CN108130816A - A kind of manufacturing process of parchment - Google Patents
A kind of manufacturing process of parchment Download PDFInfo
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- CN108130816A CN108130816A CN201810011438.8A CN201810011438A CN108130816A CN 108130816 A CN108130816 A CN 108130816A CN 201810011438 A CN201810011438 A CN 201810011438A CN 108130816 A CN108130816 A CN 108130816A
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- leather
- rope
- parchment
- limewash
- manufacturing process
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/06—Vegetable or imitation parchment; Glassine paper
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- Treatment And Processing Of Natural Fur Or Leather (AREA)
- Noodles (AREA)
- Beans For Foods Or Fodder (AREA)
Abstract
The present invention relates to a kind of manufacturing process of parchment, specific steps include choosing suitable leather, clean spot, first time limewash impregnates, zeolite unhairing, and second of limewash impregnates, grease is struck off, third time limewash impregnates, and clear water is cleaned and impregnated, tied rope, restocking stretch, and scrape fat and strike off blood vessel, it dries in the shade, undercarriage is cut, polishing.The parchment good toughness of present invention process manufacture, is hardly damaged, ink adhesion is strong, and the holding time is long, not afraid of water, and insect prevention is mothproof.Manufacturing process of the present invention does not use tanning agent, and wastewater discharge is small, environmental-friendly.
Description
Technical field
The present invention relates to a kind of manufacturing process of parchment.
Background technology
Parchment is a kind of durable writing material of costliness, but parchment currently on the market is not real sheep mostly
Made of skin, but the imitative sheepskin prepared by chemical method.
Chinese patent CN106399602 A describe a kind of production method of sheepskin china picture-character paper, and manufacturing process is lime
Water immersion, stretching, unhairing, stretching, tanning, anti-corrosion, mud dipping, colorant impregnate.In the tanning step of the manufacturing process
The tanning agent used contains harmful element chromium, and not only production cost height more seriously causes serious environmental pollution, leather waste water
The a great problem as environmental protection is administered, leather nesting also pays heavy cost to administer leather waste water.
Invention content
The purpose of the present invention is to provide a kind of manufacturing process without using tanning agent, wastewater discharge is small, environmental-friendly sheep
Mulberry paper manufacturing process, is as follows：
（1）Select skin：Choose the leather of the damaged part such as no bur, Pork and beans, wound, incrustation, the edge of a knife, worm hole；
（2）Cleaning：The leather chosen is impregnated 6-24 hours with clear water, with high pressure water inside and outside cleaning up leather, especially
Bloodstain and colored spot must clean up；
（3）First time limewash impregnates：With the good leather of limewash soaking and washing, impregnate 2-8 days, it is small per 2-6 in soaking process
When stirring it is primary, stirring 5 minutes every time, minimum stirring daily 5 times, agitating mode is stirs up and down；
（4）Unhairing：Leather after limewash is impregnated is plucked with zeolite, and tail portion and corner processing are clean, are observed again after plucking
Whether the damaged part such as bur, Pork and beans, wound, worm hole is had, if any then needing to screen out；
（5）Second of limewash impregnates：Plucked leather is impregnated with limewash, is impregnated 2-8 days, stirring was primary per 2-6 hours, stirred
Mode is mixed to stir up and down；
（6）It deoils：Cleaning platform, by surface downward, with knife by grease scraped clean, paying attention to scraping cannot cause to scrape during fat
Trace；
（7）Third time limewash impregnates：The leather to be deoiled with limewash immersion, impregnates 2-8 days, and per 2-6 hours, stirring was primary, stirred
Mode is mixed to stir up and down；
（8）Clear water impregnates：It is first cleaned up with clear water, is then impregnated with clear water, impregnated 2-8 days, per 2-6 hours, stirring was primary,
Agitating mode is stirs up and down；
（9）Tied rope：At leather edge 0.1-3cm, along the uniform tied rope in leather periphery, adjacent rope spacing 6-11cm；
（10）Restocking：The rope of leather extremity portion is first fixed, then fixes remaining rope, extremity portion rope is stretched along four limbs
Direction tenses, remaining rope tenses one by one according to smooth vertical and horizontal distribution mode, and rate of tension is ascending, until all opening
Tightly；
（11）Scrape fat：First scrape flesh noodles, by knife vertically leather surface first erect scrape again it is horizontal scrape, to strike off leather surface water mark；Followed by
It is continuous to scrape, until whole greases are struck off, while blood vessel is all struck off, the rate of tension of side scraping adjustment rope；Flesh noodles has been scraped to scrape again
Surface, process are identical with scraping flesh noodles process；
（12）It dries in the shade：Indoors or shady place, fixed leather on the top of the shelf is dried in the shade 3 hours to 2 day time, keeps rope one
Directly in tensioning state, the elastic of rope is checked at any time, as loosened, need to be tensioned in time；
（13）Undercarriage：Any one rope is chosen to start to loosen, remaining rope according to the rope loosened away from first distance by
It is proximal and distal to loosen one by one, continuously decrease the rate of tension of rope, until removing leather completely；
（14）It cuts：Hard-edge is dismissed on the inside of along tied rope position；
（15）Polishing：It is first slightly polished with sand paper more than 600 mesh, then smart polishing is carried out with the surface of parchment leftover pieces.
Above-mentioned steps（1）Described in the one kind of leather in goat skin, sheepskin, ox-hide, horse skin.
Above-mentioned steps（1）Described in leather be fresh hide, salted hide or freeze skin in one kind.
Above-mentioned steps（3）Described in lime water concentration 1%-10%.
Above-mentioned steps（3）Described in lime water concentration be adjusted according to environment temperature, between 18-30 DEG C, 1%-5%；It is low
In 18 DEG C, 5%-10%.
Above-mentioned steps（3）Described in lime coolant-temperature gage be 26-28 DEG C.
Above-mentioned steps（5）Described in lime water concentration 0.01%-5%.
Above-mentioned steps（7）Described in lime water concentration 0.01%-1.5%.
Above-mentioned steps（11）Described in knife be fan-shaped knife.
The advantage of the invention is that：This patent technique leather by limewash three times impregnates intermediate tie to clean, lose hair or feathers,
It deoils, scrape the techniques such as fat, stretching, polishing, fully the intradermal adipose gland and adipocyte of relaxation leather, degreasing effect is apparent, effectively
Each position surface difference is eliminated, makes final parchment thickness uniform, the uniform indifference of paper texture.Sheep prepared by this patent technique
Mulberry paper good toughness, is hardly damaged, and the holding time is long, not afraid of water, and insect prevention is mothproof, and ink adhesion is strong, does not fade after printing and dyeing writing,
Through a long time remains to keep the style of carrying content after preserving, when people use without fishy smell, increase experience sense.Simultaneously originally
The parchment of patent technique manufacture does not destroy the cuticula of leather, the wilfulness and gloss of skin is maintained, for drawing personage
During portrait painting, image more true to nature.This patent manufacturing process does not use tanning agent, and wastewater discharge is small, environmental-friendly.
Specific embodiment
The following examples can make professional and technical personnel that the present invention be more fully understood, but therefore not send out this
It is bright to be limited among the embodiment described range.
Embodiment 1
（1）Select skin：Choose the fresh goat skin of the damaged part such as no bur, Pork and beans, wound, incrustation, the edge of a knife, worm hole；
（2）Cleaning：The leather chosen is impregnated 6 hours with clear water, with high pressure water inside and outside cleaning up leather, especially bloodstain
It must be cleaned up with colored spot；
（3）First time limewash impregnates：With the good leather of 26-28 DEG C of limewash soaking and washing, lime water concentration 3% impregnates 6 days,
Stirring in every 2 hours is primary in soaking process, and stirring 5 minutes, are stirred to stir up and down every time；
（4）Unhairing：Leather after limewash is impregnated is plucked with zeolite, and tail portion and corner processing are clean, are observed again after plucking
Whether the damaged part such as bur, Pork and beans, wound, worm hole is had, if any then needing to screen out；
（5）Second of limewash impregnates：Plucked leather is impregnated with the limewash of concentration 3%, is impregnated 6 days, stirring one in every 2 hours
It is secondary, it stirs to stir up and down；
（6）It deoils：Cleaning platform, by surface downward, with knife by grease scraped clean, paying attention to scraping cannot cause to scrape during fat
Trace；
（7）Third time limewash impregnates：The leather to be deoiled with the immersion of 1.5% limewash of concentration impregnates 6 days, stirring one in every 2 hours
It is secondary, it stirs to stir up and down；
（8）Clear water impregnates：It is first cleaned up with clear water, is then impregnated with clear water, impregnated 6 days, stirring in every 2 hours is primary, stirring
To stir up and down；
（9）Tied rope：At leather edge 0.1-3cm, along the uniform tied rope in leather periphery, adjacent rope spacing 6-11cm；
（10）Restocking：The rope of leather extremity portion is first fixed, then fixes remaining rope, extremity portion rope is stretched along four limbs
Direction tenses, remaining rope tenses one by one according to smooth vertical and horizontal distribution mode, and rate of tension is ascending, until all opening
Tightly；
（11）Scrape fat：First scrape flesh noodles, by knife vertically leather surface first erect scrape again it is horizontal scrape, to strike off leather surface water mark；Followed by
It is continuous to scrape, until whole greases are struck off, while blood vessel is all struck off, the rate of tension of side scraping adjustment rope；Flesh noodles has been scraped to scrape again
Surface, process are identical with scraping flesh noodles process；
（12）It dries in the shade：Indoors or shady place, fixed leather on the top of the shelf is dried in the shade 1 day time, checks the elastic of rope at any time,
Rope is kept to be constantly in tensioning state；
（13）Undercarriage：It chooses any one rope to start to loosen, remaining rope is according to the rope distance loosened away from first by near
And far loosen one by one, continuously decrease the rate of tension of rope, until removing leather completely；
（14）It cuts：Hard-edge is dismissed on the inside of along tied rope position；
（15）Polishing：It is first slightly polished with 600 mesh sand paper, then smart polishing is carried out with the surface of leather leftover pieces.
Embodiment 2
（1）Select skin：Choose the jelly sheepskin of the damaged part such as no bur, Pork and beans, wound, incrustation, the edge of a knife, worm hole；
（2）Cleaning：The leather chosen is impregnated 20 hours with clear water, with high pressure water inside and outside cleaning up leather, especially blood
Stain and colored spot must clean up；
（3）First time limewash impregnates：With the good leather of 26-28 DEG C of limewash soaking and washing, lime water concentration 1% impregnates 2 days,
Stirring in every 3 hours is primary in soaking process, and stirring 5 minutes, are stirred to stir up and down every time；
（4）Unhairing：Leather after limewash is impregnated is plucked with zeolite, and tail portion and corner processing are clean, are observed again after plucking
Whether the damaged part such as bur, Pork and beans, wound, worm hole is had, if any then needing to screen out；
（5）Second of limewash impregnates：Plucked leather is impregnated with the limewash of concentration 2%, is impregnated 3 days, stirring one in every 3 hours
It is secondary, it stirs to stir up and down；
（6）It deoils：Cleaning platform, by surface downward, with knife by grease scraped clean, paying attention to scraping cannot cause to scrape during fat
Trace；
（7）Third time limewash impregnates：The leather to be deoiled with the immersion of 1% limewash of concentration impregnates 4 days, and stirring in every 3 hours is primary,
It stirs to stir up and down；
（8）Clear water impregnates：It is first cleaned up with clear water, is then impregnated with clear water, impregnated 3 days, stirring in every 3 hours is primary, stirring
To stir up and down；
（9）Tied rope：At leather edge 0.1-3cm, along the uniform tied rope in leather periphery, adjacent rope spacing 6-11cm；
（10）Restocking：The rope of leather extremity portion is first fixed, then fixes remaining rope, extremity portion rope is stretched along four limbs
Direction tenses, remaining rope tenses one by one according to smooth vertical and horizontal distribution mode, and rate of tension is ascending, until all opening
Tightly；
（11）Scrape fat：First scrape flesh noodles, by knife vertically leather surface first erect scrape again it is horizontal scrape, to strike off leather surface water mark；Followed by
It is continuous to scrape, until whole greases are struck off, while blood vessel is all struck off, the rate of tension of side scraping adjustment rope；Flesh noodles has been scraped to scrape again
Surface, process are identical with scraping flesh noodles process；
（12）It dries in the shade：Indoors or shady place, fixed leather on the top of the shelf is dried in the shade 3 hours, checks the elastic of rope at any time, protected
It holds rope and is constantly in tensioning state；
（13）Undercarriage：It chooses any one rope to start to loosen, remaining rope is according to the rope distance loosened away from first by near
And far loosen one by one, continuously decrease the rate of tension of rope, until removing leather completely；
（14）It cuts：Hard-edge is dismissed on the inside of along tied rope position；
（15）Polishing：It is first slightly polished with 800 mesh sand paper, then smart polishing is carried out with the surface of leather leftover pieces.
Embodiment 3
（1）Select skin：Choose the salt ox-hide of the damaged part such as no bur, Pork and beans, wound, incrustation, the edge of a knife, worm hole；
（2）Cleaning：The leather chosen is impregnated 24 hours with clear water, with high pressure water inside and outside cleaning up leather, especially blood
Stain and colored spot must clean up；
（3）First time limewash impregnates：With the good leather of 26-28 DEG C of limewash soaking and washing, lime water concentration 10% impregnates 8
My god, stirring in every 4 hours is primary in soaking process, and stirring 5 minutes, are stirred to stir up and down every time；
（4）Unhairing：Leather after limewash is impregnated is plucked with zeolite, and tail portion and corner processing are clean, are observed again after plucking
Whether the damaged part such as bur, Pork and beans, wound, worm hole is had, if any then needing to screen out；
（5）Second of limewash impregnates：Plucked leather is impregnated with the limewash of concentration 1%, is impregnated 8 days, stirring one in every 6 hours
It is secondary, it stirs to stir up and down；
（6）It deoils：Cleaning platform, by surface downward, with knife by grease scraped clean, paying attention to scraping cannot cause to scrape during fat
Trace；
（7）Third time limewash impregnates：The leather to be deoiled with the immersion of 0.5% limewash of concentration impregnates 8 days, stirring one in every 6 hours
It is secondary, it stirs to stir up and down；
（8）Clear water impregnates：It is first cleaned up with clear water, is then impregnated with clear water, impregnated 8 days, stirring in every 6 hours is primary, stirring
To stir up and down；
（9）Tied rope：At leather edge 0.1-3cm, along the uniform tied rope in leather periphery, adjacent rope spacing 6-11cm；
（10）Restocking：The rope of leather extremity portion is first fixed, then fixes remaining rope, extremity portion rope is stretched along four limbs
Direction tenses, remaining rope tenses one by one according to smooth vertical and horizontal distribution mode, and rate of tension is ascending, until all opening
Tightly；
（11）Scrape fat：First scrape flesh noodles, by knife vertically leather surface first erect scrape again it is horizontal scrape, to strike off leather surface water mark；Followed by
It is continuous to scrape, until whole greases are struck off, while blood vessel is all struck off, the rate of tension of side scraping adjustment rope；Flesh noodles has been scraped to scrape again
Surface, process are identical with scraping flesh noodles process；
（12）It dries in the shade：Indoors or shady place, fixed leather on the top of the shelf is dried in the shade 2 day time, checks the elastic of rope at any time,
Rope is kept to be constantly in tensioning state；
（13）Undercarriage：It chooses any one rope to start to loosen, remaining rope is according to the rope distance loosened away from first by near
And far loosen one by one, continuously decrease the rate of tension of rope, until removing leather completely；
（14）It cuts：Hard-edge is dismissed on the inside of along tied rope position；
（15）Polishing：It is first slightly polished with 1000 mesh sand paper, then smart polishing is carried out with the surface of leather leftover pieces.
Comparative example
（1）Select skin：Choose the fresh goat skin of the damaged part such as no bur, Pork and beans, wound, incrustation, the edge of a knife, worm hole；
（2）Cleaning：The leather chosen is impregnated 6 hours with clear water, with high pressure water inside and outside cleaning up leather, especially bloodstain
It must be cleaned up with colored spot；
（3）Limewash impregnates：With the good leather of 26-28 DEG C of limewash soaking and washing, lime water concentration 3% is impregnated 6 days, was impregnated
Stirring in every 2 hours is primary in journey, and stirring 5 minutes, are stirred to stir up and down every time；
（4）Unhairing：Leather after limewash is impregnated is plucked with zeolite, and tail portion and corner processing are clean, are observed again after plucking
Whether the damaged part such as bur, Pork and beans, wound, worm hole is had, if any then needing to screen out；
（5）It deoils：Cleaning platform, by surface downward, with knife by grease scraped clean, paying attention to scraping cannot cause to scrape during fat
Trace；
（6）Clear water impregnates：It is first cleaned up with clear water, is then impregnated with clear water, impregnated 6 days, stirring in every 2 hours is primary, stirring
To stir up and down；
（7）Tied rope：At leather edge 0.1-3cm, along the uniform tied rope in leather periphery, adjacent rope spacing 6-11cm；
（8）Restocking：The rope of leather extremity portion is first fixed, then fixes remaining rope, extremity portion rope is stretched along four limbs
Direction tenses, remaining rope tenses one by one according to smooth vertical and horizontal distribution mode, and rate of tension is ascending, until all opening
Tightly；
（9）Scrape fat：First scrape flesh noodles, by knife vertically leather surface first erect scrape again it is horizontal scrape, to strike off leather surface water mark；It is further continued for
It scrapes, until whole greases are struck off, while blood vessel is all struck off, the rate of tension of side scraping adjustment rope；Flesh noodles rossing again is scraped
Face, process are identical with scraping flesh noodles process；
（10）It dries in the shade：Indoors or shady place, fixed leather on the top of the shelf is dried in the shade 1 day time, checks the elastic of rope at any time,
Rope is kept to be constantly in tensioning state；
（11）Undercarriage：It chooses any one rope to start to loosen, remaining rope is according to the rope distance loosened away from first by near
And far loosen one by one, continuously decrease the rate of tension of rope, until removing leather completely；
（12）It cuts：Hard-edge is dismissed on the inside of along tied rope position；
（13）Polishing：It is first slightly polished with 600 mesh sand paper, then smart polishing is carried out with the surface of leather leftover pieces.
Embodiment 1-3 and the comparative example parchment prepared are evaluated, evaluation results are shown in Table 1.
Parchment evaluation result prepared by 1 embodiment 1-3 of table and comparative example
From the evaluation result of embodiment 1-3 and comparative example can be seen that this patent technique fully relax leather intradermal adipose gland and
Adipocyte, degreasing effect is apparent, effectively eliminates each position surface difference, makes that final parchment thickness is uniform, and paper texture is equal
Even indifference, ink adhesion is strong, no fishy smell.
The foregoing describe the basic principles and main feature and advantages of the present invention of the present invention.The technical staff of the industry
It should be appreciated that the present invention is not limited to the above embodiments, the above embodiments and description only describe the present invention
Principle, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these variation and
Improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by appended claims and its equivalent
Object defines.
Claims (9)
1. a kind of parchment manufacturing process, it is characterised in that：It is as follows：
（1）Select skin：Choose the leather of the damaged part in no bur, Pork and beans, wound, incrustation, the edge of a knife and worm hole；
（2）Cleaning：The leather chosen is impregnated 6-24 hours with clear water, with high pressure water inside and outside cleaning up leather, especially
Bloodstain and colored spot must clean up；
（3）First time limewash impregnates：With the good leather of limewash soaking and washing, impregnate 2-8 days, it is small per 2-6 in soaking process
When stirring it is primary, stirring 5 minutes every time, minimum stirring daily 5 times, agitating mode is stirs up and down；
（4）Unhairing：Leather after limewash is impregnated is plucked with zeolite, and tail portion and corner processing are clean, are observed again after plucking
Whether bur is had, Pork and beans, wound, the damaged part in worm hole, if any then needing to screen out；
（5）Second of limewash impregnates：Plucked leather is impregnated with limewash, is impregnated 2-8 days, stirring was primary per 2-6 hours, stirred
Mode is mixed to stir up and down；
（6）It deoils：Cleaning platform, by surface downward, with knife by grease scraped clean, paying attention to scraping cannot cause to scrape during fat
Trace；
（7）Third time limewash impregnates：The leather to be deoiled with limewash immersion, impregnates 2-8 days, and per 2-6 hours, stirring was primary, stirred
Mode is mixed to stir up and down；
（8）Clear water impregnates：It is first cleaned up with clear water, is then impregnated with clear water, impregnated 2-8 days, per 2-6 hours, stirring was primary,
Agitating mode is stirs up and down；
（9）Tied rope：Along the uniform tied rope in leather periphery, adjacent rope spacing 6-11cm；
（10）Restocking：The rope of leather extremity portion is first fixed, then fixes remaining rope, extremity portion rope is stretched along four limbs
Direction tenses, remaining rope tenses one by one according to smooth vertical and horizontal distribution mode, and rate of tension is ascending, until all opening
Tightly；
（11）Scrape fat：First scrape flesh noodles, by knife vertically leather surface first erect scrape again it is horizontal scrape, to strike off leather surface water mark；Followed by
It is continuous to scrape, until whole greases are struck off, while blood vessel is all struck off, the rate of tension of side scraping adjustment rope；Flesh noodles has been scraped to scrape again
Surface, process are identical with scraping flesh noodles process；
（12）It dries in the shade：Indoors or shady place, fixed leather on the top of the shelf is dried in the shade 3 hours to 2 day time, keeps rope one
Directly in tensioning state, the elastic of rope is checked at any time, as loosened, need to be tensioned in time；
（13）Undercarriage：Any one rope is chosen to start to loosen, remaining rope according to the rope loosened away from first distance by
It is proximal and distal to loosen one by one, continuously decrease the rate of tension of rope, until removing leather completely；
（14）It cuts：Hard-edge is dismissed on the inside of along tied rope position；
（15）Polishing：It is first slightly polished with sand paper more than 600 mesh, then smart polishing is carried out with the surface of parchment leftover pieces.
2. parchment manufacturing process described in claim 1, it is characterised in that step（1）Described in leather be selected from goat skin, sheep
One kind in skin, ox-hide, horse skin.
3. parchment manufacturing process described in claim 1, it is characterised in that step（1）Described in leather be fresh hide, salted hide or jelly
One kind in skin.
4. parchment manufacturing process described in claim 1, it is characterised in that step（3）Described in lime water concentration 1%-10%.
5. parchment manufacturing process described in claim 1, it is characterised in that step（3）Described in lime water concentration according to environment temperature
Degree is adjusted, between 18-30 DEG C, 1%-5%；Less than 18 DEG C, 5%-10%.
6. parchment manufacturing process described in claim 1, it is characterised in that step（3）Described in lime coolant-temperature gage be 26-28 DEG C.
7. parchment manufacturing process described in claim 1, it is characterised in that step（5）Described in lime water concentration 0.01%-5%.
8. parchment manufacturing process described in claim 1, it is characterised in that step（7）Described in lime water concentration 0.01%-
1.5%。
9. parchment manufacturing process described in claim 1, it is characterised in that step（11）Described in knife be fan-shaped knife.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810011438.8A CN108130816B (en) | 2018-01-05 | 2018-01-05 | Manufacturing process of parchment paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810011438.8A CN108130816B (en) | 2018-01-05 | 2018-01-05 | Manufacturing process of parchment paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108130816A true CN108130816A (en) | 2018-06-08 |
| CN108130816B CN108130816B (en) | 2020-07-07 |
Family
ID=62399453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810011438.8A Active CN108130816B (en) | 2018-01-05 | 2018-01-05 | Manufacturing process of parchment paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108130816B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4391601A (en) * | 1980-12-26 | 1983-07-05 | Herman Shmuel Y | Writing parchment and methods for the production thereof |
| CN102199675A (en) * | 2011-04-12 | 2011-09-28 | 王学川 | Clean process for producing leather by using sturgeon skin |
| CN106399602A (en) * | 2016-06-16 | 2017-02-15 | 赵程诚 | Manufacturing method of sheepskin writing and painting paper |
| CN107338336A (en) * | 2017-09-08 | 2017-11-10 | 汪孝凌 | A kind of processing technology of leather and fur products |
-
2018
- 2018-01-05 CN CN201810011438.8A patent/CN108130816B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4391601A (en) * | 1980-12-26 | 1983-07-05 | Herman Shmuel Y | Writing parchment and methods for the production thereof |
| CN102199675A (en) * | 2011-04-12 | 2011-09-28 | 王学川 | Clean process for producing leather by using sturgeon skin |
| CN106399602A (en) * | 2016-06-16 | 2017-02-15 | 赵程诚 | Manufacturing method of sheepskin writing and painting paper |
| CN107338336A (en) * | 2017-09-08 | 2017-11-10 | 汪孝凌 | A kind of processing technology of leather and fur products |
Non-Patent Citations (1)
| Title |
|---|
| 杨爽等: "羊皮纸现代复制工艺", 《皮革科学与工程》 * |
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| Publication number | Publication date |
|---|---|
| CN108130816B (en) | 2020-07-07 |
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