112results about How to "Not easy to degumming" patented technology

The invention discloses a shoe lining production process, which comprises gray fabric weaving, singeing treatment, pre-rolling hot water treatment, rolling alkali and piling, washing treatment, oxygen bleaching, setting and finishing, powder scattering coating, pre-baking, baking, calendaring, performing final inspection and coiling, and packaging the finished product. The shoe lining has good handfeel, high stiffness, dimensional stability, low shrinkage rate and a lasting retention effect; and after the shoe lining is arranged for a long time, the stiffness is not reduced, and the shoe lining is high in thickness, high in adhesive firmness, good in a calendaring effect, long in service life and environment-friendly and is difficult to degum.

The invention relates to a PLA composite fiber filament and a making process and application thereof. The PLA composite fiber filament is of a skin-core structure, and comprises an inner core layer and an outer skin layer wrapping the inner core layer, wherein the inner core layer is a continuous filament body, the filament body is made from a degradable material, the constituent material of the outer skin layer is mainly PLA, the PLA refers to polylactic acid, and air flow passages are formed between the inner core layer and the outer skin layer. The PLA composite fiber filament has the advantages that the PLA composite fiber filament not only is good in flexibility and uneasy to break and degum, but also can be completely biodegradable, which is conductive to protecting the environment.A filter tip made by using the PLA composite fiber filament has small suction resistance, uniform flow of flue gas, a good cooling effect and moderate strength.

The invention discloses a forming technology and a preparation method for a double-color and double-hardness sole. The forming technology and the preparation method for the double-color and double-hardness sole mainly includes the following steps: step 1, a mold is prepared, wherein a set of plastic injection mold is prepared; step 2, a plastic injection molding process is prepared, wherein a plastic injection molding machine is provided with two injection gun barrels which can be used for injecting plastics into the plastic injection mold simultaneously; step 3, the plastic injection molding process is carried out, wherein the plastic injection mold is placed on a mold frame of the plastic injection molding machine, the plastic injection molding machine is started, the two injection gun barrels are used for injecting the plastics into an upper mold body and a lower mold body of the plastic injection mold simultaneously, then the plastic injection mold is pre-pressed through a partition plate and then opened, the upper mold body and the lower mold body are separated, and then the partition plate is drawn out; and step 4, a bonding and cross-linked foaming forming process is carried out, wherein the upper mold body and the lower mold body are closed again, an upper-layer composite material and a lower-layer composite material are subjected to bonding and cross-linked foaming forming in a closed mold cavity, then the plastic injection mold is opened, and the double-color and double-hardness sole is obtained. According to the double-color and double-hardness sole produced through the preparation method, a shoe outsole portion and a shoe middle sole portion are not degummed when meeting water, do not separate from each other and are long in service live, the foaming forming process is fast, and a color bleeding phenomenon cannot happen.

The invention discloses a medical silica gel adhesive tape. The medical silica gel adhesive tape comprises a gelatinous layer and a cloth base material, wherein the cloth base material comprises one of a PE (polyethylene) film, a TPU (thermoplastic polyurethane) film and foam and a non-woven fabric material, and the adhesive tape comprises one of the PET film, the TPU film and the foam, the non-woven fabric material and the gelatinous layer sequentially from outside to inside. The adhesive tape provided by the invention is good in air permeability, good in effect of jointing with skin and less prone to degumming during the use, and can be used repeatedly.