Classification and application of bronze powder

July 4, 2012

Bronze powder’s raw material is copper-zinc alloy. It is a metallic pigment with scaly structure, floating performance in bonding compound, gold luster and pigment nature.  It is produced in special machining and surface chemistry. The bronze powder is a metallic pigment. If the gold oil or vanish are added in bronze powder (FCu 663), the colorful gold oil and gold lacquer will form. It is widely used in the printing, textile, printing, construction, decoration, craft jewelry, metal sculpture and other industries.

Gravure printing because of its brilliant metallic luster, contrast the subject and the dramatic effect, has been widely used in plastic, pictorial, high-grade packaging, cigarette shell, securities printing. Thus a higher demand on the copper powder, gloss, metallic, surface cover rate, particle size and distribution of the major technical indicators, traditional craft production of copper powder has been difficult to meet modern requirements and, therefore, the bronze powder’s depth research and development has important practical significance.

High levels of copper determination is still old iodimetry, a large amount of potassium iodide, high cost, time-consuming, while the newly developed photometric method because of the copper color reagent should not be to high levels of copper determination , it is necessary to study the development of new chromogenic reagent. Trial acetic acid - sodium acetate buffer solution to control pH, EDTA disunion salt as a chromogenic reagent, and determination of high levels of copper in the copper powder. EDTA masking zinc, aluminum and other elements in order to eliminate the interference. The EDTA spectrophotometric determination of high levels of copper in the copper powder obtained satisfactory results, the prospects for the development and application. It is particularly suitable for small businesses laboratory with relatively simple equipments.

In accordance with the particle size, bronze powder can be divided into 200 mesh bronze powder, 400 mesh bronze powder, 600 mesh bronze powder, 800 mesh bronze powder, 1000 mesh bronze powder by metal powder supplier. The greater the mesh is, the smaller the particle size and the greater the surface cover rate will be. The 200 mesh bronze powder is used in gold fabric printing, quick printing. And it is characterized by light and high metal sense. 400 mesh bronze powder is also suitable for screen printing, wallpaper, paint, and incorporated into the plastic. 600 mesh bronze powder is applied in gold fabric, screen printing and crafts coating.

800 mesh bronze powder is used in fabric printing, spray plastic paint, plastic, water-based and non-water-based purposed of wallpaper point paint. 1000-mesh bronze powder is used in the manufacture of high brightness, spray glue paint, wooden materials, screen printing inks and rubber convex plate ink. It is characterized by fine and high brightness. 1200-mesh bronze powder is used in printing ink, paint, plastic and silk screen ink. 150 mesh bronze powder has excellent performance, bright gloss and good stability. So it can be used in manufacturing canned offset printing ink.

Source:http://www.mhcmp.com

 

Whitening and speckle removing effect of astaxanthin

July 4, 2012

Now women are beginning to use cosmetics products. The cosmetics they use are changing. The cosmetics have many side effects. Many chemicals components in skin care products accidentally put the beauty into a disfigured. Astaxanthin is derived from raw material of natural marines. So its side effects in human body are small. And it is easy to be accepted by the body.

The astaxanthin supplement can effectively suppress the production of melanin up to 40%, and can significantly reduce the prec...


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Tips to avoid or reduce the intake of nitrite

July 3, 2012

Nitrites in food are mainly from two aspects: the first one is food additive and another source is the nitrogen fertilizer. The attractive color of meat products is formed by nitrite. Nitrite can have reactions with hemoglobin in the meat. It forms pink color that can increase appetite and flavor of the meat. In addition to become color agent for meat, the nitrite also plays a preservative role. It is mainly for the sausage, ham, luncheon meat and other foods. Chinese provisions require that ...


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Non ferrous metal powder

July 3, 2012

Non ferrous metal powder refers to the metal powder and alloy. It doesn’t contain the ferrous metal. According to the classification of iron and non iron, it means metal powder and alloy powder excluding ferrous metal. The difference between the two classifications is only about chromium and manganese. Among nearly 70 kinds of elements of non-ferrous metals, the metal powder products with important application account for about 1/3.

The copper powder can be used as raw materials of powder ...


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Generation and treatment of acne

July 3, 2012

Whelk is also known as acne pimples and acne. It is a hair follicles sebaceous chronic inflammatory disease. Most people think that its etiology is closely related to the androgen, the sebaceous glands and hair follicles microorganisms. In puberty, the androgen secretion increases and it will lead to increasing of synthesis and excretion of sebum. It also forms the keratosis proliferation of upper hair follicle, resulting in clogged pores. Then the fat suppository emerges.

In addition, genet...


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Origin of chia seed

July 2, 2012

In 3500 BC, chia seed became one of main foods for Aztecs. Chia seed can be used alone as a food. It can be eat blending with other grain. The Indians will drink the chia seeds which are soaked in water where in water. Sometimes, they made it into powders and squeezed it into the oil as staple foods or medicines.

The Aztecs believe that the medicinal value of chia seed is very high. Currently retain records of use chia seed in treatment of many diseases, and sometimes alone use chia seed, an...


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The application of ultrafine copper powder

July 2, 2012

Chip multilayer ceramic capacitor is one of the most important electronic components in circuit. Multilayer ceramic capacitor is connected together by more than one single-layer capacitances. It is composed by inner electrode, dielectric material and terminal electrode. Copper has small resistivity and its electro-migration speed is slow. It also has an advantage of inexpensive price. Metal copper powder is the inner electrode of MLCC. It should have the following characteristics: good disper...


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Development of astaxanthin market searches for an entry point

July 2, 2012

Astaxanthin is a natural carotenoid with higher antioxidant activity. It is mainly used in the aquaculture industry. With economic development and health concerns, especially the increase in age-related degenerative diseases, there are more demands for ingredients of carotenoid in improving antioxidant and immune functions. As a   food ingredient and dietary supplement, astaxanthin has more widely applications.

Among antioxidant functional food ingredients, there are many researches on β-ca...


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Consume misleading has a shock on international market of resveratrol

June 29, 2012

Global supply market value of resveratrol is $ 50.2 million. Among them, 70% is used in the U.S. dietary supplement market. Europe will continue to maintain its status of the world's second largest resveratrol market. While the Asia-Pacific region has a fastest development, especially in markets of Australia and New Zealand. However, resveratrol manufacturer declares that global market suffers the distress of misleading claims. It will have certain constraints on hot development scenarios of ...


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Advantages of pre alloyed powder as the bit matrix

June 29, 2012

Pre-alloy powder can be used as the binder of bit matrix. Compared with single metal powder in mechanical mixture, its superiority is reflected in the following areas: mechanical properties, the holding force of matrix alloy on diamond, oxidation and dirty of metal powder.

If the bonding metal is made of pre-alloy, the pre-alloy powder has a single melting point; its melting point can be controlled by adjusting the composition formula proportion and choice. Pre-alloyed powder than mechanical...


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