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Basic nature and function of powder

Reading Volume:    Date:2021-09-15

  Paint, coating, solid components in dye can be made into high performance high adhesion, and new products can be made after airflow milling ultrafine. In papermaking, plastic and rubber products, solid fillers such as: calcium carbonate, titanium oxide, silicon oxide can produce high-performance copper sheets, plastics and rubber products.The basic characteristics of the powder

  powder (Powder Material) can be considered as a fourth trait other than the gas. Powder and solid have crystalline, with fluidity as liquid, exhibit flexflowing in different particle size (Gram size / granularity) as in different particles.

  The powder is a aggregate of a plurality of solid particles, and there is a certain interaction between particles. Considering the basic properties of a powder particles, the size, surface energy, surface construction, surface materiality of the particles are different, and the surface energy, and surface physical properties should be distinguished. If it is classified according to particle size, it can be divided into - generalized powder: 1 nm ~ 1mm, narrow powder:

  The powder is divided into 1 particle size as the boundary line, exhibiting physical and chemical properties. (See Table 1). <50um,Micro powder:1um~50Lun,Ultrafine powder:10nm-1um。 • Characteristics of coarse particles - no aggregation, fluidity increase.

  · The characteristics of microparticles - the increase of particles increase, and agglomeration occurs. The physical properties of the powder particles can be divided into particle properties and powder properties.

  Characteristics of the powder powder

  Powder for cosmetic can be divided into inorganic pigments (body pigments, white pigments, color pigments), organic pigments, natural pigments, pearlescent pigments, etc.

  Physical pigment: It is a raw material that constitutes a bone, with natural clay minerals such as mica, talc powder is most representative, and kaolin, calcium carbonate, magnesium carbonate, and the like. Organic Pigments: Representative as TAR Color, can be divided into three categories such as dyes, color starch, pigment.

  Dye (DYE): Soluble in water or solvent, a raw material having a dye function. Classification (water-soluble dye, oil-soluble dye) according to the chromophore.Pigments: pigment itself does not carry soluble groups, insoluble in water, oil, solvent, etc. According to the structure, it can be classified as azo (AZO) system, an indigo line, a phthalocyanine pigment, and the like. Compared with the color deposition, coloring force, hidden force, and light resistance.

  Coloric pigment (Lake): a precipitating agent, bonding metal salt or a special organic acid, is used for insoluble treatment. With the advancement of synthetic technology, there is constant new pigment to be developed, but only those safety (Safety) can be used in the cosmetic formula.

  Inorganlc Pigme NT): Also known as mineral pigments, prior to crushing natural minerals as pigments, but now most of them use synthetic inorganic compounds. The advantage is that light resistance, heat resistance, insoluble in organic media. The disadvantage is that distinctiveness and coloring force is weak than the organic pigment (Iron Oxide Green, TiO, Zno, Chromium Hy & Oxide Green). While although there is less color of the inorganic pigment compared to organic pigments, it is also widely used in a variety of liquid foundation, powder, eye shadow and other makeup products. Natural pigment: the pigment extracted from animal and plant, which is smoother than the synthetic pigment, light resistance, heat resistance, and drug resistance. Carmine is widely used in the makeup, which is forced to reduce the production due to the habitat of Carmine - Amazon is constantly destroyed.

  Pearl Pigment: Applied to lipstick, nail polish, eye shadow, blush and other products, recently applied to powder, cream, naches, makeup, cream, eyelashes Ointment and other products. In order to improve the surface treatment of powder characteristics

  Most of the pigment surfaces with hydroxyl, because of this characteristic, the cosmetic layer is easily sweat or sebum of the human body. flower. In order to improve this phenomenon, it can be chemically bonded to the hydroxyl group using surface treatment substances, allowing the surface of the pigment to have hydrophobicity. PigmentAnother purpose of the surface treatment is to enhance the dispersion of the raw material, improve the problem of light resistance, solvent resistance, and inhibit surface activity, and give a new sense of use or characteristics.

  Pigment surface treatment technology begins in Japan in the mid-1970s, and popularized the world in the 1980s.

  The basic characteristics of the powder are briefly described. When we developed the cosmetic formula, we should fully understand the characteristics of various powders, and use different powder raw materials in accordance with consumer preferences in different countries or regions. At present, with the advancement of technology, the development of powder has begun to combine geology, optical, food engineering, medicine and other fields, show new vitality.

  Strengthening environmental protection and reducing climate change risk is the necessary conditions for enterprise development, all the awareness of ALPA is from the perspective of creating a beautiful environment, abide by the "green development, environmental priority", and uses industrial waste As a power source, a circular economy solution for high value-in-consolidation utilization of fly ash, slag, steel slag, tailings, poisters, pool, and pool and other industrial solid waste.

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