Seam Sealing Tape is heated by special equipment, and the heat-sealing tape is sewn on the knitted bone pinholes of waterproof and air-proof series products such as raincoats, tents, and air balloons to achieve sealing (water-leakage, air-leakage) effect. adhesive tape. As we all know, there will be pinholes in the processing and production of clothing, and of course the waterproof series is no exception. How to ensure that these needles are not leaking, such a seemingly simple problem has puzzled us over years, because ordinary tape does not stick to water. 
In the 20th century, only a few countries in the world used it, and the material was very expensive. It only appeared in countries with relatively developed military industries such as the United States and the Soviet Union, and it was only used in aerospace technology. Technological secrecy from other countries Types of seam sealing tapes: PVC, Composite PU,Pure PU(TPU), hot melt adhesive film, rubber tape, Non-woven tape and 3-layer Seam Tape. Technical standards for heat sealing tapes European toxic elements EN71.PART3:1994 safety testing standard EU toxic element EN1122:2001 safety testing standard EU 2002/61/EC Restriction of azo dyes EU 2002/61/EC Restriction of azo dyes Application of heat sealing tape: Seam sealing tapes are widely used in cold-proof clothing, ski jackets, down jackets, sailing suits, diving suits, tents, car and boat covers, raincoats, motorcycle raincoats, waterproof shoes and other waterproof related products, as well as space suits, air balloons, chemical protective clothing, etc. Anti-gas products. Belongs to the five-crossing category (hardware gluing / chemical industry) The formation of hot melt adhesive impurities and the solution Clean up the glue pot, improve the glue application environment, and make the hot melt glue impurities disappear. Hot melt adhesive needs to have a melting process before use. During the whole process, there may be other sundries mixed in. For example, when binding books, some paper fragments and dust may fall into the glue pot.
The glue pot will have more or less carbides that have been deposited over the years, possibly mixed with freshly melted glue, etc. Maybe a little dust entering by mistake will not have much impact on the use and performance of hot melt adhesive, but what if the glue itself needs to match the appearance of the product? When the hot melt adhesive is prepared, the main additives added are diluents, tackifiers, plasticizers, fillers and anti-aging agents. The function of the viscosity modifier is to reduce the viscosity of the substrate, improve the fluidity during construction, control the curing speed and increase the wettability of the glue to the joint surface. The diluents mainly include paraffin wax, microcrystalline paraffin, ozokerite, vegetable paraffin, mineral wax and other wax compounds. Generally, the paraffin variety with a melting point close to the base should be selected, because the melting point of the wax is too low, which will reduce the heat resistance of the hot melt adhesive. The compatibility of ethylene-vinyl acetate copolymers and wax compounds is closely related to the vinyl acetate content and the melting point of wax compounds. Usually, the higher the vinyl acetate content, the poorer compatibility, and the higher the melting point of wax compounds, the worse the compatibility. The function of the tackifier is to increase the bonding strength and flexibility of the hot melt adhesive film, and to improve the wettability between the glue and the bonding surface. Commonly used tackifiers are rosin resin, terpene resin, petroleum resin, coumarone resin and oil-soluble phenolic resin. The main component of rosin resin is C19H29COOH, there are more than ten isomers, and it has good compatibility with ethylene-vinyl acetate copolymer and other substrates. If the softening point is increased, it can be modified by methods such as polymerization, esterification and hydrogenation. The main component of terpene resin is (C5H8)n, which is also a variety of isomers, commonly used are terpene oil polymer and terpene phenolic polymer, etc. Jiangmen M.F.B.S. Machinery Co., Ltd. specializes in R&D, production and sales: medical protective clothing, outdoor sports clothing, footwear, casual clothing, yoga clothing, luggage and other industries-specific heat sealing tapes, Hot Melt Adhesive Films, no Seam fit material. Look forward to working with you.
