• What is the difference between flexo printing and gravure printing
    What is the difference between flexo printing and gravure printing

    2024-04-03

    The main difference is that the nature is different, the production process is different, and the characteristics are different, as follows: First, the nature is different 1.Flexo printing Flexo printing is a direct printing method known as flexo printing because of the use of elastic, raised image plates. 2.Gravure printing Gravure refers to gravure printing, first the printing plate on the excess ink scraping, and then through the impression roller to the printing plate between the printed matter, to apply appropriate pressure, the ink from the concave to the printed matter on a printing method. Second, different production processes 1.Flexo printing From the perspective of original design and platemaking process, flexographic printing process has its own system and its own unique features, and its platemaking process is basically as follows: Original manuscript → electronic color separation or photography → positive negative image → back exposure → main exposure → development rinse → drying → post-processing → post-exposure → pasting. 2.Gravure printing Gravure printing due to the high degree of automation of the printing machine, plate making quality is good, so the process operation is simpler than lithography, easy to master, the process flow is as follows: Pre-press preparation → on the plate → Adjust the rules → official printing → post-press processing. Three, different characteristics 1.Flexo printing (1)the equipment structure is relatively simple, so the operation is also relatively simple and convenient. (2) Flexographic printing is made of drum material, which can not only realize the double-sided printing of the substrate material, but also complete the work of wire glazing (or laminating), stamping, die-cutting, waste discharge, winding, etc. The production cycle is greatly shortened, manpower, material and financial resources are saved, and production costs are reduced. (3)the range of substrate materials is relatively wide, such as paper, plastic film, aluminum foil, self-adhesive paper and so on. (4)the print quality is good, the printing accuracy can reach 150 lines/inch, and the print layer is rich, the color is bright, the visual effect is good, especially suitable for the requirements of packaging printing. 2. Gravure printing (1) The ink-bearing part of the gravure plate is concave, so it can undertake a large amount of ink, such as the electrostatic ink absorption device used with the gravure press, it can obtain a solid ink layer, bright colors and rich levels. (2)the relative cost is low because the entire page of the gravure printing plate is protected by a hard metal chromium layer, so even when the scraper is in contact with the page, it still maintains a high printing resistance, generally up to several million prints. (3)Offset printing is to wrap the produced plate on the plate cylinder, so there is always an area on the surface of the plate roller for fixing the plate. Gravure plate is different, because the grav...

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  • A few key points you must know about ink defoamer
    A few key points you must know about ink defoamer

    2024-04-02

    As an important material for printing, ink is composed of resin, pigment, filler and auxiliary. Due to many industries such as books, packaging, construction, and circuit boards, with the gradual increase in social demand, the use of ink is also increasing. However, in the production and use of ink, due to the addition of surfactants, equipment stirring operation and environmental changes will cause ink foam problems, these foams will not only reduce the efficiency of ink production, but also affect the performance and quality of ink, which has become a problem for many ink manufacturers. What causes the ink to blister? 1.High hardness tap water is added in the production and use of ink, so that the surface tension of the ink solvent is different; 2.The viscosity of the ink is large, the air is difficult to escape, and the foam will be formed inside; 3.In order to improve the performance of the ink will add chemical additives, these additives contain surfactants, it is easy to lead to ink foaming; 4.In the production and use of ink due to the stirring operation of the equipment, resulting in the involvement of a large amount of air, resulting in foam What harm will there be if the foam of the ink is not eliminated in time? 1.Foaming will affect ink printing, resulting in defects such as white spots during printing, affecting the aesthetics of printing; 2.Foam can also lead to poor ink fluidity, resulting in uneven ink printing surface, reduce the gloss of the ink; 3.Lead to the pigment and filler can not be fused, so that the sizing is not uniform; 4.A large number of foams will also slow down the production progress of ink, resulting in the extension of the production cycle and increasing the production cost of ink. Therefore, in order to improve the quality of ink, reduce the defects of ink foaming, restore the normal ink production schedule, and avoid unnecessary costs, the use of ink defoamer is a good choice. The defoamer has fast defoaming speed and long defoaming time. In the high temperature, strong acid, strong alkali environment can also play its stable anti-foam and anti-foam performance; Adding to the ink will not affect the basic system of the ink, will not affect the performance of the ink, will not change the appearance and color of the ink; Good water solubility, good dispersion, can quickly penetrate the inside of the ink, no oil, no precipitation. Company operating products: waterborne ink resin and defoamer agent, Various auxiliaries and so on!

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  • Water-based matte resin matte aliphatic aqueous polyurethane dispersion
    Water-based matte resin matte aliphatic aqueous polyurethane dispersion

    2024-03-30

    Aqueous matte resin matte aliphatic aqueous polyurethane dispersion is a high performance solvent-free anionic aliphatic matte aqueous polyurethane, dull, soft to touch, with excellent hydrolysis resistance, heat resistance and bending resistance. Product performance Appearance  Milky liquid Application With excellent flexibility and adhesion, it can be used alone or mixed with other emulsions to improve low temperature bending resistance. It can be used for water-based matte finish paint, leather, textile and paper polish. The product is free of matte powder and wax powder, and has excellent scratch resistance, water resistance, solvent resistance and soft touch. Adding crosslinking agent or curing agent can improve its physical properties Storage The product must be stored at 5°C -35°C, avoid freezing, storage period of more than 6 months. Welcome to Anhui Zhongen Chemical Co., LTD., contact person is Vivi. Contact number is +86 0551 63459511 Contact mobile phone is +8615755193346 Anhui Zhongen Chemical Co., Ltd. is a professional agent and operating all kinds of water-based paint and water-based ink raw materials, water-based paint raw materials and plastic additives company, the company has experienced water-based paint and water-based engineers, The company is dedicated to provide you with quality products, quality service and good solutions. The main business of the company: all kinds of curing agent, acrylic resin, polyurethane resin and all kinds of surfactants, thickeners. The company's product quality to obtain customer recognition and trust. Company operating products: waterborne polyurethane resin and acrylic resin, nano super hydrophobic and so on!

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  • Factory direct sale  Water-based strippable polyurethane resin
    Factory direct sale Water-based strippable polyurethane resin

    2024-03-28

    Protective film resin  Automobile coating resin  High resilience waterborne polyurethane resin 1.Typical properties Appearance: Milky white liquid Protective film resin  Automobile coating resin Ph: 7.0-9.0 Automobile coating resin Solid content: 40±1% Charge: Anionic High resilience waterborne polyurethane resin Viscosity (25℃): 300-800cP Elongation (%): >200 Tensile strength (MPa): >2.2 Dry time for Touch (25℃):: 1-2 hours Dry time for Test (25℃): 24 hours 2.Product characteristics factory direct sale  Water-based strippable polyurethane resin This product is an anionic aliphatic aqueous polyurethane dispersion, with yellowing resistance, low temperature bending, fast thickening, high film luster, elasticity, good stripping, recoating and scratch resistance, easy to peel on a variety of substrate surfaces 3.Application Suitable for thermal transfer inks, strippable protective coatings, such as fabrics, aluminum, stainless steel, glass, plastics, plastic steel, etc. There are also many applications in the automotive industry. 4.Storage and shelf life: The storage period is 6 months, and the storage temperature is 0 ~ 40℃. The storage environment should not be lower than 0℃, otherwise it will freeze; The temperature above 40 ° C will condense and cannot be recovered. This product should be placed in a ventilated, dark place. Avoid heat or direct sunlight. It should be sealed and stored to avoid volatilization of water and conjunctiva. Note: As the construction is beyond the control of the company, the company's technical indicators and suggestions of business personnel are out of good faith! The company is only responsible for the quality of products. The company does not assume any economic and legal responsibility for the effects produced during use. If you need Water-based peelable polyurethane resin samples, please leave a message and the relevant staff will contact you as soon as possible or call the official hotline: +86 0551 63459511

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