrolidone, hyaluronic acid, alkyl glycoside, add PFPE, be stirred to it to disperse to form stable emulsion completely, finally add nano diatomite, after continuing dispersed with stirring 30-40min, material is ground 1-2h, the slurry of gained is condensed into paste at 50-60 DEG C of temperature, to obtain final product.

Described one anticorrosion PS version/CTP version protecting glue and preparation method thereof, its preparation method is:

(1) first get the deionized water of 50-60 weight part, be heated to 40-50 DEG C, drop into polyoxyethylene, pectin, non-ionic water-soluble cellulose ether, be uniformly mixed with the rotating speed of 400-500 rev/min and dissolve dispersion completely to mixture, obtain material A for subsequent use;

(2) be dissolved in remaining deionized water by Sodium hexametaphosphate 99, then add glycerine and lithium bentonite, be uniformly mixed 3-4h, material is abundant swelling dispersion in water, obtains material B for subsequent use;

(3) material B is slowly added in material solution A, and do not stop to stir with the speed of 400-500 rev/min, after treating that B material adds, mixture continues to be uniformly mixed 3-5h with the speed of 800-1000 rev/min again, 400 mesh sieves crossed by gained material, and filtrate vanning gets product.

The beneficial effect of protecting glue of the present invention is: have good levelling property and film-forming properties, viscosifying power is strong, can effectively the space of a whole page and air exclusion, the space of a whole page is prevented to be oxidized, scratch, the Sodium hexametaphosphate 99 disperseed in solution can effectively prevent the metal oxide of space of a whole page blank parts from corroding, and auxiliary protection film keeps good wetting ability, be combined with auxiliary film forming again, accelerate auxiliary agent and other composition of dry effect, make protecting glue of the present invention effectively can protect the space of a whole page, thus improve printing efficiency and quality, this protecting glue asepsis environment-protecting, not etching apparatus, stable performance, not easily corrupt during storage, be easy to cleaning do not remain.

Embodiment

Embodiment

The protecting glue of the present embodiment is made up of the raw material of following weight part: polyoxyethylene 2, pectin 6, lithium bentonite 2, non-ionic water-soluble cellulose ether 1, glycerine 8, deionized water 80, Sodium hexametaphosphate 99 2, auxiliary agent 1.5.

Wherein auxiliary agent is made up of the raw material of following weight part: nano diatomite 3, N-Methyl pyrrolidone 1, PFPE 5, deionized water 10, hyaluronic acid 1, alkyl glycoside 2, preparation method is: be first dissolved in deionized water by N-Methyl pyrrolidone, hyaluronic acid, alkyl glycoside, add PFPE, be stirred to it to disperse to form stable emulsion completely, finally add nano diatomite, after continuing dispersed with stirring 40min, material is ground 1.5h, the slurry of gained is condensed into paste at 50-60 DEG C of temperature, to obtain final product.

The preparation method of this protecting glue is:

(1) first get the deionized water of 60 weight parts, be heated to 40-50 DEG C, drop into polyoxyethylene, pectin, non-ionic water-soluble cellulose ether, be uniformly mixed with the rotating speed of 500 revs/min and dissolve dispersion completely to mixture, obtain material A for subsequent use;

(2) be dissolved in remaining deionized water by Sodium hexametaphosphate 99, then add glycerine and lithium bentonite, be uniformly mixed 4h, material is abundant swelling dispersion in water, obtains material B for subsequent use;

(3) slowly added in material solution A by material B, and do not stop to stir with the speed of 500 revs/min, after treating that B material adds, mixture continues to be uniformly mixed 4h with the speed of 800 revs/min again, and 400 mesh sieves crossed by gained material, and filtrate vanning gets product.

First this protecting glue is diluted with water to required pH value and viscosity during use, then draw this product with clean rag or sponge, consumption is about 1m³/ 45mL, alternately expires version even spread in length and breadth, and coating terminates rear drying.

Claims (2)

1. anticorrosion PS version/CTP version protecting glue and preparation method thereof, it is characterized in that, this protecting glue is made up of the raw material of following weight part: polyoxyethylene 1-3, pectin 4-6, lithium bentonite 1-3, non-ionic water-soluble cellulose ether 1-2, glycerine 5-8, deionized water 60-80, Sodium hexametaphosphate 99 1-3, auxiliary agent 1-2;

Described auxiliary agent is made up of the raw material of following weight part: nano diatomite 2-4, N-Methyl pyrrolidone 1-2, PFPE 3-5, deionized water 8-10, hyaluronic acid 1-2, alkyl glycoside 1-3, preparation method is: be first dissolved in deionized water by N-Methyl pyrrolidone, hyaluronic acid, alkyl glycoside, add PFPE, be stirred to it to disperse to form stable emulsion completely, finally add nano diatomite, after continuing dispersed with stirring 30-40min, material is ground 1-2h, the slurry of gained is condensed into paste at 50-60 DEG C of temperature, to obtain final product.

2. a kind of anticorrosion PS version/CTP version protecting glue as claimed in claim 1 and preparation method thereof, its preparation method is:

(1) first get the deionized water of 50-60 weight part, be heated to 40-50 DEG C, drop into polyoxyethylene, pectin, non-ionic water-soluble cellulose ether, be uniformly mixed with the rotating speed of 400-500 rev/min and dissolve dispersion completely to mixture, obtain material A for subsequent use;

(2) be dissolved in remaining deionized water by Sodium hexametaphosphate 99, then add glycerine and lithium bentonite, be uniformly mixed 3-4h, material is abundant swelling dispersion in water, obtains material B for subsequent use;

(3) material B is slowly added in material solution A, and do not stop to stir with the speed of 400-500 rev/min, after treating that B material adds, mixture continues to be uniformly mixed 3-5h with the speed of 800-1000 rev/min again, 400 mesh sieves crossed by gained material, and filtrate vanning gets product.