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Environment-friendly printing ink for POF shrink film printing

A heat-shrinkable film, environmentally friendly technology, applied in the field of ink, can solve the problems of easy scalding, poor adhesion, poor abrasion resistance, poor scratch resistance, etc., and achieve the effect of high transparency, excellent cold resistance, and high shrinkage rate

Inactive Publication Date: 2015-10-21
DONGCHANG IND LINHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] POF shrink film gravure ink: It is a special ink for printing POF film by gravure high-speed printing. Now the POF ink manufacturers on the market have poor adhesion, easy to burn at high temperature, poor wear resistance and scratch resistance, etc. question

Method used

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  • Environment-friendly printing ink for POF shrink film printing
  • Environment-friendly printing ink for POF shrink film printing

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1: Adhesion test: scrape the ink on the POF film, and test the adhesion with the 100-grid method. The adhesion indicates that the higher the percentage, the better the adhesion.

[0028] The test method follows GB / T13217.7-2009, the test conditions are consistent, and the adhesion fastness is tested. The results of the adhesion fastness are as follows:

[0029] Product 1: 99.50%, contrast A white: 90.5%, contrast B white: 90%;

[0030] Product 2: 99.50%, compared with A blue: 88%, compared with B blue: 89%;

[0031] Product 3: 99.50%, contrast A yellow: 91%, contrast B yellow: 91.5%;

[0032] Product 4: 99%, compared with A red: 93.0%, compared with B red 91.0%;

[0033] Product five: 96%, contrast A black: 85%, contrast B black: 84%.

Embodiment 2

[0034] Embodiment 2: abrasion resistance test

[0035] Place the scraped sample on the SN-5750 linear ink consumption testing machine for testing, the weight is 2 weights of 500g, and the test head is counted back and forth once to observe the wear resistance. Wear resistance means: 1. Severe wear; 2. Obvious wear; 3. Slight wear; 4. Very slight wear; 5 No wear. The test results are shown in Table 1.

[0036] Table 1: Abrasion Resistance Test Results

[0037]

Embodiment 3

[0038] Embodiment 3: anti-adhesion test

[0039] After folding the scraped sample in half, align and clamp the scraped sample with two 6cm*6cm glass plates, place it in an oven, add a 3kg weight to the upper glass plate, and bake at 45-65°C for 1 hour. Take out the sample, cool it down to room temperature naturally, start scraping the sample, and observe the adhesion phenomenon. Adhesion means: 1. Severe adhesion; 2. Obvious adhesion; 3. Slight adhesion; 4. Very slight adhesion; 5 No adhesion. The test results are shown in Table 2.

[0040] Table 2 Anti-adhesion test results

[0041]

[0042] Use Cases

[0043] Pre-prepared diluent: ethyl acetate: n-propyl ester = 7:3

[0044] Re-deploy ink: ink main body: diluent = 10:10, just after printing.

[0045] After printing with POF shrink film gravure ink, the finished product has high gloss. When used with POF varnish, the gloss meter test can reach 70-80 degrees, achieving a high gloss effect and improving the aesthetics o...

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Abstract

The invention discloses environment-friendly printing ink for POF shrink film printing. The printing ink is composed of a printing ink main body and diluent. The printing ink is characterized in that the weight ratio of the printing ink main body to the diluent is 1:1; the printing ink main body is prepared from the following components in percentage by weight: 25-35% of EVA resin solution, 10-20% of ethyl acetate, 10-30% of n-propyl acetate, 8-37% of pigments, 1-3% of polyethylene wax, 1-5% of dispersant, 10-20% of modified material and 1-3% of rosin resin. The POF shrinking film gravure printing ink prepared by the formula realizes industrial production of the POF shrinking films. The POF shrinking film is a safe and reliable soft shrinking film which is high in transparency, high in shrinking percentage, high in toughness, high in hot-sealing performance, and excellent in static resistance and cold resistance, so that the production and operation environments are greatly improved and the POF shrinking film is environment-friendly and sanitary.

Description

technical field [0001] The invention belongs to the technical field of inks, and in particular relates to an environment-friendly ink used for printing POF heat shrinkable films. Background technique [0002] POF means heat-shrinkable film. POF stands for multi-layer co-extruded polyolefin heat-shrinkable film. It uses linear low-density polyethylene as the middle layer LLDPE, and copolymerized polypropylene pp as the inner and outer layers. It is plasticized by three extruders. It is extruded, and then processed by special processes such as die forming and film bubble inflation. [0003] POF heat-shrinkable packaging film has a wide range of uses, a broad market, and has the advantages of environmental protection and non-toxicity. Therefore, it has been widely valued by developed countries in the world, and has basically replaced PVC heat-shrinkable packaging film as the mainstream product in heat-shrinkable packaging materials. With my country's accession to the WTO and i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/106C09D11/12C09D11/08C09D11/03
CPCC09D11/106C09D11/03C09D11/08C09D11/12
Inventor 朱贤伟聂荣曹亮亮林颖科潘世法
Owner DONGCHANG IND LINHAI CO LTD
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