The Teijin Group developed a polyester polymerization catalyst that is completely free of antimony and other heavy metals and is conducive to the protection of the global environment. It has now been registered as the “PURITY®†trademark and has entered mass production within the group. 
This heavy metal-free catalyst has now been used in various fields such as civil fibers, polyester bottles, and polyester films. Since this product can contribute greatly to reducing the global environmental load in all aspects including the disposal of old products, Teijin Group decided to expand the production of related products within the company and actively commit to transferring this technology to other environmental protection companies. Business.
Due to the environmental protection restrictions in Europe and other places, there have been some companies that previously produced polyesters containing no heavy metals for fiber and film products. However, these products are yellow in appearance and are generally used only where they are not normally available. The “PURITY®†products produced by Teijin Group are not inferior to the polyester products using heavy metals.
Does not contain heavy metals
(1) In general, many heavy metals are highly toxic and have a great adverse effect on the global environment. In Japan, there is a law called the “PRTR Law†(ie “About the Specific Chemical Substances for the Environmentâ€. Emissions and laws that promote improved management.) Limit the use of chemical elements that may have adverse effects on humans and ecosystems. Many heavy metals are subject to restrictions in this law.
(2) Heavy metal lanthanum is generally used as a polyester polymerization catalyst in the conventional polyester production process. In the production of polyester bottles or polyester films for food packaging, ruthenium is used as a polymerization catalyst.
(3) In this context, Teijin Group has developed a non-heavy metal catalyst with a main component of titanium, and plans to expand the production of this non-heavy metal-containing polyester product.
(4) The earth's titanium reserves ranked seventh among all chemical elements, and are widely used in dental medical materials and cosmetics. It has no adverse impact on human health and ecosystems, and is not subject to the "PRTR Law." It can be said that it is the best polymerization catalyst in all aspects of supply stability, safety, and environment.
"PURITY®" features
Because polyester does not contain harmful elements such as chlorine, it does not produce dioxin and other harmful substances when it is burned. And used products can also be recycled, so it can be said to be a green material. The "PURITY®" product has the following features in addition to the fact that it is completely free of heavy metals due to the use of titanium-based polymerization catalysts; it can increase the transparency of polyester products; make the surface of the polyester film smoother; and the quality of the product. In no way inferior to the usual products containing heavy metals or rare metal catalysts.
Future Promotion Plan for PURITY®
At this stage, "PURITY®" accounts for nearly 10% of Teijin Group's domestic polyester products. Now, certain conditions have been met in terms of technological upgrading and adjustment of the production system. The Teijin Group will expand the application of non-heavy metal products in its products, and at the same time begin to transfer technology to companies that value environmental protection and actively carry out promotional activities.
(1) Until 2010, Teijin Group's polyester yarns used for the production of clothing in Japan will all be produced using PURITY®. In combination with the "full-fiber-to-fiber" system of the complete recycling system, we are actively committed to providing environmentally friendly products to the community.
(2) By the end of 2008, 30% of bottled polyester produced in Japan will be produced using PURITY®.
(3) Actively transfer technology to domestic and foreign synthetic fiber companies and bottle polyester companies, and strive to popularize this technology and promote related products. Now, Teijin Group has begun to approach several companies in Japan and abroad to discuss technology transfer issues.
This heavy metal-free catalyst has now been used in various fields such as civil fibers, polyester bottles, and polyester films. Since this product can contribute greatly to reducing the global environmental load in all aspects including the disposal of old products, Teijin Group decided to expand the production of related products within the company and actively commit to transferring this technology to other environmental protection companies. Business.
Due to the environmental protection restrictions in Europe and other places, there have been some companies that previously produced polyesters containing no heavy metals for fiber and film products. However, these products are yellow in appearance and are generally used only where they are not normally available. The “PURITY®†products produced by Teijin Group are not inferior to the polyester products using heavy metals.
Does not contain heavy metals
(1) In general, many heavy metals are highly toxic and have a great adverse effect on the global environment. In Japan, there is a law called the “PRTR Law†(ie “About the Specific Chemical Substances for the Environmentâ€. Emissions and laws that promote improved management.) Limit the use of chemical elements that may have adverse effects on humans and ecosystems. Many heavy metals are subject to restrictions in this law.
(2) Heavy metal lanthanum is generally used as a polyester polymerization catalyst in the conventional polyester production process. In the production of polyester bottles or polyester films for food packaging, ruthenium is used as a polymerization catalyst.
(3) In this context, Teijin Group has developed a non-heavy metal catalyst with a main component of titanium, and plans to expand the production of this non-heavy metal-containing polyester product.
(4) The earth's titanium reserves ranked seventh among all chemical elements, and are widely used in dental medical materials and cosmetics. It has no adverse impact on human health and ecosystems, and is not subject to the "PRTR Law." It can be said that it is the best polymerization catalyst in all aspects of supply stability, safety, and environment.
"PURITY®" features
Because polyester does not contain harmful elements such as chlorine, it does not produce dioxin and other harmful substances when it is burned. And used products can also be recycled, so it can be said to be a green material. The "PURITY®" product has the following features in addition to the fact that it is completely free of heavy metals due to the use of titanium-based polymerization catalysts; it can increase the transparency of polyester products; make the surface of the polyester film smoother; and the quality of the product. In no way inferior to the usual products containing heavy metals or rare metal catalysts.
Future Promotion Plan for PURITY®
At this stage, "PURITY®" accounts for nearly 10% of Teijin Group's domestic polyester products. Now, certain conditions have been met in terms of technological upgrading and adjustment of the production system. The Teijin Group will expand the application of non-heavy metal products in its products, and at the same time begin to transfer technology to companies that value environmental protection and actively carry out promotional activities.
(1) Until 2010, Teijin Group's polyester yarns used for the production of clothing in Japan will all be produced using PURITY®. In combination with the "full-fiber-to-fiber" system of the complete recycling system, we are actively committed to providing environmentally friendly products to the community.
(2) By the end of 2008, 30% of bottled polyester produced in Japan will be produced using PURITY®.
(3) Actively transfer technology to domestic and foreign synthetic fiber companies and bottle polyester companies, and strive to popularize this technology and promote related products. Now, Teijin Group has begun to approach several companies in Japan and abroad to discuss technology transfer issues.
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