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Preparation method of alcohol water-based ink resin for pvc heat shrinkable film

A technology of ink resin and heat-shrinkable film, which is applied in the field of alcohol water-based ink resin and its preparation, can solve the problems of high glass transition temperature, strong odor of ester solvents, heavy odor and peculiar smell, etc., and achieve good printing effect, The preparation method is simple and the effect of strong adhesion

Active Publication Date: 2018-05-08
CHENGDU XINJIN TUOZHAN PRINTING INK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the solubility of polyvinyl chloride and vinyl resin determines that the prepared ink must be mainly formulated with ketones (such as cyclohexanone, methylcyclohexanone, methyl isobutyl ketone, etc.) and ester solvents. Ink, and because the glass transition temperature of the above two types of resins is high and the hardness is high, it is usually necessary to add plasticizers such as dibutyl phthalate in actual use
As we all know, ketones (such as cyclohexanone, methylcyclohexanone, methyl isobutyl ketone, etc.) and ester solvents have a strong odor, heavy odor and peculiar smell, and poor environmental protection, while dibutyl phthalate Plasticizers such as plasticizers are more harmful to the human body

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add 2.5 g of azobisisobutyronitrile, 120 g of ethyl acetate and 130 g of absolute ethanol into the reaction kettle, stir evenly, then heat up to 75°C; Vinyl vinyl acetate (weight average molecular weight 10,000, vinyl acetate segment content 12 wt%, hydroxyl content 1.0 wt%), 75g of butyl acrylate, 50g of vinyl acetate, 25g of hydroxyethyl acrylate were evenly mixed ) and initiator solution (formed by uniformly mixing 2.5g of azobisisobutyronitrile and 150g of ethyl acetate); the dropping time of the monomer mixture and the initiator solution is 3 hours, and the temperature is maintained during the dropping 75°C; after the dropwise addition, keep the temperature at 75°C, continue to stir for 4 hours, then lower the temperature, and add 100g of absolute ethanol to dilute at the same time; after cooling down to room temperature, pack it to obtain a PVC heat shrinkable product with a solid content of 50wt%. Alcoholic water-based ink resin for film.

Embodiment 2

[0033] Add 2.0 g of benzoyl peroxide, 100 g of ethyl acetate and 60 g of absolute ethanol into the reactor, stir evenly, then heat up to 80°C; Vinegar resin (weight average molecular weight 10,000, vinyl acetate segment content 12 wt%, hydroxyl content 1.0 wt%), 50g of ethyl acrylate, 60g of vinyl acetate, 30g of acrylamide uniformly mixed) and Initiator solution (formed by uniformly mixing 2.0g of benzoyl peroxide and 64g of benzoyl peroxide); the dropping time of the monomer mixture and the initiator solution is 4 hours, and the temperature is maintained at 80°C during the dropping After the dropwise addition, keep the temperature at 80°C, continue to stir for 4 hours, then cool down, and add 64g of absolute ethanol to dilute; Water-based ink resin.

Embodiment 3

[0035] Add 1.2 g of azobisisobutyronitrile, 200 g of ethyl acetate and 100 g of absolute ethanol into the reactor, stir evenly, then heat up to 80°C; Vinyl acetate resin (weight average molecular weight 20,000, vinyl acetate segment content 16 wt%, hydroxyl content 2.0 wt%), 80g butyl acrylate, 60g vinyl acetate, 40g acrylic acid are evenly mixed ) and initiator solution (by uniformly mixing 1.2g of azobisisobutyronitrile and 180g of ethyl acetate); the dropping time of the monomer mixture and the initiator solution is 5 hours, and the temperature is maintained at 80 during the dropping ℃; after the dropwise addition, keep the temperature at 80°C, continue to stir for 3 hours, then lower the temperature, and add 120g of absolute ethanol to dilute at the same time; after cooling down to room temperature, pack it to obtain a PVC heat-shrinkable film with a solid content of 40wt%. Alcoholic water-based ink resin.

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Abstract

The invention relates to a resin for printing ink of PVC heat-shrinkable film, in particular to an alcoholic water-based ink resin and a preparation method thereof. The invention is a preparation method of alcoholic water-based ink resin for PVC heat-shrinkable film, which uses hydroxychloride resin, (meth)acrylate, vinyl acetate and active functional monomers as raw materials, and is grafted and copolymerized by solution free radicals. And get. Since the hydroxychloride resin has a similar chemical structure to the PVC heat shrinkable film, the prepared graft copolymer has good adhesion to the PVC heat shrinkable film, and the heat shrinkage rate is well matched; Monomers provide alcohol water solubility for the graft copolymers. The preparation method of the alcoholic water-based ink resin for PVC heat-shrinkable film of the invention is simple, the prepared ink has good printing effect, strong adhesion, good heat shrinkage rate matching degree, and is water-soluble in alcohol, economical and environmentally friendly, and can be used in PVC heat-shrinkable film. The field of printing ink has broad application prospects.

Description

technical field [0001] The invention relates to a resin for PVC heat-shrinkable film printing ink, especially an alcohol water-based ink resin and a preparation method thereof. technical background [0002] As a type of secondary packaging material, PVC shrink film sleeves have been widely used and will be increasingly used in the beverage packaging industry. The label made of PVC heat shrinkable film is printed with rich text and patterns, and shrinks around the container, forming a beautiful landscape among the dazzling array of products. The so-called heat-shrinkable film is a plastic film that is designed by the principle of polymer molecular chain stretching and orientation, and is shaped by rapid cooling. The PVC heat shrinkable film made by blown film or casting process, when heated to a certain temperature, its transverse shrinkage rate can reach 50-60%, while the longitudinal shrinkage is very small, which can well meet the needs of existing containers. Packaging ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F259/04C08F2/06C09D11/106
Inventor 付勇金勇
Owner CHENGDU XINJIN TUOZHAN PRINTING INK
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