CN110184398A - Transparent leather and preparation method thereof - Google Patents
Transparent leather and preparation method thereof Download PDFInfo
- Publication number
- CN110184398A CN110184398A CN201910498341.9A CN201910498341A CN110184398A CN 110184398 A CN110184398 A CN 110184398A CN 201910498341 A CN201910498341 A CN 201910498341A CN 110184398 A CN110184398 A CN 110184398A
- Authority
- CN
- China
- Prior art keywords
- skin base
- ionic liquid
- leather
- preparation
- transparent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/44—Mechanical treatment of leather surfaces
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
- C14B1/00—Manufacture of leather; Machines or devices therefor
- C14B1/58—Drying
-
- C—CHEMISTRY; METALLURGY
- C14—SKINS; HIDES; PELTS; LEATHER
- C14C—CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING, IMPREGNATING, FINISHING; APPARATUS THEREFOR; COMPOSITIONS FOR TANNING
- C14C15/00—Apparatus for chemical treatment or washing of hides, skins, or leather
Abstract
The present invention relates to a kind of transparent leathers, wherein the light transmittance of the transparent leather is 46-74%, and shrinkage temperature is 90-110 DEG C, with a thickness of 0.4-1.4mm.The present invention also provides a kind of preparation methods of transparent leather, comprising: the skin base after providing tan is raw material；Immersion treatment is carried out to skin base using ionic liquid compositional liquor, and mechanical treatment is carried out by mixture of the rotary drum to ionic liquid compositional liquor and skin base；The surface of skin base is cleaned, then skin base is immersed into clear water；And skin base is taken out and dries, then press polish processing is carried out to skin base.
Description
Technical field
The present invention relates to a kind of transparent leathers and preparation method thereof, in particular to a kind of to keep the transparent of leather natural attribute
Leather and preparation method thereof.
Background technique
Traditional leather-making technology includes beam house, multiple working procedure contained by tanning process and finishing section, through these works
There is the fiber hole for being largely full of air due to internal in the leather obtained after sequence processing, lead to no apparent light transmission,
Opacity is shown in appearance.With increasingly strong to personalized and fashion-orientation product style demand on consumption market, tool
There is the transparent leather of light transmitting property to attract attention.
Currently, the prior art, when preparing transparent leather, the pelt after using deashing and softening is raw material, with swelling agent in water
Immersion treatment pelt in solution, then the pelt after expansion is dried, the pelt after then being dried with transparent liquid immersion treatment is transparent
Liquid is made of water, polyalcohol, nano silver, curing agent, and the leather-drying that will finally handle through transparent liquid obtains transparent leather.So
And when impregnating softening pelt using transparent liquid, the dosage of transparent liquid is big, and obtained leather products contain a large amount of natural constituents,
Influence the natural attribute of natural leather product.Meanwhile the shrinkage temperature of obtained transparent leather products is low, limits practical application
Value.
Summary of the invention
It is high that the present invention provides a kind of shrinkage temperatures, and does not change the transparent leather and preparation method of leather natural attribute,
It can effectively solve the above problems.
The present invention is implemented as follows:
A kind of transparent leather, which is characterized in that the light transmittance of the transparent leather is 46-74%, shrinkage temperature 90-
110 DEG C, with a thickness of 0.4-1.4 millimeters.
A kind of preparation method of transparent leather, comprising: the skin base after providing tan is raw material；Using ionic liquid compositional liquor pair
Skin base carries out immersion treatment, and carries out mechanical treatment by mixture of the rotary drum to ionic liquid compositional liquor and skin base；Clean skin
The surface of base, then skin base is immersed into clear water；And skin base is taken out and dries, then press polish processing is carried out to skin base.
The beneficial effects of the present invention are: making the shrinkage temperature of the transparent leather products of gained as raw material using skin base after tan
It improves, improves practical application value；It is destroyed between tropocollagen molecule using action temperature and safely controllable ionic liquid complex solvent
Hydrogen bond is slightly swollen materials with hide glue fibril, and the characteristic that is adhered by changing collagenous fiber bundle itself obtains transparent effect, without in skin
It is interior to introduce any other ingredient, maintain the natural characteristic of leather.
Detailed description of the invention
It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 is the preparation method flow chart of transparent leather provided in an embodiment of the present invention.
Specific embodiment
To keep the purposes, technical schemes and advantages of embodiment of the present invention clearer, implement below in conjunction with the present invention
The technical solution in embodiment of the present invention is clearly and completely described in attached drawing in mode, it is clear that described reality
The mode of applying is some embodiments of the invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
Domain those of ordinary skill every other embodiment obtained without creative efforts, belongs to the present invention
The range of protection.Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit below and is wanted
The scope of the present invention of protection is sought, but is merely representative of selected embodiment of the invention.Based on the embodiment in the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts belongs to this
Invent the range of protection.
In the description of the present invention, term " first ", " second " are used for description purposes only, and should not be understood as instruction or dark
Show relative importance or implicitly indicates the quantity of indicated technical characteristic.The feature of " first ", " second " is defined as a result,
It can explicitly or implicitly include one or more of the features.In the description of the present invention, the meaning of " plurality " is two
It is a or more than two, unless otherwise specifically defined.
The embodiment of the present invention provides a kind of transparent leather, and the light transmittance of the transparent leather is 46-74%, and shrinkage temperature is
90-110 DEG C, with a thickness of 0.4-1.4 millimeters.The color of the transparent leather is close with the original color of base is removed from office after tan but more shallow
It is light.
It please refers to shown in Fig. 1, the embodiment of the present invention provides a kind of method for preparing above-mentioned transparent leather comprising following step
It is rapid:
S1, the skin base after providing tan are raw material；
S2 carries out immersion treatment to skin base using ionic liquid compositional liquor, and by rotary drum to ionic liquid compositional liquor and
The mixture of skin base carries out mechanical treatment；
S3 cleans the surface of skin base, then skin base is immersed clear water；
S4 takes out and dries skin base, then carries out press polish processing to skin base.
In step sl, the skin base is by tanned leather, and the skin base can be wet blue base, dyeing skin base.
The skin base with a thickness of 0.4-1.4 millimeters.Wherein, the method for tan leather is unlimited, is as long as tanned leather can be obtained
It can.
In step s 2, the ionic liquid compositional liquor includes ionic liquid and complex solvent.The ionic liquid can be
1- allyl -3- methylimidazole villaumite (AmimCl), 1- ethyl-3-methylimidazole acetate (EmimAc), 1- butyl -3- methyl
Imidazoles villaumite (BmimCl), 1- ethyl-3-methylimidazole bromide (EmimBr), 1- butyl -3- methylimidazole hexafluorophosphate
([Bmim][PF6]).The complex solvent can be water, dehydrated alcohol, dimethyl sulfoxide, acetone.The ionic liquid is in ionic liquid
Percent by volume in body compositional liquor is 5-40%.
The ionic liquid compositional liquor carries out immersion treatment to the skin base, while in soaking process, the ionic liquid
The mixture of body ionic liquid compositional liquor and skin base is placed in rotary drum, and the rotary drum applies mechanism to mixture.It is described
The revolving speed of rotary drum is 8-12r/min, and temperature is 40-50 DEG C.The ionic liquid compositional liquor is to the soaking time of the skin base
3-12 hours.When immersion, the mass ratio of the skin base and the ionic liquid compositional liquor is 1:0.6-1:1.5, and changing liquid number is
1-3 times.The skin base is by impregnating the mechanical treatment with rotary drum until the ionic liquid compositional liquor infiltration skin base, described
The infiltration situation of ionic liquid compositional liquor can be observed by notch.It, can when the ionic liquid compositional liquor infiltrates into the skin base
Slight dissolution materials with hide glue fibril simultaneously is allowed to be swollen, and causes collagenous fibres generation to be closely adhered, eliminates skin base internal voids, can reduce
Reflection and refraction of the light inside leather, enhance the transmitance of light.
In step s3, it after the completion of infiltration, is sufficiently cleaned using surface of the cleaning agent to skin base.The cleaning agent can
For the complex solvent ingredient in ionic liquid compositional liquor, such as water, dehydrated alcohol, dimethyl sulfoxide, acetone.After cleaning, by the skin
Base immerses in clear water 0.5-1.5 hours, so that the ionic liquid of skin interior portion and other solvents ooze out into water.
In step s 4, it oozes out after being oozed out in skin base, skin base is taken out from clear water and dries after ionic liquid etc..It dries
Afterwards, mechanical progress press polish processing is aided with to the skin base, the temperature for the treatment of process remains at 80-140 DEG C.The skin base is being pressed
After light processing, transparency be can further improve.
Further further illustrate the present invention below in conjunction with specific embodiment, but the present invention not therefore and and by
Any restrictions.
Embodiment 1
Taking the wet blue obtained after chrome tanning is raw material (with a thickness of 0.4mm), takes and dries in the air after horse to half-dried, is soaked in 1- ethyl-
In 3- methylimidazole bromide/acetone compositional liquor (5%), make solid-liquid ratio 1:1.5, change liquid 3 times, mechanism is applied with rotary drum,
Revolving speed is 10r/min, and temperature is 45 DEG C, total processing time 12h.Infiltration situation is observed by notch.After the completion of infiltration, with third
Ketone sufficiently cleans epidermis face, then immerses 1h in clear water, oozes out into ionic liquid and organic solvent in water.Skin base is taken out, horse is taken
It dries, removes from office base after obtaining transparent tan after 110 DEG C of pushing light processings.By above-mentioned waste collection, filtering after evaporation, is recycled
To acetone and ionic liquid, the rate of recovery is respectively 70% and 98.6%.Removing from office base light transmittance is 65%, and shrinkage temperature is about 100 DEG C,
Color is light blue.
Embodiment 2
Taking the wet blue obtained after chrome tanning is raw material (with a thickness of 0.9mm), takes and dries in the air after horse to half-dried, is soaked in 1- ethyl-
In 3- methylimidazole acetate/dehydrated alcohol compositional liquor (45%), make solid-liquid ratio 1:0.6, change liquid 1 time, machine is applied with rotary drum
Tool effect, revolving speed 12r/min, temperature are 40 DEG C, total processing time 7.5h.Infiltration situation is observed by notch.It has permeated
Cheng Hou sufficiently cleans epidermis face with dehydrated alcohol, then immerses 1.5h in clear water, and ionic liquid and organic solvent is made to ooze out into water
In.Take out skin base, dry, obtain transparent tan after 140 DEG C of pushing light processings after remove from office base.It by above-mentioned waste collection, filters, steams
After hair, recycling obtains dehydrated alcohol and ionic liquid, and the rate of recovery is respectively 75% and 97.8%.Removing from office base light transmittance is 74%, is received
Contracting temperature is about 90 DEG C, and color is light blue.
Embodiment 3
Learn from else's experience retanning, treated that pelt is raw material (with a thickness of 1.4mm) for dyeing (color be red) process, dry in the air after taking horse
It is extremely half-dried, it is soaked in 1- butyl -3- methylimidazole hexafluorophosphate/water compositional liquor (25%), makes solid-liquid ratio 1:1, change liquid 2
It is secondary, mechanism, revolving speed 8r/min are applied with rotary drum, temperature is 50 DEG C, total processing time 3h.It is observed and is permeated by notch
Situation.After the completion of infiltration, epidermis face is cleaned sufficiently with flowing water, then immerse 1.5h in clear water, ooze out into ionic liquid in water.It takes
Skin base out, dry, obtain transparent tan after 80 DEG C of pushing light processings after remove from office base.By above-mentioned waste collection, filter, after evaporation,
Recycling obtains ionic liquid, the rate of recovery 98.0%.Removing from office base light transmittance is 46%, and shrinkage temperature is about 110 DEG C, and color is light
Red.
Leather base makes after the preparation method of transparent leather provided by the invention has the advantage that one, uses tan for raw material
Bright leather finish shrinkage temperature with higher, practical application potentiality are big；Two, using action temperature and safely controllable ionic liquid
Body compositional liquor destroys hydrogen bond between tropocollagen molecule tropocollagen molecule, is slightly swollen materials with hide glue fibril, by changing collagenous fiber bundle
The characteristic that is adhered of itself realizes transparent effect, without introducing any other ingredient intradermal, maintains the natural characteristic of leather；
Three, in conjunction with press polish processing technique, collagenous fibres further are adhered, reduce internal voids, enhance transparent effect.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, for this field
For technical staff, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any
Modification, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of transparent leather, which is characterized in that the light transmittance of the transparent leather is 46-74%, shrinkage temperature 90-110
DEG C, with a thickness of 0.4-1.4 millimeters.
2. a kind of preparation method of transparent leather, comprising:
Skin base after providing tan is raw material；
Immersion treatment is carried out to skin base using ionic liquid compositional liquor, and ionic liquid compositional liquor and skin base are mixed by rotary drum
It closes object and carries out mechanical treatment；
The surface of skin base is cleaned, then skin base is immersed into clear water；And skin base is taken out and dries, then press polish processing is carried out to skin base.
3. the preparation method of transparent leather as claimed in claim 2, which is characterized in that the skin base can be wet blue leather base, dye
Color removes from office one of base.
4. the preparation method of transparent leather as claimed in claim 2, which is characterized in that the ionic liquid compositional liquor include from
Sub- liquid and complex solvent, the ionic liquid are 1- allyl -3- methylimidazole villaumite (AmimCl), 1- ethyl -3- methyl
Imidazoles acetate (EmimAc), 1- butyl -3- methylimidazole villaumite (BmimCl), 1- ethyl-3-methylimidazole bromide
(EmimBr), one of 1- butyl -3- methylimidazole hexafluorophosphate ([Bmim] [PF6]), the complex solvent are water, nothing
One of water-ethanol, dimethyl sulfoxide, acetone, percent by volume of the ionic liquid in ionic liquid compositional liquor are 5-
40%.
5. the preparation method of transparent leather as claimed in claim 2, which is characterized in that the revolving speed of the rotary drum is 8-12r/
Min, rotary drum holding temperature are 40-50 DEG C.
6. the preparation method of transparent leather as claimed in claim 2, which is characterized in that the ionic liquid compositional liquor is to described
The soaking time of skin base is 3-12 hours.
7. the preparation method of transparent leather as claimed in claim 2, which is characterized in that in the mixture mixture skin base with
The mass ratio of ionic liquid compositional liquor is 1:0.6-1:1.5.
8. the preparation method of transparent leather as claimed in claim 2, which is characterized in that the method on the surface of cleaning skin base is to adopt
It is cleaned with cleaning agent, the cleaning agent is one of water, dehydrated alcohol, dimethyl sulfoxide, acetone.
9. the preparation method of transparent leather as claimed in claim 2, which is characterized in that the skin base impregnates 0.5- in clear water
1.5 hour.
10. the preparation method of transparent leather as claimed in claim 2, which is characterized in that the temperature of the press polish treatment process
Remain 80-140 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910498341.9A CN110184398B (en) | 2019-06-10 | 2019-06-10 | Transparent leather and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910498341.9A CN110184398B (en) | 2019-06-10 | 2019-06-10 | Transparent leather and preparation method thereof |
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| Publication Number | Publication Date |
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| CN110184398A true CN110184398A (en) | 2019-08-30 |
| CN110184398B CN110184398B (en) | 2021-12-28 |
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ID=67721058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201910498341.9A Active CN110184398B (en) | 2019-06-10 | 2019-06-10 | Transparent leather and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455118A (en) * | 2020-04-08 | 2020-07-28 | 四川大学 | Production method of transparent leather |
| CN112322806A (en) * | 2020-10-22 | 2021-02-05 | 四川大学 | Method for producing transparent leather based on organic tanning agent |
| CN112322807A (en) * | 2020-10-22 | 2021-02-05 | 四川大学 | Method for preparing transparent leather based on solution refractive index |
| CN114574636A (en) * | 2022-02-25 | 2022-06-03 | 中国皮革制鞋研究院有限公司 | Ecological colorful transparent soft leather and processing method thereof |
| CN116622919A (en) * | 2023-07-06 | 2023-08-22 | 四川大学 | Method for preparing transparent leather by adopting chrome-free tanning blank |
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| CN204048172U (en) * | 2014-09-03 | 2014-12-31 | 李德云 | The special Cold-proof gloves of scooter |
| CN108998600A (en) * | 2018-08-13 | 2018-12-14 | 四川大学 | A kind of transparent leather and its manufacturing method |
| CN208480767U (en) * | 2018-07-11 | 2019-02-12 | 深圳市荣盛时尚科技有限公司 | A kind of packsack convenient for charging |
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2019
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204048172U (en) * | 2014-09-03 | 2014-12-31 | 李德云 | The special Cold-proof gloves of scooter |
| CN208480767U (en) * | 2018-07-11 | 2019-02-12 | 深圳市荣盛时尚科技有限公司 | A kind of packsack convenient for charging |
| CN108998600A (en) * | 2018-08-13 | 2018-12-14 | 四川大学 | A kind of transparent leather and its manufacturing method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455118A (en) * | 2020-04-08 | 2020-07-28 | 四川大学 | Production method of transparent leather |
| CN111455118B (en) * | 2020-04-08 | 2021-10-22 | 四川大学 | Production method of transparent leather |
| CN112322806A (en) * | 2020-10-22 | 2021-02-05 | 四川大学 | Method for producing transparent leather based on organic tanning agent |
| CN112322807A (en) * | 2020-10-22 | 2021-02-05 | 四川大学 | Method for preparing transparent leather based on solution refractive index |
| CN114574636A (en) * | 2022-02-25 | 2022-06-03 | 中国皮革制鞋研究院有限公司 | Ecological colorful transparent soft leather and processing method thereof |
| CN114574636B (en) * | 2022-02-25 | 2023-08-29 | 中国皮革制鞋研究院有限公司 | Ecological color transparent soft leather and processing method thereof |
| CN116622919A (en) * | 2023-07-06 | 2023-08-22 | 四川大学 | Method for preparing transparent leather by adopting chrome-free tanning blank |
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| Publication number | Publication date |
|---|---|
| CN110184398B (en) | 2021-12-28 |
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Effective date of registration: 20220701 Address after: 324000 Building 1, No. 27, Wuyi Road, Quzhou City, Zhejiang Province Patentee after: ZHEJIANG TONG TIAN XING GROUP JOINT-STOCK CO.,LTD. Address before: No.15, shangxiadian Road, Cangshan District, Fuzhou City, Fujian Province Patentee before: FUJIAN AGRICULTURE AND FORESTRY University |