Duprene rubber double-density injection shoemaking method and functional shoes

• Main Authors: WANG CHUNMEI, QIN LEI, WU YIHUI, LAI JUN, WANG XIUHANG, GAN GENGCHEN, LIANG GAOYONG
• Format: Patent
• Language: Chinese; English
• Published: 21.01.2009
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHARACTERISTIC FEATURES OF FOOTWEAR; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; FOOTWEAR; GENERAL PROCESSES OF COMPOUNDING; HUMAN NECESSITIES; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PARTS OF FOOTWEAR; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

The invention relates to a method for shoemaking by neoprene double-density injection. The method comprises the steps as follows: 1) after an upper, an inner sole and a middle sole are fixed in sequence, a small rear palm is nailed at the position of the heel of the middle sole to form a semifinished product of shoes; 2) dense glue is injected to a sole-centered die cavity for the first time, after a second last and a sole die are matched to be heated and pressed, the second last is removed to form a solid glue layer; then foaming adhesive is injected for the second time, an aluminium foot sheathed with the semifinished product of the shoe is put into the die cavity for matching moulds, heating and pressing, and a shoe blank is formed after mold stripping; 3) the shoe blank is processed for cold forming after being built with water gap glue, and the shoe is processed for subsequent treatment to obtain a finished product. A big sole of the invention comprises the solid glue layer and a foaming layer, thereby s