Composition of Wuhan Modern Composite Film Printing Ink
DATE：2020/3/28 9:06:15 / READ： / SOURCE：This station
Composition of Wuhan Modern Composite Film Printing Ink
Composite film ink is composed of resin, solvent, pigment and auxiliary as well as general ink. Resins and solvents are affecting the ink
The main factor in performance.
1) The resins for inks are mainly poly resins and vinyl copolymer resins. These resins have good desolvation properties and have strong adhesion to the films used. The pigment has good dispersibility, is odorless, tasteless and non-toxic, and is suitable for making inks. www.handern.com Composite membrane equipment
2) The role of the solvent is also very important. The drying of the ink mainly depends on the evaporation of the solvent. The speed of solvent evaporation directly affects the speed of printing (4 brushes. Therefore, when selecting a solvent, its volatility, the ability to dissolve the resin, and the amount of solvent residues, etc. should be considered. Generally, benzenes, ketones, esters, and alcohols are generally used. And other solvents. To be mixed in a certain proportion.
3) The pigment should consider the stability to the solvent, non-toxic and good dispersibility. www.handern.com Composite membrane equipment
4) The auxiliary should consider whether it can improve the performance of the ink, such as stability, antistatic properties, dispersibility to pigments and antiblocking properties. The domestic oil crystals were compounded by the Indian Vice. , Its composite strength in the presence of A heart agent is not low INm hygienic performance can also meet the requirements of packaged food, can be used in the introduction of flexible packaging composite film printing production line. www.handern.com Composite membrane equipment
2.Types of composite ink) www.handern.com Composite film equipment
Composite inks include back printing inks and surface printing inks. Surface printing ink, generally used in non-transparent films. The surface printing ink and printing surface are directly exposed on the outside of the printed matter, so it is particularly required:
① Strong abrasion resistance and scratch resistance;
② High temperature heat resistance of heat-resistant sealing paper;
③ Appearance is required for gloss, vividness and decoration
Inner printing ink is generally used for composite film printing whose surface layer is transparent film. Since the ink is sandwiched between the printing film and the other layer of composite film, only the special durability with composite adaptability is required, while the surface printing requires
The durability of ① and ③ is almost unnecessary, which is the difference between the two. Types of composite inks Composite inks can be divided into three categories based on their resin types:
(1) Chlorinated polypropylene and chlorinated EVA-based composite inks. These composite inks are mainly used for compounding with a tackifier (AC agent) and then extruding polyethylene, compounding of polypropylene, and adhesives. Dry lamination or hot-melt lamination using hot-melt adhesives.
This type of composite ink can be divided into the following categories: www.handern.com
1) Chlorinated PPs.
2) Chlorinated EVA. All round
3) Chlorinated PP + chlorinated EVA. class
For type 1), the composite film can be produced by extruding PP compound without tackifier coating and extruded PE compound using tackifier coating, or dry compounding with adhesive, and its bond strength can meet the requirements. The disadvantage is that the printing effect is worse than that of 2) and 3), and the residual solvent is longer and has an odor. www.handern.com Composite membrane equipment
For type 2), the above-mentioned composite bonding strength is worse than 1), and the ink performance (referring to color development, printing effect, solvent release) is better than type A. Second throbbing. Jiabei couple pair 3), compound performance and printing performance are better than 1) and 2). For the above chlorinated P2, the degree of chlorination is 1% 45% (mass fraction), and the content of chlorinated EVA and VA is 5%.
Composite film ink is composed of resin, solvent, pigment and auxiliary as well as general ink. Resins and solvents are affecting the ink
The main factor in performance.
1) The resins for inks are mainly poly resins and vinyl copolymer resins. These resins have good desolvation properties and have strong adhesion to the films used. The pigment has good dispersibility, is odorless, tasteless and non-toxic, and is suitable for making inks. www.handern.com Composite membrane equipment
2) The role of the solvent is also very important. The drying of the ink mainly depends on the evaporation of the solvent. The speed of solvent evaporation directly affects the speed of printing (4 brushes. Therefore, when selecting a solvent, its volatility, the ability to dissolve the resin, and the amount of solvent residues, etc. should be considered. Generally, benzenes, ketones, esters, and alcohols are generally used. And other solvents. To be mixed in a certain proportion.
3) The pigment should consider the stability to the solvent, non-toxic and good dispersibility. www.handern.com Composite membrane equipment
4) The auxiliary should consider whether it can improve the performance of the ink, such as stability, antistatic properties, dispersibility to pigments and antiblocking properties. The domestic oil crystals were compounded by the Indian Vice. , Its composite strength in the presence of A heart agent is not low INm hygienic performance can also meet the requirements of packaged food, can be used in the introduction of flexible packaging composite film printing production line. www.handern.com Composite membrane equipment
2.Types of composite ink) www.handern.com Composite film equipment
Composite inks include back printing inks and surface printing inks. Surface printing ink, generally used in non-transparent films. The surface printing ink and printing surface are directly exposed on the outside of the printed matter, so it is particularly required:
① Strong abrasion resistance and scratch resistance;
② High temperature heat resistance of heat-resistant sealing paper;
③ Appearance is required for gloss, vividness and decoration
Inner printing ink is generally used for composite film printing whose surface layer is transparent film. Since the ink is sandwiched between the printing film and the other layer of composite film, only the special durability with composite adaptability is required, while the surface printing requires
The durability of ① and ③ is almost unnecessary, which is the difference between the two. Types of composite inks Composite inks can be divided into three categories based on their resin types:
(1) Chlorinated polypropylene and chlorinated EVA-based composite inks. These composite inks are mainly used for compounding with a tackifier (AC agent) and then extruding polyethylene, compounding of polypropylene, and adhesives. Dry lamination or hot-melt lamination using hot-melt adhesives.
This type of composite ink can be divided into the following categories: www.handern.com
1) Chlorinated PPs.
2) Chlorinated EVA. All round
3) Chlorinated PP + chlorinated EVA. class
For type 1), the composite film can be produced by extruding PP compound without tackifier coating and extruded PE compound using tackifier coating, or dry compounding with adhesive, and its bond strength can meet the requirements. The disadvantage is that the printing effect is worse than that of 2) and 3), and the residual solvent is longer and has an odor. www.handern.com Composite membrane equipment
For type 2), the above-mentioned composite bonding strength is worse than 1), and the ink performance (referring to color development, printing effect, solvent release) is better than type A. Second throbbing. Jiabei couple pair 3), compound performance and printing performance are better than 1) and 2). For the above chlorinated P2, the degree of chlorination is 1% 45% (mass fraction), and the content of chlorinated EVA and VA is 5%.
Author：admin