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A manufacturing process and technology for shoe upper leather, applied in small raw leather/big raw leather/leather/fur treatment, small raw leather/big raw leather/leather skin/fur chemical treatment, tanning treatment, etc., which can solve product performance and quality grades Gap and other problems, to achieve the effect of improving fullness, flat and fine grain, and reducing poor parts
Inactive Publication Date: 2015-07-15
ZHEJIANG JINXIN LEATHER
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[0002] my country is the world's largest shoe producer, exporter and consumer, ranking first in the world in terms of quantity, but compared with Italy, France and other shoe-making powerhouses, China There is still a big gap in shoe material research and development, product design, product performance and quality grades
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[0019] A kind of goat shoe upper leather production process, concrete operation process is as follows:
[0020] Fur: The domestic Hankou road goat skin is the preferred material. This leather is thick, rich, yellowish with fleshy red, and the grain is flat and fine.
[0021] Soaking in water: the purpose is to return the moisture of the raw hide to the fresh hide state, remove inorganic and organic dirt such as sediment, blood stains, salt and preservatives on the hide, and remove part of the soluble non-fibrin in the hide to infiltrate the material of the subsequent process And lay the foundation for the role. Use water between 18-22°C, the liquid ratio is 300 times the tare weight, the speed is 3-4 rpm; the time is 18-22 hours; add an appropriate amount of preservatives and immersion aids, and the ratio of skin to liquid and the temperature to the specified value, rotate for 1 hour, stop for 1 hour, then rotate for 5-10 minutes every hour after that, the total rotation ti...
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Abstract
The invention discloses a goat instep leather manufacturing technology, which comprises steps of water soaking, meat removing, lime coating, hair removing, lime soaking, lime removing, softening, acid soaking, tanning, blue leather sorting, water draining, grease cutting, re-tanning and dyeing, secondary water draining, vacuumizing, hanging, softening through vibration, stretching, paving on a plate, trimming, and painting. The technology is reasonable, the re-tanning and dyeing step is very important in the technology, the leather quality can be prominently improved by improving the re-tanning and dyeing technology, the growth lines and dorsal ridge lines are completely stretched out, the leather surface becomes finer, the leather yield is increased; the location difference of the leather is reduced, the fullness of whole leather is increased, the leather becomes more moistened, the production cost is reduced, and the leather becomes more natural and environment-friendly.
Description
Technical field: [0001] The invention relates to a production process of goat shoe upper leather. Background technique: [0002] my country is the world's largest producer, exporter and consumer of footwear, and ranks first in the world in terms of quantity. Big difference. The quality grade of footwear products is a comprehensive reflection of product design, durability, wearing comfort, safety performance and ecological environmental protection performance. [0003] Upper leather is the raw material for making shoes. On the surface of shoes, there are many raw materials for upper leather, including genuine leather upper leather, PU upper leather, PVC upper leather and so on. Genuine upper leather generally includes cowhide, sheepskin, pigskin, horsehide, snakeskin and so on. The leather shoes processed with high-grade goat leather with real leather feeling, soft texture, comfortable wearing and good hygienic performance are more and more favored by consumers. Invention...
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