The pigment must be dispersed in some carriers before it can be used. Therefore, for pigment users, the pigment dispersion technology is very important. The market is very eager for pigments that are easily dispersed, ie, easily dispersible pigments. From the user's point of view, it is desirable to microdisperse the pigment in the specified carrier at a high concentration. This also means that there is a pre-dispersed pigment, that is to say, a pigment color tablet or a dry film. According to the specific product requirements, pigment color tablets generally require the use of organic pigments in solvent-based inks and automotive paints, and organic pigments or inorganic pigments in nitro spray paints and coatings.
Organic pigments are colored organic substances. Compared with inorganic pigments, organic pigments with a wide range of chromatograms have more vivid colors, brighter colors, and higher coloring power. It is gradually developed along with the technological progress of organic dyes. In contrast to dyes, organic pigments are insoluble in water and do not dissolve in the carrier. They color the substance to be colored in a state of highly dispersed particles. In the ink color process, in order to ensure the durability, solvent resistance, acid and alkali resistance of the finished ink and excellent printability, the color chip manufacturers often choose some high-grade pigment products. Most of the pigments under the influence of sunlight, temperature and humidity, pH, easy to change the molecular structure or crystal structure, resulting in pigment changes, the general resistance of organic pigments than inorganic pigment resistance is poor, therefore, ink must be appropriate The resistance material is adjusted to improve its resistance.
The application of organic pigments is based on the mechanical mixing of the fine particles and the colored carrier, so that the pigment particles are uniformly dispersed in the colored carrier to achieve the purpose of coloring, so it is always gathered in different degrees. Daily particles exist in the use of carriers. Pigment color chips are used to change the physical form of pigment molecules. Not only will the color light produce variants, but its effect may sometimes be more pronounced than the introduction of substituents, because the physical form of pigments will colorize and color the pigments. Force, transparency and other effects are more significant.
Inorganic pigments are pigments made from natural minerals and minerals. The main sources of minerals are five kinds of iron ore: hematite, limonite, magnetite, pyrite and siderite. Natural mineral pigments are generally of lower purity and darker color, but are less expensive. The synthetic inorganic pigments have a wide range of chromatograms, including bright colors, pure colors, hiding power, titanium dioxide in inorganic pigments, lead chrome yellow, iron oxide yellow, molybdate red, iron oxide red, iron blue, iron black and other products in building materials. , Coatings, engineering plastics are also widely used. In China's pigment color film products, a large part is the use of inorganic pigments. Its greatest advantage is its low price.
First , the main types of organic pigments
1. Azo pigment A pigment containing an azo group in its molecule. The diazo component often diazotized by aromatic amines or heteroaromatic amines is then combined with acetylarylamine, 2-naphthol, pyrazolone, 2-hydroxy-3-naphthoic acid or 2-hydroxy-3-naphthalene Coupling components such as formyl arylamine are coupled. Commonly used are: Lufthansa yellow, permanent red F4R, benzidine yellow and so on.
2. Lake pigments Water-insoluble pigments produced by the action of water-soluble dyes with inorganic salts, acids, carriers, and other precipitants. The characteristics are: more complete chromatogram, bright color, and low production cost. The main products are: acid lakes, salt lakes, alizarin lakes and so on.
3, phthalocyanine pigment The main color following blue and green. Its output accounts for about 1/4 of the organic pigment output, which is characterized by its excellent performance, easy fabrication, and low cost. The main species is copper-containing phthalocyanine blue (CI Pigment Blue 15).
4, quinophthalone pigment Trade name often known as red phthalocyanine and phthalocyanine purple. The heat resistance, lightfastness, and vividness of these pigments are comparable to those of phthalocyanines. Features are: small molecular weight, simple molecular structure, excellent performance. From the point of view of a pigment sheet, it is an important pigment used in printing inks for paints, plastics, and printing inks that require resistance. The main products such as PR122 red, PV19 purple and so on.
5. Other heterocyclic pigment organic pigments include dioxazine pigments, system pigments, thiadiazole pigments, anthraquinone and fluorenone pigments, ketone pigments, isoindolinone pigments, and isoindolines. Pigments, pyrrolopyrrole diketone pigments, and quinacridones have excellent performance.
Second, pigment color tablets commonly used organic pigment varieties
1. Yellow varieties The main yellow disazo pigments used are: PY12, PY13, PY14 and PY83. All have higher color strength, but the light fastness is normal except for PY83.
PY12 yellow is biphenylamine yellow, it is pure yellow, its main purpose is ink, EVA industry. The temperature of 317 ° C, density 1.24 ~ 1.53g/cm3. Lightfastness is good, transparency is good, coloring power is high, but mobility and heat resistance need attention.
PY13 yellow is also called benzidine yellow GR. It is yellowish and has a bright shade. It is greener than PY12. It still maintains excellent stability compared to PY17 cashmere rubber that is sent back to 150°C. Light fastness is good, not only for ink, rubber, but also for polypropylene fiber masterbatch.
PY14 Yellow, also known as Permanent Yellow G, is a red-yellow powder. The temperature of 336 ° C, density 1.35 ~ 1.64g/cm3. Strong coloring, good transparency, its biggest advantage is the low price. In the plastics industry, usage varies greatly from country to country. For polyolefin plastic coloring, pay great attention to mobility. In the ink industry, it is often used as a primary yellow color and has a wide range of applications.
PY83 yellow, ie permanent yellow HR, benzidine yellow HR. Red yellow. The color light is redder than Pigment Yellow 13, and the coloring power is also stronger. The most important feature is that the heat resistance is stable at 200°C, and it is excellent in light resistance, solvent resistance, acid resistance, and alkali resistance. Good light fastness also makes it widely used in the coloring of polyolefin plastics, rigid polyvinyl chloride and other plastic products. This kind of pigment color film is mainly used for printing gold and silver cards and aluminized film, which can fully display the advantages of the transparent properties of the color film.
Organic pigments are colored organic substances. Compared with inorganic pigments, organic pigments with a wide range of chromatograms have more vivid colors, brighter colors, and higher coloring power. It is gradually developed along with the technological progress of organic dyes. In contrast to dyes, organic pigments are insoluble in water and do not dissolve in the carrier. They color the substance to be colored in a state of highly dispersed particles. In the ink color process, in order to ensure the durability, solvent resistance, acid and alkali resistance of the finished ink and excellent printability, the color chip manufacturers often choose some high-grade pigment products. Most of the pigments under the influence of sunlight, temperature and humidity, pH, easy to change the molecular structure or crystal structure, resulting in pigment changes, the general resistance of organic pigments than inorganic pigment resistance is poor, therefore, ink must be appropriate The resistance material is adjusted to improve its resistance.
The application of organic pigments is based on the mechanical mixing of the fine particles and the colored carrier, so that the pigment particles are uniformly dispersed in the colored carrier to achieve the purpose of coloring, so it is always gathered in different degrees. Daily particles exist in the use of carriers. Pigment color chips are used to change the physical form of pigment molecules. Not only will the color light produce variants, but its effect may sometimes be more pronounced than the introduction of substituents, because the physical form of pigments will colorize and color the pigments. Force, transparency and other effects are more significant.
Inorganic pigments are pigments made from natural minerals and minerals. The main sources of minerals are five kinds of iron ore: hematite, limonite, magnetite, pyrite and siderite. Natural mineral pigments are generally of lower purity and darker color, but are less expensive. The synthetic inorganic pigments have a wide range of chromatograms, including bright colors, pure colors, hiding power, titanium dioxide in inorganic pigments, lead chrome yellow, iron oxide yellow, molybdate red, iron oxide red, iron blue, iron black and other products in building materials. , Coatings, engineering plastics are also widely used. In China's pigment color film products, a large part is the use of inorganic pigments. Its greatest advantage is its low price.
First , the main types of organic pigments
1. Azo pigment A pigment containing an azo group in its molecule. The diazo component often diazotized by aromatic amines or heteroaromatic amines is then combined with acetylarylamine, 2-naphthol, pyrazolone, 2-hydroxy-3-naphthoic acid or 2-hydroxy-3-naphthalene Coupling components such as formyl arylamine are coupled. Commonly used are: Lufthansa yellow, permanent red F4R, benzidine yellow and so on.
2. Lake pigments Water-insoluble pigments produced by the action of water-soluble dyes with inorganic salts, acids, carriers, and other precipitants. The characteristics are: more complete chromatogram, bright color, and low production cost. The main products are: acid lakes, salt lakes, alizarin lakes and so on.
3, phthalocyanine pigment The main color following blue and green. Its output accounts for about 1/4 of the organic pigment output, which is characterized by its excellent performance, easy fabrication, and low cost. The main species is copper-containing phthalocyanine blue (CI Pigment Blue 15).
4, quinophthalone pigment Trade name often known as red phthalocyanine and phthalocyanine purple. The heat resistance, lightfastness, and vividness of these pigments are comparable to those of phthalocyanines. Features are: small molecular weight, simple molecular structure, excellent performance. From the point of view of a pigment sheet, it is an important pigment used in printing inks for paints, plastics, and printing inks that require resistance. The main products such as PR122 red, PV19 purple and so on.
5. Other heterocyclic pigment organic pigments include dioxazine pigments, system pigments, thiadiazole pigments, anthraquinone and fluorenone pigments, ketone pigments, isoindolinone pigments, and isoindolines. Pigments, pyrrolopyrrole diketone pigments, and quinacridones have excellent performance.
Second, pigment color tablets commonly used organic pigment varieties
1. Yellow varieties The main yellow disazo pigments used are: PY12, PY13, PY14 and PY83. All have higher color strength, but the light fastness is normal except for PY83.
PY12 yellow is biphenylamine yellow, it is pure yellow, its main purpose is ink, EVA industry. The temperature of 317 ° C, density 1.24 ~ 1.53g/cm3. Lightfastness is good, transparency is good, coloring power is high, but mobility and heat resistance need attention.
PY13 yellow is also called benzidine yellow GR. It is yellowish and has a bright shade. It is greener than PY12. It still maintains excellent stability compared to PY17 cashmere rubber that is sent back to 150°C. Light fastness is good, not only for ink, rubber, but also for polypropylene fiber masterbatch.
PY14 Yellow, also known as Permanent Yellow G, is a red-yellow powder. The temperature of 336 ° C, density 1.35 ~ 1.64g/cm3. Strong coloring, good transparency, its biggest advantage is the low price. In the plastics industry, usage varies greatly from country to country. For polyolefin plastic coloring, pay great attention to mobility. In the ink industry, it is often used as a primary yellow color and has a wide range of applications.
PY83 yellow, ie permanent yellow HR, benzidine yellow HR. Red yellow. The color light is redder than Pigment Yellow 13, and the coloring power is also stronger. The most important feature is that the heat resistance is stable at 200°C, and it is excellent in light resistance, solvent resistance, acid resistance, and alkali resistance. Good light fastness also makes it widely used in the coloring of polyolefin plastics, rigid polyvinyl chloride and other plastic products. This kind of pigment color film is mainly used for printing gold and silver cards and aluminized film, which can fully display the advantages of the transparent properties of the color film.
Full Cassette Motorized Retractable Awning
Full Cassette Motorized Retractable Awning,Motorized Retractable Folding Arm Awnings,Full Cassette Retractable Motorized Awning,Full Cassette Retractable Motorised Awning
Hebei Charlotte Enterprise Co., Ltd. , https://www.clshadesails.com