Real leather material as well as preparation method and application thereof
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A leather and fur technology, applied in the field of real leather materials and its preparation, can solve the problems of poor waterproof and anti-fouling properties, etc.
Active Publication Date: 2021-04-20
山东丰泽源皮革有限公司
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[0002] Traditional floor leather is affordable, but its waterproof and anti-fouling properties are not good. If the waterproof, anti-fouling and flame-r
Method used
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preparation example Construction
[0028] The invention provides a kind of preparation method of genuine leather material, comprises the following steps:
[0029] (1) Carrying out immersion and depilation successively to animal hides to obtain depilated hides;
[0030] (2) performing the first acid treatment, pure vegetable tanning and aging on the depilated fur in sequence to obtain pure vegetable tanned fur;
[0031] (3) sequentially performing light chrome tanning, heavy vegetable tanning and second acid treatment on the pure vegetable tanned fur to obtain chrome / vegetable combined tanned fur;
[0032] (4) Retanning the chrome / vegetable combined tanned fur, adding waterproof, oil-proof and anti-fouling polymer, flame retardant, deodorant and formaldehyde scavenger during retanning, and then vacuum stretching drying to obtain true Leather material.
[0033] In the invention, the animal hides are soaked in water and depilated in sequence to obtain depilated hides. The present invention has no special requir...
Embodiment 1
[0054] (1) Carry out immersion and depilation successively to animal hides and skins to obtain depilated skins, wherein the temperature of immersion in water is 25 ℃, and the time is 5h, and the depilatory agent used for depilation contains 1.5wt% liming aid, 1.4wt% Na 2 S, 1.5wt% NaHS, 0.15wt% liming enzyme and 5wt% lime;
[0055] (2) The acid dipping solution with a pH value of 4 and a Baume value of 6.5 is used to acidify the depilated skin for 5 hours, and pure vegetable tanning is performed for 15 hours using quebracho extracts, chestnut extracts and wattle bark extracts. The mass of the tanned tannage is 40% of the mass of the unfurled hide, after which it is aged for 3 days;
[0056] (3) Carry out light chrome tanning on the pure vegetable tanned fur for 12 hours using a tanning material with a chromium powder content of 24%. Formaldehyde melamine, dicyandiamide and replacement tannin were used for re-vegetable tanning for 8 hours, and then acid was added to a pH value...
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Abstract
The invention provides a treatment method of a real leather material, and belongs to the technical field of leather materials. The method comprises the following steps: on the basis of raw animal skin, sequentially carrying out water immersion and depilation on the raw animal skin to obtain depilated skin, and sequentially carrying out first acid treatment, pure vegetable tanning and aging on the depilated skin to obtain pure vegetable tanned fur; sequentially carrying out light chrome tanning, heavy vegetable tanning and second acid treatment on the pure vegetable tanned fur to obtain chrome/vegetable combined tanned fur; and then sequentially coating the surface of the chromium/vegetable combined tanned fur with a waterproof, oil-proof and antifouling polymer, a flame retardant, an odor remover and a formaldehyde scavenger, and then performing vacuum toggling and drying to obtain the real leather material. The obtained real leather material has excellent three-proofing performance and flame retardant property; good elasticity, toughness and environmental protection performance are realized; and good heat insulation and sound insulation effects are realized.
Description
technical field [0001] The invention relates to the technical field of leather materials, in particular to a real leather material and its preparation method and application. Background technique [0002] Traditional floor leather is affordable, but its waterproof and stain resistance are not good. If the waterproof, stain resistance and flame retardancy of vegetable tanned floor leather can be improved by optimizing the process, the use value of floor leather will be greatly improved. Contents of the invention [0003] In view of this, the object of the present invention is to provide a real leather material and its preparation method and application. The real leather material obtained by the present invention has good multi-resistance, environmental protection, toughness and elasticity. [0004] In order to realize the purpose of the foregoing invention, the present invention provides the following technical solutions: [0005] The invention provides a kind of preparati...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information
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