CN104263094A

CN104263094A - Protective glue for wear-resistant long-acting CTP (Computer to Plate) and preparation method of protective glue

Info

Publication number: CN104263094A
Application number: CN201410466909.6A
Authority: CN
Inventors: 王贵东; 宋睿
Original assignee: Hefei Ring Macromolecular Material Factory
Current assignee: Hefei Ring Macromolecular Material Factory
Priority date: 2014-09-15
Filing date: 2014-09-15
Publication date: 2015-01-07

Abstract

The invention relates to the field of PS/CTP (Computer to Plate) printing and particularly relates to protective glue for wear-resistant long-acting CTP and a preparation method of the protective glue. The protective glue is prepared from the following raw materials in parts by weight: 2-3 parts of Arabic gum, 1-3 parts of peach gum, 2-4 parts of polyvinyl alcohol, 1-2 parts of carboxymethyl chitosan, 0.2-0.5 part of organic bentonite, 10-15 parts of propylene glycol, 50-60 parts of deionized water, 0.01-0.02 part of nano diamond, 0.1-0.2 part of tween 80 and 1-2 parts of auxiliaries. The proactive glue provided by the invention is good in equalization. The organic bentonite can be used for improving the thixotropy and the thermal stability of sol, so that the coating performance is improved. The nano diamond powder has high heat conductivity and low frictional coefficient, so that a glue solution is dried in an accelerating manner, and thus the abrasion to the plate surface is reduced and the printing resistance of the plate surface is improved. The protective glue is free from toxicity, environmental friendly, convenient to prepare, easy to clean and time- and labor-saving when used.

Description

A kind of wear-resistant long-acting 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 wear-resistant long-acting 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 wear-resistant long-acting 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 wear-resistant long-acting 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: gum arabic 2-3, peach gum 1-3, polyvinyl alcohol 2-4, cm-chitosan 1-2, organobentonite 0.2-0.5, propylene glycol 10-15, deionized water 50-60, Nano diamond 0.01-0.02, tween 80 0.1-0.2, 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 is wear-resistant long-acting CTP version protecting glue and preparation method thereof, its preparation method is:

(1) first get the deionized water of 20-30 weight part, be heated to 40-50 DEG C, drop into gum arabic, peach gum, stir 12-14h with the rotating speed of 400-500 rev/min, obtain material A for subsequent use;

(2) by organobentonite, Nano diamond and tween 80, mixed with propylene glycol grinding distribution 20-30min, B is obtained for subsequent use;

(3) remaining deionized water is added in reaction vessel, be heated to 50-60 DEG C, add other leftover materials, first with the speed mix and blend 2-3h of 400-500 rev/min, add material A and material B again, continue to stir 1-2h with the speed of 1000-1200 rev/min, gained material crosses 400 mesh sieves after being cooled to room temperature, and filtrate vanning gets product.

The beneficial effect of protecting glue of the present invention is: be first have good levelling property, and the organobentonite in raw material can improve thixotropy and the thermostability of colloidal sol, can form continuous, the uniform protective film of thickness after impelling glue-coating; Secondly, Nano diamond powder is dispersed in glue after pretreatment, and it has high thermal conductivity and low frictional coefficient, can accelerate the drying of glue, reduces the wearing and tearing of the space of a whole page, prevents from scratching, and does not affect printing effect, and the resistance to print of CTP version obtains and improves; Finally, protecting glue asepsis environment-protecting of the present invention, preparation is convenient, and anti-electrostatic is dust-proof, not easily set-off, and be easy to cleaning, printing effect is good.

Embodiment

The protecting glue of the present embodiment is made up of the raw material of following weight part: gum arabic 3, peach gum 2, polyvinyl alcohol 2, cm-chitosan 1, organobentonite 0.3, propylene glycol 15, deionized water 55, Nano diamond 0.01, tween 80 0.2, auxiliary agent 1.

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 20-30 weight part, be heated to 40-50 DEG C, drop into gum arabic, peach gum, stir 12h with the rotating speed of 500 revs/min, obtain material A for subsequent use;

(2) by organobentonite, Nano diamond and tween 80, mixed with propylene glycol grinding distribution 30min, B is obtained for subsequent use;

(3) remaining deionized water is added in reaction vessel, be heated to 50-60 DEG C, add other leftover materials, first with the speed mix and blend 2h of 500 revs/min, add material A and material B again, continue to stir 2h with the speed of 1000 revs/min, gained material crosses 400 mesh sieves after being cooled to room temperature, and filtrate vanning gets product.

Rag clean during use or sponge draw this product after dilution, and consumption is about 1m ³/ 45mL, alternately expires version even spread in length and breadth, and coating terminates rear drying.

Claims

1. wear-resistant long-acting 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: gum arabic 2-3, peach gum 1-3, polyvinyl alcohol 2-4, cm-chitosan 1-2, organobentonite 0.2-0.5, propylene glycol 10-15, deionized water 50-60, Nano diamond 0.01-0.02, tween 80 0.1-0.2, auxiliary agent 1-2;

2. a kind of wear-resistant long-acting CTP version protecting glue as claimed in claim 1 and preparation method thereof, its preparation method is: