CN106320085B - A kind of preparation method of the easily peelable leather release liners of coiling-resistant - Google Patents
A kind of preparation method of the easily peelable leather release liners of coiling-resistant Download PDFInfo
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- CN106320085B CN106320085B CN201610758516.1A CN201610758516A CN106320085B CN 106320085 B CN106320085 B CN 106320085B CN 201610758516 A CN201610758516 A CN 201610758516A CN 106320085 B CN106320085 B CN 106320085B
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- Prior art keywords
- tobira
- release liners
- prepared
- leather
- parts
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- 239000010985 leather Substances 0.000 title claims abstract description 33
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 241000167562 Pittosporum tobira Species 0.000 claims abstract description 37
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 238000000576 coating method Methods 0.000 claims abstract description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229920001131 Pulp (paper) Polymers 0.000 claims abstract description 16
- 239000012141 concentrate Substances 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims abstract description 14
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000001035 drying Methods 0.000 claims abstract description 13
- 241000219000 Populus Species 0.000 claims abstract description 11
- 239000008367 deionised water Substances 0.000 claims abstract description 10
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 10
- 239000004372 Polyvinyl alcohol Substances 0.000 claims abstract description 8
- BHTJEPVNHUUIPV-UHFFFAOYSA-N pentanedial;hydrate Chemical compound O.O=CCCCC=O BHTJEPVNHUUIPV-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229920002451 polyvinyl alcohol Polymers 0.000 claims abstract description 8
- 239000002023 wood Substances 0.000 claims abstract description 8
- 238000005360 mashing Methods 0.000 claims abstract description 7
- 239000002245 particle Substances 0.000 claims description 30
- 239000008236 heating water Substances 0.000 claims description 12
- 238000004513 sizing Methods 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 239000000706 filtrate Substances 0.000 claims description 6
- 235000019812 sodium carboxymethyl cellulose Nutrition 0.000 claims description 6
- 229920001027 sodium carboxymethylcellulose Polymers 0.000 claims description 6
- 238000011282 treatment Methods 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 239000003643 water by type Substances 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims 1
- 230000004048 modification Effects 0.000 claims 1
- 229940068984 polyvinyl alcohol Drugs 0.000 claims 1
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 4
- 238000001816 cooling Methods 0.000 abstract description 2
- 238000001704 evaporation Methods 0.000 abstract description 2
- 239000002649 leather substitute Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 238000004132 cross linking Methods 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 244000055346 Paulownia Species 0.000 description 4
- 238000002788 crimping Methods 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 230000008023 solidification Effects 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- 238000001914 filtration Methods 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- 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
- D21H27/001—Release paper
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/02—Material of vegetable origin
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/04—Hydrocarbons
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/16—Sizing or water-repelling agents
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Paper (AREA)
Abstract
The invention discloses a kind of preparation method of the easily peelable leather release liners of coiling-resistant, belong to release liners preparing technical field.The fresh blade of tobira is made to be mixed with glutaraldehyde water solution after graininess and fixed by the present invention first, then with n-hexane agitating and heating, re-evaporation to obtain tobira blade wax concentrate to dry, by itself and diversiform-leaved poplar wood wood-pulp board, deionized water is through mashing, defibrination, ultrasonic disperse processing, modified wood pulp dispersed paste is made, copy paper is carried out to dispersed paste, squeezing is handled, modified page must be dried, coating fluid is then prepared as primary raw material using polyvinyl alcohol processing is coated to modified page, treat that paper Drying and cooling can obtain a kind of easily peelable leather release liners of coiling-resistant, preparation technology of the present invention is simple, obtained leather is moderate with release liners peel strength, release is good, it is not easy to crimp in wet condition or under Wet Out, manufactured leather goods surface gloss is good, soft handle, have a wide range of applications space.
Description
Technical field
The invention discloses a kind of preparation method of the easily peelable leather release liners of coiling-resistant, belongs to release liners technology of preparing neck
Domain.
Background technology
With the raising of living standards of the people, the synthetic leather industry fast development in China.Release liners are leather industry paper,
As carrier when producing artificial leather, paste resin is coated with its release layer, it is foamed PROCESS FOR TREATMENT, drying, crosslinking, solid
Change sizing, then peeled off from paper, produce zero diopter or the artificial leather of embossing.
Release liners are also known as barrier paper, separate paper, silicone oil paper.It is that one kind prevents prepreg adhesion, prepreg can be protected again
Not contaminated separate paper.Release liners method is the most commonly used technique of existing production artificial leather, synthetic leather, and its action principle is：
To be prefabricated with the release liners of dermatoglyph pattern or pattern-free as carrier, by imitation leather product surface material, such as the third of polyurethane
Ketone solution, directly entirely it is coated in the method for roller coat on release liners surface, then through drying, heating plasticizing, and can basis
Need to continue to be coated with middle level or foaming layer or bottom and tack coat etc., then stick base cloth is smooth, then by plus
Thermoplastification, finally the release liners (carrier) with dermatoglyph pattern or un-patterned layer are peeled off from surface layer, the dermatoglyph on such paper
Pattern or synthetic leather coating are just molded on surface layer, so as to realize the purpose of imitation leather.
It is reported that domestic there are the 100 a plurality of production lines using release liners imitation leather-making, about 6000 tons of release liners are needed year, all
By import.The domestic research to release liners starts from 1980, but technology does not reach a standard, external only to sell paper technology not for sale again, causes
Release liners production domesticization turns into a hard nut to crack.Leather prepared by prior art is easily crimped with release liners in wet environment, paper
It is undesirable to open release, when producing artificial leather, leather is made and is not easy to peel off from release liners, and obtained artificial leather surface silk is slided
Sense and oily wax sense are bad.
The content of the invention
Present invention mainly solves technical problem：The release liners prepared for current technology easily crimp in wet environment,
Artificial leather is not easy to peel off from release liners during preparation, and the problem of obtained artificial leather surface silk smooth felling and bad oily wax sense, carries
For a kind of preparation method of the easily peelable leather release liners of coiling-resistant, after first graininess is made in the fresh blade of tobira by this method
Fixation is mixed with glutaraldehyde water solution, then to obtain tobira blade wax concentrate to dry with n-hexane agitating and heating, re-evaporation,
Itself and diversiform-leaved poplar wood wood-pulp board, deionized water are handled through mashing, defibrination, ultrasonic disperse, modified wood pulp dispersed paste is made, to dividing
Dissipate slurry and carry out copy paper, squeezing processing, modified page must be dried, then prepare coating fluid to changing by primary raw material of polyvinyl alcohol
Property page is coated processing, treats that paper Drying and cooling can obtain a kind of easily peelable leather release liners of coiling-resistant, the present invention passes through
Tobira blade wax is extracted, makes its uniform load to diversiform-leaved poplar wood-fibred surface, it is big due to containing in diversiform-leaved poplar wood-fibred
Inorganic salts are measured, the paper water resistance prepared with diversiform-leaved poplar wood-fibred is preferable, and peel strength is moderate, and release is good, in wet environment
It is not easy to crimp under lower or Wet Out, manufactured leather goods surface gloss is good, soft handle, has a wide range of applications space.
In order to solve the above-mentioned technical problem, the technical solution adopted in the present invention is：
（1）The fresh blade of tobira is collected, with clear water washing surface and naturally dry, its air-flow crushing is collected into obtain pittosporum tobira
Flower leaf particles, in mass ratio 1:10, tobira leaf particles are stirred with mass fraction for 5% glutaraldehyde water solution
And 20~24h of fixed leaf particles；
（2）After the completion of to be fixed, filter and collect leaf particles, in mass ratio 1:5, by tobira leaf particles with just oneself
Alkane, which is stirred, to be placed in conical flask, 1~2h of heating water bath at 55~60 DEG C, and after the completion for the treatment of heating water bath, filtering is simultaneously
Filtrate is collected, the rotary evaporated to dryness at 45~50 DEG C, is prepared into tobira blade wax concentrate；
（3）In mass ratio 1:3:5, diversiform-leaved poplar wood wood-pulp board, tobira blade wax concentrate and deionized water are stirred mixed
10~15min is closed, then 10% is concentrated into beater mashing processing to slurry concentration, then handles 1~2h with fiberizer, with
Ultrasonic disperse handles 10~15min under 200~300W afterwards, is prepared into modified wood pulp dispersed paste；
（4）The dispersed paste of above-mentioned preparation is placed in into handsheet in handsheet machine to handle, l Water Paper page is placed in hydraulic press, 5
25~30s is squeezed under~8MPa, is waited after the completion of squeezing, is placed at 100~105 DEG C and dries 3~5min, drying is prepared into and changes
Property page, it is standby；
（5）Count in parts by weight, weigh 45~50 parts of AKD sizing agents, 5~10 parts of sodium carboxymethylcelluloses, 3~5 respectively
Part polyvinyl alcohol and 35~40 parts of deionized waters are stirred and are placed in beaker, under 200~300W ultrasonic disperse 10~
15min, it is prepared into coating fluid；
（6）By step（4）The modified page of drying of preparation is placed on coating machine, and modified page is coated with coating fluid
Processing, it is 0.1mm to control each coating thickness, is often coated with once to be placed at 95~100 DEG C and dries 45~60s, treats repeatedly
After being coated with 3 times, it is placed at 120~125 DEG C and dries 2~3min, then standing, which is cooled to room temperature, can be prepared into a kind of resist
Crimp easily peelable leather release liners.
The present invention application process be：Dermatine paste resin raw material is coated on release liners table produced by the present invention
Face, then after drying, crosslinking, solidification at a temperature of 160~210 DEG C, then peeled away from release liners, produce dermatine.Through
Detection, leather produced by the present invention is high with release liners intensity, and peel strength is 18~23N/m, is repeated under high temperature or wet environment
Using 25~30 times, crimping does not occur in paper or bad situation is glued on surface, and release is good, and manufactured leather goods surface gloss is good,
Feel is smooth.
The beneficial effects of the invention are as follows：
（1）Leather produced by the present invention is moderate with release liners stripping peel strength, and release is good, in wet condition or soaks
In the case of be not easy to crimp；
（2）Leather produced by the present invention is high with release liners intensity, in the case where heating use, is not produced using more than 20 times
Curling, surface not dry linting, be not destroyed, manufactured leather goods surface gloss is good, soft handle.
Embodiment
The fresh blade of tobira is collected first, with clear water washing surface and naturally dry, its air-flow crushing is collected extra large
Paulownia leaf particles, in mass ratio 1:10, tobira leaf particles and mass fraction are mixed for 5% glutaraldehyde water solution stirring
Merge 20~24h of fixed leaf particles；After the completion of to be fixed, filter and collect leaf particles, in mass ratio 1:5, by tobira
Leaf particles are stirred with n-hexane and are placed in conical flask, and 1~2h of heating water bath, treats heating water bath at 55~60 DEG C
After the completion of, filter and collect filtrate, the rotary evaporated to dryness at 45~50 DEG C, be prepared into tobira blade wax concentrate；With
Afterwards in mass ratio 1:3:5, diversiform-leaved poplar wood wood-pulp board, tobira blade wax concentrate and deionized water are stirred 10~
15min, 10% then is concentrated into beater mashing processing to slurry concentration, then 1~2h is handled with fiberizer, then 200
Ultrasonic disperse handles 10~15min under~300W, is prepared into modified wood pulp dispersed paste；The dispersed paste of above-mentioned preparation is placed in
Handsheet is handled in handsheet machine, and l Water Paper page is placed in hydraulic press, and 25~30s is squeezed under 5~8MPa, is waited after the completion of squeezing, will
It, which is placed at 100~105 DEG C, dries 3~5min, is prepared into and dries modified page, standby；Then count, claim respectively in parts by weight
45~50 parts of AKD sizing agents of amount, 5~10 parts of sodium carboxymethylcelluloses, 3~5 parts of polyvinyl alcohol and 35~40 parts of deionized waters are stirred
Mix mixing to be placed in beaker, 10~15min of ultrasonic disperse, is prepared into coating fluid under 200~300W；Then by above-mentioned steps
The modified page of drying of preparation is placed on coating machine, and processing is coated with coating fluid to modified page, controls coating every time thick
Spend for 0.1mm, be often coated with once to be placed at 95~100 DEG C and dry 45~60s, after being coated with 3 times repeatedly, be placed on
2~3min is dried at 120~125 DEG C, is then stood and is cooled to room temperature and can be prepared into a kind of easily peelable leather of coiling-resistant with release
Paper.
Example 1
The fresh blade of tobira is collected first, with clear water washing surface and naturally dry, its air-flow crushing is collected extra large
Paulownia leaf particles, in mass ratio 1:10, tobira leaf particles and mass fraction are mixed for 5% glutaraldehyde water solution stirring
Merge fixed leaf particles 20h；After the completion of to be fixed, filter and collect leaf particles, in mass ratio 1:5, by tobira blade
Particle is stirred with n-hexane and is placed in conical flask, the heating water bath 1h at 55 DEG C, after the completion for the treatment of heating water bath, filtering
And filtrate is collected, the rotary evaporated to dryness at 45 DEG C, it is prepared into tobira blade wax concentrate；Subsequent in mass ratio 1:3:5,
Diversiform-leaved poplar wood wood-pulp board, tobira blade wax concentrate and deionized water are stirred 10min, then with beater mashing
Reason to slurry concentration is concentrated into 10%, then handles 1h with fiberizer, and then ultrasonic disperse handles 10min under 200W, is prepared into
Modified wood pulp dispersed paste；The dispersed paste of above-mentioned preparation is placed in into handsheet in handsheet machine to handle, l Water Paper page is placed in hydraulic press
In, 25s is squeezed under 5MPa, is waited after the completion of squeezing, is placed at 100 DEG C and dries 3min, is prepared into and dries modified page, it is standby
With；Then count in parts by weight, respectively 45 parts of AKD sizing agents of weighing, 5 parts of sodium carboxymethylcelluloses, 3 parts of polyvinyl alcohol and 35 parts
Deionized water, which is stirred, to be placed in beaker, and ultrasonic disperse 10min, is prepared into coating fluid under 200W；Then by above-mentioned step
Suddenly the modified page of drying prepared is placed on coating machine, is coated processing with coating fluid to modified page, is controlled coating every time
Thickness is 0.1mm, is often coated with once to be placed at 95 DEG C and dries 45s, after being coated with 3 times repeatedly, is placed at 120 DEG C and does
Dry 2min, then standing, which is cooled to room temperature, can be prepared into a kind of easily peelable leather release liners of coiling-resistant.
This example operation is easy, in use, dermatine paste resin raw material is applied to produced by the present invention release
Paper surface, then after drying, crosslinking, solidification at a temperature of 160 DEG C, then peeled away from release liners, produce dermatine.Through inspection
Survey, leather produced by the present invention is high with release liners intensity, peel strength 18N/m, 25 is reused under high temperature or wet environment
Secondary, crimping does not occur in paper or bad situation is glued on surface, and release is good, and manufactured leather goods surface gloss is good, and feel is smooth.
Example 2
The fresh blade of tobira is collected first, with clear water washing surface and naturally dry, its air-flow crushing is collected extra large
Paulownia leaf particles, in mass ratio 1:10, tobira leaf particles and mass fraction are mixed for 5% glutaraldehyde water solution stirring
Merge fixed leaf particles 22h；After the completion of to be fixed, filter and collect leaf particles, in mass ratio 1:5, by tobira blade
Particle is stirred with n-hexane and is placed in conical flask, the heating water bath 1.5h at 58 DEG C, after the completion for the treatment of heating water bath, mistake
Filter and collect filtrate, the rotary evaporated to dryness at 48 DEG C, be prepared into tobira blade wax concentrate；Subsequent in mass ratio 1:3:
5, diversiform-leaved poplar wood wood-pulp board, tobira blade wax concentrate and deionized water are stirred 13min, are then beaten with beater
Processing to slurry concentration is concentrated into 10%, then handles 1.5h with fiberizer, and then ultrasonic disperse handles 13min, system under 250W
It is standby to be modified wood pulp dispersed paste；The dispersed paste of above-mentioned preparation is placed in into handsheet in handsheet machine to handle, l Water Paper page is placed in oil
In press, 28s is squeezed under 7MPa, is waited after the completion of squeezing, is placed at 103 DEG C and dries 4min, be prepared into dry modified paper
Page, it is standby；Then count in parts by weight, weigh 48 parts of AKD sizing agents, 8 parts of sodium carboxymethylcelluloses, 4 parts of polyvinyl alcohol respectively
It is stirred and is placed in beaker with 38 parts of deionized waters, ultrasonic disperse 13min, is prepared into coating fluid under 250W；Then will
Dry modified page prepared by above-mentioned steps is placed on coating machine, is coated processing with coating fluid to modified page, control is every
Secondary coating thickness is 0.1mm, is often coated with once to be placed at 98 DEG C and dries 53s, after being coated with 3 times repeatedly, is placed on 123
2.5min is dried at DEG C, then standing, which is cooled to room temperature, can be prepared into a kind of easily peelable leather release liners of coiling-resistant.
This example operation is easy, in use, dermatine paste resin raw material is applied to produced by the present invention release
Paper surface, then after drying, crosslinking, solidification at a temperature of 185 DEG C, then peeled away from release liners, produce dermatine.Through inspection
Survey, leather produced by the present invention is high with release liners intensity, peel strength 20N/m, 28 is reused under high temperature or wet environment
Secondary, crimping does not occur in paper or bad situation is glued on surface, and release is good, and manufactured leather goods surface gloss is good, and feel is smooth.
Example 3
The fresh blade of tobira is collected first, with clear water washing surface and naturally dry, its air-flow crushing is collected extra large
Paulownia leaf particles, in mass ratio 1:10, tobira leaf particles and mass fraction are mixed for 5% glutaraldehyde water solution stirring
Merge fixed leaf particles 24h；After the completion of to be fixed, filter and collect leaf particles, in mass ratio 1:5, by tobira blade
Particle is stirred with n-hexane and is placed in conical flask, the heating water bath 2h at 60 DEG C, after the completion for the treatment of heating water bath, filtering
And filtrate is collected, the rotary evaporated to dryness at 50 DEG C, it is prepared into tobira blade wax concentrate；Subsequent in mass ratio 1:3:5,
Diversiform-leaved poplar wood wood-pulp board, tobira blade wax concentrate and deionized water are stirred 15min, then with beater mashing
Reason to slurry concentration is concentrated into 10%, then handles 2h with fiberizer, and then ultrasonic disperse handles 15min under 300W, is prepared into
Modified wood pulp dispersed paste；The dispersed paste of above-mentioned preparation is placed in into handsheet in handsheet machine to handle, l Water Paper page is placed in hydraulic press
In, 30s is squeezed under 8MPa, is waited after the completion of squeezing, is placed at 105 DEG C and dries 5min, is prepared into and dries modified page, it is standby
With；Then count in parts by weight, weigh 50 parts of AKD sizing agents, 10 parts of sodium carboxymethylcelluloses, 5 parts of polyvinyl alcohol and 40 respectively
Part deionized water, which is stirred, to be placed in beaker, and ultrasonic disperse 15min, is prepared into coating fluid under 300W；Then will be above-mentioned
Dry modified page prepared by step is placed on coating machine, is coated processing with coating fluid to modified page, is controlled painting every time
Cloth thickness is 0.1mm, is often coated with once to be placed at 100 DEG C and dries 60s, after being coated with 3 times repeatedly, is placed on 125 DEG C
Lower dry 3min, then standing, which is cooled to room temperature, can be prepared into a kind of easily peelable leather release liners of coiling-resistant.
This example operation is easy, in use, dermatine paste resin raw material is applied to produced by the present invention release
Paper surface, then after drying, crosslinking, solidification at a temperature of 210 DEG C, then peeled away from release liners, produce dermatine.Through inspection
Survey, leather produced by the present invention is high with release liners intensity, peel strength 23N/m, 30 is reused under high temperature or wet environment
Secondary, crimping does not occur in paper or bad situation is glued on surface, and release is good, and manufactured leather goods surface gloss is good, and feel is smooth.
Claims (1)
1. a kind of preparation method of the easily peelable leather release liners of coiling-resistant, it is characterised in that specifically preparation process is：
（1）The fresh blade of tobira is collected, with clear water washing surface and naturally dry, its air-flow crushing is collected into obtain pittosporum tobira floral leaf
Piece particle, in mass ratio 1:10, tobira leaf particles and mass fraction are stirred and consolidated for 5% glutaraldehyde water solution
20~24h of fixed blade particle；
（2）After the completion of to be fixed, filter and collect leaf particles, in mass ratio 1:5, tobira leaf particles are stirred with n-hexane
Mix mixing to be placed in conical flask, 1~2h of heating water bath at 55~60 DEG C, after the completion for the treatment of heating water bath, filter and collect
Filtrate, the rotary evaporated to dryness at 45~50 DEG C, it is prepared into tobira blade wax concentrate；
（3）In mass ratio 1:3:5, diversiform-leaved poplar wood wood-pulp board, tobira blade wax concentrate and deionized water are stirred 10
~15min, 10% then is concentrated into beater mashing processing to slurry concentration, then 1~2h is handled with fiberizer, then exists
Ultrasonic disperse handles 10~15min under 200~300W, is prepared into modified wood pulp dispersed paste；
（4）The dispersed paste of above-mentioned preparation is placed in handsheet machine into handsheet to handle, l Water Paper page is placed in hydraulic press, 5~
25~30s is squeezed under 8MPa, is waited after the completion of squeezing, is placed at 100~105 DEG C and dries 3~5min, be prepared into dry modification
Page, it is standby；
（5）Count in parts by weight, weigh respectively 45~50 parts of AKD sizing agents, 5~10 parts of sodium carboxymethylcelluloses, 3~5 parts it is poly-
Vinyl alcohol and 35~40 parts of deionized waters are stirred and are placed in beaker, 10~15min of ultrasonic disperse under 200~300W,
It is prepared into coating fluid；
（6）By step（4）The modified page of drying of preparation is placed on coating machine, and place is coated with coating fluid to modified page
Reason, it is 0.1mm to control each coating thickness, is often coated with once to be placed at 95~100 DEG C and dries 45~60s, treats to apply repeatedly
After cloth 3 times, it is placed at 120~125 DEG C and dries 2~3min, then standing, which is cooled to room temperature, can be prepared into a kind of anti-roll
Bent easily peelable leather release liners.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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