Vinyl Resin is mainly used for application printing inks or coating. Hereby we would like to introduce the production method for your reference as follows; The production method of the Vinyl Resin is similar to the polyvinyl chloride homopolymer resin, and the selected initiator and dispersant system are basically the same, except that a monomer such as vinyl acetate is added. However, there are the following differences in production operations: 1. In the production process of Chemical Resistance Vinyl Resin, the reactivity ratio earlier than vinyl chloride is larger than that of vinyl acetate. In order to obtain copolymers of chloroacetic acid, the chloroacetic resin obtained by adding vinyl chloride in multiple steps is more than one feeding method. The resin obtained is much better. Because the content of vinyl acetate in the different polymerization stages of the former is more uniform than the latter. Colleagues have a higher price of vinyl acetate than vinyl chloride. The use of batchwise vinyl chloride helps reduce the amount of vinyl acetate, which can reduce the cost of resin production. 2. The particle characteristics of Vinyl Resin directly affect the quality of the product, especially ink production. Poor particle properties can lead to insoluble problems in the production process, and there is a thickening phenomenon when the product is placed for a certain period of time, which affects the performance. Therefore, a suitable dispersant is used to improve the solubility of the chloroacetate resin and improve the chloroacetate resin. Porosity and control of the particle size of the copolymer resin. 3. To control the molecular weight, vinyl acetate content and molecular weight distribution of the chloroacetic copolymer resin to improve the processing denaturation of the copolymer resin. Firstly, the polymerization temperature is controlled, and the polymerization temperature is kept stable. The ratio of vinyl acetate and vinyl chloride to be added is controlled, and the ratio in the polymerization process is relatively constant as much as possible to obtain a product having a uniform copolymerized resin containing vinyl acetate. Secondly, it is necessary to control the chain transfer between the active chain end and the monomer. For the copolymerization system, compared with the presence of vinyl acetate, the polymer has a high chain transfer coefficient from the end to the monomer, thereby lowering the molecular weight of the resin. And there is an increase in the impact of vinyl acetate. In addition, there is an increase in the influence of vinyl acetate. If your need more informations about vinyl resin, pls let us know.

Is the merchandise printed with UV ink not shiny and bright enough? A million bad exercises, mild curing isn't thorough, the appearance of sticky? Don't worry, these questions are clearly stated at one time now, so you can use them after reading them! A. The gloss is not good and the brightness is not enough. The key reasons are as follows:  (1) the viscosity of UV ink is too little and the coating is too thin;  (2) excessive dilution of non-reactive solvents such as ethanol; (3) irregular coating of UV ink;  (4) powerful absorption of paper;  (5) too thin display roller, absence of petroleum provide nourishment method: In accordance with the different states of paper, the viscosity and coating amount of UV ink ought to be suitably enhanced. A coating of base oil can be coated on paper using strong absorption. B. Poor performance, pristine light curing and tacky Look The key reasons are:  (1) insufficient ultraviolet light intensity;  (2) aging and weakening of ultraviolet lamp tube;  (3) long storage time of ultraviolet ink;  (4) excessive involvement of diluents which don't participate in the reaction;  (5) excessive speed of this machine. C. There are white spots and pinholes in the published matter. Can also participate in a small quantity of smoothing aids. The busy diluent that engages in the response is the ideal choice for dilution.

Our company mainly has Polyamide Resin Co-solvent, Polyamide Resin Alcohol Soluble and so on. Polyamide Resin Co-solvent Common co-soluble polyamide resin is a kind of economical and practical resin, which is developed accommodating to the market requirement. It has good stability, good solvent release,marvelous glossiness, strong adhesive power, fine gel resistance. In indoor temperature, it can turn-fost, widely be used to printing fields. Polyamide Resin Alcohol Soluble The alcohol-soluble Polyamide resin, is easily dissolved in alcohol. It can be dissolved in 95% dehydrated alcohol, dissolves aids the release is extremely good .It widely used in the domain such as gravure printing ink of plastic film, the flexo printing ink of plastic film domain. Features: •Excellent solvent release •Excellent gloss •Excellent gel resistance •Excellent pigment wetting •Excellent water resistance •Excellent blocking resistance •Good grease & chemical resistance •Low odour and color Application: Gravure printing ink. Flexo printing ink. Over-printing varnish

In today's packaging and other printed materials, in addition to the use of bronzing process, offset printing gold printing process is still used by many manufacturers. Ink has the advantages of fine and solid imprint, good metal texture, strong hiding power, high floating force, strong metallic luster and low cost. Offset printing enterprises can directly choose gold color offset ink products or use copper gold powder and offset gold oil to self-adjust salty gold ink printing. First, the basic composition of offset gold ink: Bronze powder 30～50% Gold color Offset printing  oil 70～50% mix the bronze powder with gold Oil homogeneously can become gold ink. Second, the cause of the discoloration of the printing gold and preventive measures: 1. Fountain solution pH value and ink balance. In offset printing based on the principle of hydrophobic part of printing plate and hydrophilic principle of non graphic part, the acid substance in the fountain solution can cleaning and remove the dirt. However, if the acid is too strong, the gold printing  will be changed color and lose its metallic luster, resulting in printing plate pattern, slow drying of imprint and sticking on the back. If the acidity is too weak, the picture and text on the printing plate will be dirty and paste. Therefore, the general fountain solution pH value control in 5 ~ 6 is appropriate. Water ink balance is to use as little water as possible on the premise that the printing plate is not dirty and paste, so that the emulsification of the ink is controlled within the minimum range of 25%. Because the water is too much, it is easy to cause the printing gold ink color is too light, the gold ink is dull, the color is not bright, the gold ink is emulsified, the paper stretch deformation causes the overprint inaccuracy and other quality defects; too little of water, easy to make the page dirty, greasy and the emergence of parallel paste, so it is very important to master the balance of ink and water. In addition, the intermediate roller must be separated from the ink path and waterway system, which is also an essential method to avoid. 2. Printing speed. If the printing speed is too fast, it is easy to produce intense rubbing between the rollers, and then the heat generated will change the color of the ink. The general experience is that it should be controlled at 5000 sheets per hour. 3. Oxidation of bronze powder. Bronze powder has the disadvantage of easy oxidation and discoloration, so the bronze powder must be kept in closed air as far as possible, and the storage time should not be too long. 4. PH value of gold blending oil. Bronze powder is easy to oxidize, so the gold adjusting oil used must be fast drying and fast solidifying resin oil with low oxidation property and neutral pH value. In order to avoid oxidation due to long-term storage, it is better to use the self-adjusti...