Talc is not very familiar to most people, in fact, in our daily life, the figure of talc can be said to be everywhere. For example, most of the drugs in our home, cosmetics, books, plastic bags used in supermarkets, etc. may contain talcum powder. Moreover, the book "50 Minerals That Changed the Course of History" by the famous British popular science writer Eric Charing listed talc as one of the 50 minerals that changed the course of history.
Talc Source: Network
The main component of "talc powder" is magnesium silicate hydrate, molecular formula Mg3 (Si4O10) (OH)2, is a talc ore mined from nature, after mechanical grinding, made into various specifications of "talc powder". It has excellent physical and chemical properties such as lubricity, anti-sticky, flow-assisting, fire resistance, acid resistance, insulation, high melting point, chemical inactivity, good hiding power, softness, good gloss, strong adsorption, etc., and is widely used in medicine, food, cosmetics, coatings, paints, papermaking, ceramics and other industries.
According to the use, "talc" can be divided into: talc for cosmetics, talc for medicine and food, talc for coatings-paints, talc for papermaking, talc for plastics, talc for rubber, talc for cables, talc for ceramics, talc for waterproof materials, etc.
Taking talc powder provided by Guangxi Longguang Talc Development Co., Ltd. as an example, the main uses of talc products and different grades of talc are as follows:
Cosmetic grade talc: used in all kinds of emollient powder, beauty powder, talk powder, cosmetics surface agent, etc.
Medicine - Food grade talc: pharmaceutical tablets, icing, prickly heat powder and Traditional Chinese medicine formulas, food additives, isolating agents, etc.
Paint grade talc: used in white body pigments and all kinds of water-based, oil-based, resin industrial grade coatings, primers, protective paints, etc.
Paper grade talc: fillers for all kinds of paper and cardboard, wood asphalt control agent.
Plastic resin grade talc: used in polypropylene, nylon, polystyrene, polyvinyl chloride, polyethylene, polystyrene, ethylene-acetate copolymer and polyester and other plastics.
Rubber grade talc: used in rubber fillers and anti-stick agents for rubber products.
Cable grade talc: used for cable rubber reinforcer, cable isolating agent.
Ceramic grade talc: used in the manufacture of electric porcelain, radio porcelain, various industrial ceramics, architectural ceramics, daily ceramics and porcelain glaze, etc.
Waterproof material grade talc: used for waterproof membrane, waterproof coating, waterproof ointment, etc.
Talc filled masterbatch: used for resin, PP, PO, PS, ABS, HDPE, etc.
Carrierless talc filled masterbatch: for modified engineering plastics, etc.
Taco powder: used in adults and infants to absorb sweat, refresh the skin, reduce the occurrence of prickly heat.
This mineral, which changes the course of history, is widely used and demanding
At present, there are strict testing and monitoring of regulatory agencies in various countries for talc, and cosmetic grade talc powder is strictly tested and required. In 2017, China published the "Talc Industry Specification Conditions" for talc product quality and clearly stated:
The quality of block (granular) talc products conforms to the standard of "Talc" (GB/T 15341).
The quality of talc powder used as a food additive complies with the "National Standard for Food Safety Food Additive Talc" (GB 1886.246) standard.
The quality of medicinal talc products should comply with the provisions of national standards for drugs or relevant technical requirements such as the Pharmacopoeia of the People's Republic of China.
Talc for cosmetics shall comply with the requirements of the "Cosmetic Safety Technical Specification" and the "Talc Powder" (GB/T 15342) standard.
Physical and chemical properties requirements for cosmetic talc powder (GB/T 15342-2012)
Coatings - Paints, papermaking, plastics, rubber, cables, ceramics, waterproof materials, general talc product quality in line with the "talc" (GB/T 15342) standard.
Physical and chemical properties requirements for general talc (GB/T 15342-2012)
The focus of talc consumption structure has gradually shifted from the paper market to the plastic market
China's talc resources are relatively rich, excellent quality, resource reserves of 275.8535 million tons, ranking second in the world, is the world's largest talc producer and exporter. In 2019, China's talc production accounted for 33% of the world's total. Guangxi, Liaoning, Shandong, Jiangxi and Qinghai are rich in reserves and are the main 5 major production bases in China, of which Guangxi talc has excellent quality.
From the perspective of product demand market, the paper industry was once the world's largest consumer market for talc, due to the large number of paper mills using calcium carbonate instead of talc for papermaking, the focus of global talc consumption structure gradually shifted from the papermaking market to the plastics market. As the automotive industry develops in the direction of lightweighting, the demand for automotive plastics will further increase in the future, and it is expected that in the next few years, the consumption of talc in the field of plastics will exceed that of the paper industry, and the demand for automotive talc will grow steadily.
Guangxi Longguang Talc - to meet the application needs and safety requirements
Guangxi Longguang Talc Development Co., Ltd. (hereinafter referred to as "Longguang Talc"), located in Longsheng County, the hometown of Talc in China, is a large-scale talc joint-stock joint venture company with a long history integrating mining, production, research and development and sales.
Excellent resources + excellent products
Longguang talc has two major talc mines, rich in talc resources, and has proven reserves of more than 10 million tons.
The company's talc does not contain asbestos and harmful substances, the chemical composition is stable, because of its flake structure, high insulation, high transparency, high whiteness, high oil absorption, soft and creamy and low burn loss, low wear, low dispersion is known.
The main technical parameters of Longguang talc products
Meet the application needs and security requirements of all parties
Longguang talc can not only provide cosmetic grade, pharmaceutical-food grade, plastic resin grade and other grades of talc. And the company's osmanthus brand 200 mesh-10000 mesh talcum powder has long maintained the title of Guangxi famous brand products, which are widely used in medicine, cosmetics, food, engineering plastics, papermaking, coatings, paints, resins, rubber, ceramics, cables, waterproof materials and other industries.
The talc filled masterbatch produced by Longguang talc is made of ultra-fine talc powder as the main raw material, mixed with the carrier resin and related essential agents, and fully mixed by the high-performance double helix extruder and extruded for granulation. It has the characteristics of good dispersion in matrix resin, less than ordinary filling masterbatch, less impact on the transparency of the resin, uniform color, good processing performance, etc., mainly used for SHEET AND INJECTION MOLDING and HDPE transparent blown film filling in RELATED industries such as PP, PE, PO, PS, ABS and other related industries. At present, there are injection molding grade, blown film grade, cast film special, food/medicinal grade and other varieties.
In addition, carrierless talc filled masterbatches produced by Longguang talc have widespread and good use in modified engineering plastics:
(1) The selected pigment is talc of various specifications, the indicators are stable, and the filling amount of talc in the masterbatch > 98%.
(2) The new surface activation treatment technology is adopted, and the mixing with the resin is accurate, the dispersion in the resin is good and uniform, and the filling amount can reach 40%.
(3) Mixed with resin without dust, environmentally friendly and clean, fast unloading in the secondary granulation process, no return material, production efficiency is more than doubled than direct filling with talcum powder.
(4) Solve the previous use of talcum powder filling in order to avoid environmental pollution and need to seal the pipeline, storage tank, air compressor and other equipment input and the corresponding energy consumption problems, effectively reducing the cost of enterprises and the early investment of new plants.
(5) Can improve the surface rigidity of the product, and can greatly improve the heat-resistant temperature of the product, suitable for tableware, sheets, plates, auto parts, microwave disposable lunch boxes, car bumpers and a variety of injection heat-resistant home appliance shells.
Longguang talc can not only meet the application needs of all parties, but also meet the safety requirements. The products produced by Longguang talc have been confirmed by experts in the United States, Britain, Japan and other countries with the world's most advanced equipment and instruments, and the talc produced in the past 46 years is asbestos-free, and the metal content meets the EU REACH and ROHS requirements. Since 1997, it has passed ISO9001 quality management system, FSSC22000 food safety certification, ISO22000 food safety management system, ISO14001 environmental management system, and customs AEO certification.
At present, the talc powder, talc masterbatch and talcum powder produced by Longguang talc are sold to 30 provinces, cities and districts across the country, and exported to asia, Europe, the United States and Africa, and have sales offices in Guangzhou, Shanghai, Chongqing, Hangzhou, Wuhan, Changsha and other places. The company's high-quality products and services have been widely recognized.
brief summary
Talc is widely used and is one of the minerals that occupy an important position in the national economy. China's talc industry has also made great progress in the past 30 years, with the world's largest powder processing capacity, with competitive strength in the international market, talc industry has changed from a resource advantage to a processing advantage. In the next few years, the domestic demand for talc, especially medium and high-grade talc, will maintain a rapid growth rate. In the face of a wide range of market demands, this soft mineral requires a "safe" hard shell. Enterprises need to use domestic and foreign resources, deep processing, the formation of a virtuous circle between application demand and safe, high-quality supply, so as to continuously improve their competitiveness in the domestic and foreign markets.
Guangxi Longguang talc quality is reliable, Henan, Hebei, Shandong, Shanxi, Xinjiang, Inner Mongolia, Gansu, Ningxia, and 3 northeastern provinces, Shaanxi, Tianjin and other places customers or agents can consult Manager Wang (telephone 15877001528), Manager Luo (telephone 13471301770).
The information sources are Longguang Talc, China Science Daily, China Net Finance, Southern Metropolis Daily, HC Chemical Network, Huajing Intelligence Network, etc.