- Coating
- Plastics
- Color Printing
- Masterbatch
- Stationery
Paint, in Chinese traditional name paint. The so-called coating is coated on the surface of the object to be protected or decorated, and can form a continuous film firmly attached to the coated object. The more authoritative "Paint process" book in the Chinese coating industry is defined as follows: paint is a material that can be coated on the surface of the object with different construction processes to form a solid film with strong adhesion, certain strength and continuity. The film formed in this way is generally called coating film, also known as paint film or coating. Coatings generally consist of four basic components: film forming substances (resins), pigments (including physical pigments), solvents and additives. The role of paint has four main points: protection, decoration, cover up the defects of the product and other special roles to enhance the value of the product.
Types of coatings are:
1) According to the form of the paint is divided into water-based paint, solvent paint, powder paint, high solid paint and so on
2) According to the construction method, it is divided into brush coating, spray coating, roll coating, dip coating, electrophoretic coating, etc
3) According to the construction process, it is divided into primer, medium paint (two primers), top paint, finish paint, etc
4) According to the function, it is divided into decorative coatings, anti-corrosion coatings, conductive coatings, anti-rust coatings, high temperature resistant coatings, temperature indicating coatings, thermal insulation coatings, fireproof coatings, waterproof coatings, etc.
5) According to the use of architectural paint, can paint, automotive paint, aircraft paint, home appliance paint, wood paint, bridge paint, plastic paint, paper paint and so on.
6) Household paint is divided into interior wall paint, exterior wall paint, wood paint, metal paint, floor paint
* Organic pigments used for paint are: interior wall paint, wood paint, floor paint, decorative paper, car paint, etc., and canned food such as eight-treasure porridge and cola
Plastic is a monomer as a raw material, through the addition of polycondensation or polycondensation reaction polymerization of polymer compounds, its deformation resistance is medium, between fiber and rubber, by synthetic resin and filler, plasticizer, stabilizer, lubricant, color additive composition. The colors used in plastic coloring are generally inorganic pigments, organic pigments and solvent dyes. There are many varieties of organic pigments, bright colors, high coloring power, and other pigments can not replace the advantages, and the importance of plastic coloring is obvious. In addition to the direct coloring of powdered pigments, the pigments can also be made into masterbatches, preforms, etc., and then colored.
Commonly used coloring plastics are as follows:
PE-polyethylene
LDPE- Low density polyethylene
LLDPE- Linear low density polyethylene
HDPE- High density polyethylene
PP-polypropylene
PVC- polyvinyl chloride
PS- Polystyrene
PC- polycarbonate
PA66-nylon
PET- polyethylene terephthalate
PBT- polybutyl terephthalate
PMMA- polymethacrylate
Eva-ethylene-vinyl acetate copolymer
POM- polyformaldehyde ester
PU- polyurethane
Abs-acrylonitrile-butadiene-styrene copolymer
Color paste is a pigment dispersion paste, it uses different pigments, and the surface of the pigment through treatment, surface wrapping and other technologies, after a rigorous processing technology developed, the pigment in the color paste is in the form of particles in the dispersion medium, added to the paint in addition to giving paint color, but also provide a certain hiding power.
* According to the solvent used in the color paste, the color paste is divided into water-based color paste, oily color paste, water-oil universal color paste, etc.; According to the different use of color paste is divided into paint color paste, tape color paste, paper color paste, textile color paste, mechanical color paste, toy color paste, latex products color paste and so on.
The full name of the color masterbatch is color masterbatch, also known as color, is a new type of polymer material special coloring agent, also known as pigment preparation. Masterbatches are mainly used in plastics. The color master is composed of three basic elements: pigment or dye, carrier and additive. It is the aggregate of super constant pigment uniformly attached to resin, which can be called pigment concentrate, so its coloring power is higher than the pigment itself. During processing, a small amount of color masterbatch is mixed with uncolored resin to achieve the coloring resin or product with the design pigment concentration.
Advantages of masterbatch:
1) Make the pigment have better dispersion in the product, the pigment must be refined during the production process to improve the dispersion and coloring power of the pigment. The carrier of the special color masterbatch is the same as the plastic variety of the product, and has good matching, and the pigment particles can be well dispersed in the product plastic after heating and melting
2) It is beneficial to maintain the chemical stability of the pigment. If the pigment is used directly, due to the direct contact of the pigment with the air during storage and use, the pigment will absorb water, oxidation and other phenomena, and after the color is made, the resin carrier will isolate the pigment from the air and water, which can make the quality of the pigment unchanged for a long time
3) Ensure that the stable color master particles of the product color are similar to the resin particles, which is more convenient and accurate in measurement, and will not adhere to the container when mixing, and the mixing of the resin is also more uniform, so that the stability of the added amount can be ensured, thus ensuring the stability of the product color
4) The healthy pigment to protect the operator is generally powdered, which is easy to fly when added and mixed, and will affect the health of the operator after being inhaled by the human body
5) Keep the environment clean
6) Easy to use
Refers to stationery supplies, sports supplies and other related supplies, such as teaching commonly used for the opening ceremony supplies, pens, paper, projectors, whiteboards, binding machines, easels, desks and chairs. Nowadays, the understanding of cultural and educational supplies is more for teaching supplies, mainly used in school institutions.
* Organic pigments used in cultural and educational supplies are: books (textbooks), reference books (word dictionaries, etc.), plastic ruler, plastic floor, plastic track, crayons, chalk, pencils, ballpoint pens, pen boxes, nail machines, decorative paper, etc.
Wanlong Chemical Co., LTD