CN110528305A - A kind of preparation method of the liquid crystal glass base feeding spaced papers of " seersucker " structure - Google Patents
A kind of preparation method of the liquid crystal glass base feeding spaced papers of " seersucker " structure Download PDFInfo
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- CN110528305A CN110528305A CN201910831669.8A CN201910831669A CN110528305A CN 110528305 A CN110528305 A CN 110528305A CN 201910831669 A CN201910831669 A CN 201910831669A CN 110528305 A CN110528305 A CN 110528305A
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D1/00—Methods of beating or refining; Beaters of the Hollander type
- D21D1/02—Methods of beating; Beaters of the Hollander type
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F5/00—Dryer section of machines for making continuous webs of paper
- D21F5/02—Drying on cylinders
-
- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/02—Chemical or chemomechanical or chemothermomechanical pulp
- D21H11/04—Kraft or sulfate pulp
-
- 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
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
- D21H11/18—Highly hydrated, swollen or fibrillatable fibres
-
- 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
- D21H17/14—Carboxylic acids; Derivatives thereof
-
- 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
- D21H19/00—Coated paper; Coating material
- D21H19/10—Coatings without pigments
- D21H19/14—Coatings without pigments applied in a form other than the aqueous solution defined in group D21H19/12
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Paper (AREA)
Abstract
The present invention relates to a kind of preparation methods of the liquid crystal glass base feeding spaced papers of " seersucker " structure, belong to paper technology.The paper, with copying, is beaten in such a way that fiber is slightly discongested by bleaching needle-point leaf pulp and bleached hardwood pulp, nano-fiber material is added in mixed slurry in a manner of starching interior addition, and is handled using light pressure, high temperature urgency drying mode.The present invention solves the problems, such as that the slurry high intensity of liquid crystal glass base feeding spaced papers, high-stiffness and high-air-permeability under low beating degree cannot be taken into account, it bulk with higher and is formed microcosmic smooth simultaneously, not very smooth " seersucker " structure of macroscopic view increases the air permeability and anti-mildew performance for a long time of liquid crystal glass base feeding spaced papers.
Description
Technical field
It is especially a kind of the present invention relates to a kind of preparation method of the liquid crystal glass base feeding spaced papers of " seersucker " structure
The high intensity of " seersucker " structure, high-stiffness, high-air-permeability liquid crystal glass base feeding spaced papers preparation method, belong to papermaking skill
Art field.
Background technique
Liquid-crystalline glasses feeding spaced papers rise emphatically in flat-panel monitor transportational process as the separating tissue between all kinds of liquid crystal displays
The protection and buffer action wanted.For liquid crystal display in prolonged transport and storage, liquid-crystalline glasses feeding spaced papers can be because of ambient humidity
Mildew phenomena occurs for the factors such as variation, and then corrodes liquid crystal glass base, makes expensive liquid crystal glass base damage.Therefore this kind of
Paper usually requires that air permeability with higher and smooth surface is fine and smooth, hair and powder dropping, dustless free from admixture, surface strength be not high.
The air permeability of liquid-crystalline glasses feeding spaced papers is high, and the air circulation between liquid crystal glass base is smooth, and mildew probability can reduce.Into 21 generation
Since discipline, the demand of all kinds of smart machines is developed in market toward frivolous convenient direction, promotes enterprise to glass base plane
Carry out process optimization and technological improvement, it was reported that the product of novel display technology and related industry accounts for the information industry gross output value
30% or more, LCD industry can keep 10% or so growth rate in 10 years in China's future.Demand to liquid crystal glass base feeding spaced papers
It is increasing.
Glass interval paper is used for the back segment make-up room of glass product every use, it can also be used to which glass substrate cutting is thinned
Afterwards, glass and glass dottle pin use, the one kind of liquid crystal glass base feeding spaced papers as glass interval paper, it is desirable that with higher
Manner, higher intensity, higher stiffness, dustless free from admixture, hair and powder dropping, surface exquisiteness cannot not scratch glass surface, and
Storage cannot go mouldy for a long time, and liquid crystal glass base feeding spaced papers used in China rely on import more at present, due to intensity, stiffness and
Air permeability is index conflicting in paper making process, and the liquid crystal glass base feeding spaced papers of domestic production can not be accomplished high-strength
The problems such as degree, high-stiffness and high-air-permeability are simultaneously deposited, and there are high production cost, and product quality is unstable.
Chinese patent literature CN 109137623A (application number 201811182722.8) discloses a kind of TFT-LCD substrate
Glass leading portion interval paper and its manufacturing method, belong to paper technology, it is with 3~4 kinds of softwood pulp compatible uses, wherein U.S.
The mass percentage content of Southern Pine is 45%-65%, Simao, Yunnan pine mass percentage content 10~25%, Canadian China fir
Set mass percentage content 10~25%, Brazilian eucalyptus pulp mass percentage content 0~15%, by above-mentioned composite fibre raw material with
The mode of free beating is to 19 ° of SR-21 ° of SR of the degree of beating, weight in wet base 14g-16g；1%-3% aluminum sulfate is added and adjusts pH value；It is added
1%-2% mould inhibitor；It is made using wet papermaking process in conjunction with various measures.The present invention does not use adhesive, but utilizes
The respective special performance of different sources softwood pulp, the quantification of 35~60g/m of product2, tensile strength is greater than 2.5KN/m, thick
Degree is greater than 2cm3/ g, 10~15L/m of air permeability2S, stiffness are greater than 12KN/m, and for ash less than 0.1%, methylene chloride extract is small
In 0.05%.The problems such as there are raw material complexity for the technical solution, at high cost, and product quality is unstable, and index of correlation can not reach
To the performance of similar external product.
Chinese patent literature CN106758482A (application number 201611267767.6) is disclosed between a kind of high-stiffness glass
Every paper and its manufacturing method, belong to paper technology, it is to be blended in bleached sulphate softwood pulp and GP slurry for fibrous raw material
Together, wherein the mass percentage content of GP slurry is 45%-55%, remaining is bleached sulphate softwood pulp；By above-mentioned mixing
Fibrous raw material circulation beating is to 19 ° of SR-21 ° of SR of the degree of beating, weight in wet base 14g-16g；It is successively de- through long mesh paper making machine drainage and formation, squeezing again
Water, secondary drying, press polish, batches high-stiffness glass interval paper is made top sizing.Although product stiffness made from the program and
Tightness is obviously improved, but is still unable to reach the performance of similar external product, and is unable to satisfy requirement at paper air permeability.
Xu Yongjian etc., in " research of liquid-crystalline glasses feeding spaced papers papermaking process " (volume 36 the 10th of " Chinese papermaking " 2017
Phase) in, it discloses and liquid crystal is prepared according to the proportion of 20:80 using the softwood pulp of 32 ° of SR of beating degree and the hardwood pulp of 22 ° of SR
Glass interval paper, while being added to debonding agent to improve into paper air permeability and realizing, but corresponding wet web strength and at paper tight
Degree is decreased obviously.
Summary of the invention
The present invention it is above-mentioned it is high-intensitive, high-stiffness and high-air-permeability are conflicting, cannot be considered in terms of aiming at the problem that, one kind is provided
The manufacturing method of easy to operate, moderate cost liquid crystal glass base feeding spaced papers, to obtain best in quality and high-intensitive, Gao Ting
The liquid crystal glass base feeding spaced papers of degree and high-air-permeability.
Technical solution of the present invention is as follows:
A kind of preparation method of the liquid crystal glass base feeding spaced papers of " seersucker " structure, steps are as follows:
(1) the primary softwood pulp of size degradation and primary hardwood pulp are respectively subjected to mashing processing, needle is made respectively
Leaf wood pulp material and leaf wood slurry；
(2) hardwood pulp of 50%~70% needlebush slurry and mass percent 30%~50% by mass percentage
Expect ingredient, be uniformly mixed, mixed slurry is made；
(3) nano-fiber material reinforcing agent, nano-fiber material reinforcing agent are added into mixed slurry made from step (2)
Additive amount be mixed slurry quality 0.3%~2%；
(4) wet web is subjected to press dewatering by the way of continuously gently pressing, then through drying, surface acidification, two
Secondary drying, press polish batch to get.
It is preferred according to the present invention, in the step (1) mashing processing carried out by the way of circulating reflux light knife discongest,
The tip-tap slurry processing suitably cut off.
Preferred according to the present invention, primary softwood pulp is chemical method or semichemical method or chemical machine in the step (1)
Bleaching needle-point leaf pulp made from tool method.
Preferred according to the present invention, primary hardwood pulp is chemical method or semichemical method or chemical machine in the step (1)
Bleached hardwood pulp made from tool method.
Preferred according to the present invention, primary softwood pulp beating degree is to 20 ° of SR~30 ° SR in the step (1)；It is primary wealthy
Leaf wood pulp beating degree is 18 ° of SR~25 ° SR；It is further preferred that primary softwood pulp beating degree is to 20 ° in the step (1)
SR~25 ° SR；Primary hardwood pulp beating degree is 20 ° of SR~25 ° SR.
Preferred according to the present invention, needlebush slurry mass percentage content is 60%~70% in the step (2), wealthy
Leaf wood pulp material mass percentage content is 30%~40%.
Preferred according to the present invention, the scale of nano-fiber material reinforcing agent is nanoscale, draw ratio in the step (3)
It is 30~100, specific surface area is 3000~8000.The nano-fiber material for meeting the requirement can expose more hydroxyls,
Hydrogenbond is formed with paper base fiber, intensity is more preferable.
Preferred according to the present invention, nano-fiber material reinforcing agent is biomass nanofiber in the step (3)；Into one
Step is preferred, and the biomass nano fiber includes nanofiber made from nanofiber made from Mechanical Method and/or chemical method；
It is furthermore preferred that the biomass nano fiber is needlebush nanofiber, leaf wood nanofiber and/or bacteria cellulose.
Above-mentioned biomass nano fiber is added in paper pulp fiber in the form of starching interior addition, utilizes the hydrogen bond of nanofiber
Enhance the binding force that characteristic improves paper pulp fiber, nanofiber can improve liquid-crystalline glasses base in the case where lower beating degree
The paper strength of plate feeding spaced papers, stiffness and air permeability；Nanofiber substitutes organic reinforcing agent simultaneously, reduces in paper paper-making process
The presence of organic colloid prevents glass interval paper from causing the pollution of liquid crystal glass base.
Preferred according to the present invention, press dewatering step makes the mass dryness fraction 30%~45% of paper in the step (4).
Preferred according to the present invention, press dewatering is that continous way is gently squeezed in the step (4).
Preferred according to the present invention, dry in the step (4) is high temperature urgency drying mode；It is further preferred that described
Dry dryer temperature is 100 DEG C~110 DEG C.
Preferred according to the present invention, surface acidification is to carry out acid using the method for top sizing in the step (4)
Change processing, acid assistant are citric acid, and mass percent concentration is 1%~6%, and the pH of paper is 4~6；It is further preferred that institute
The pH for stating paper is 5~6；
Above-mentioned redrying is to be dried using the method for conventional drying, behind cooling, the auxiliary that sets 3~4 cooling cylinders
Eliminate electrostatic.
Preferred according to the present invention, press polish is batched in the step (4), sets static elimination after paper carries out press polish processing
Device eliminates electrostatic, is then batched.
A kind of liquid crystal glass base feeding spaced papers of " seersucker " structure, physical and chemical index are as follows:
Quantitative 30~60g/m2, 1.3~1.8cm of bulk3/ g, 3~5KN/m of machine direction tensile strength, cross direction tensile strength 2
~5KN/m, longitudinal 20~50mN of stiffness, lateral stiffness 15~40,150~220um/Pas of air permeability.
Preferred according to the present invention, other physical and chemical indexes of the liquid crystal glass base feeding spaced papers are as follows: the whiteness
70%~90%, positive 15~40s of smoothness, reverse side 15~40s of smoothness, 5~20/m of dirt count2, moisture 4~8%.
Beneficial effect
1, the present invention is for the first time using needlebush slurry and leaf wood slurry as raw material, and adds nano-fiber material simultaneously, makes
The standby liquid crystal glass base feeding spaced papers with " seersucker " structure, through actually detected, three that product is made mutually are made
Index about ----intensity, stiffness and air permeability are obviously improved, thus properties of product are better than same kind of products at abroad；
2, after the present invention is with specific beating degree and ratio mixing needlebush slurry and leaf wood slurry, liquid crystal glass obtained
The parameters index of glass substrate feeding spaced papers is more balanced, and every necessary index of liquid crystal glass base feeding spaced papers is significantly better than
Same kind of products at abroad；
3, the present invention is dried using anxious for the first time during the preparation process, which can be improved into paper bulk and shape
At microcosmic smooth, not very smooth " seersucker " structure of macroscopic view significantly improves into paper air permeability, avoids liquid crystal glass base
Mildew phenomena；
4, the present invention during the preparation process, does not add any non-fibrous filler and organic chemistry auxiliary agent, more environmentally-friendly, symbol
Close current energy-saving and emission-reduction, environmental-friendly policy requirements.
Specific implementation method
Technical solution of the present invention is further elaborated below with reference to embodiment, but institute's protection scope of the present invention is not limited to
This.
Raw material sources
Bleached sulphate softwood pulp described in embodiment and bleached sulphate hardwood pulp are ordinary commercial products.
Nano-fiber material reinforcing agent described in embodiment is needlebush nano-cellulose, according to document
《Determination of nanocellulose fibril length by shear viscosity measurement》
The TEMPO oxycellulose method preparation recorded in (Tanaka etc., " Cellulose " in June, 2014).
Embodiment 1
A kind of preparation method of the liquid crystal glass base feeding spaced papers of " seersucker " structure, steps are as follows:
(1) it is beaten: two kinds of slurries of size degradation being respectively subjected to mashing processing, mashing mode uses the side of circulating reflux
Formula first carries out light knife and discongests, and carries out micro- mashing cut staple afterwards, wherein bleached sulphate softwood pulp beating degree to 20 ° of SR, drift
White sulfate hardwood pulp beating degree is 20 ° of SR, and needlebush slurry and leaf wood slurry are made respectively；
(2) with slurry: 70% needlebush slurry being uniformly mixed with 30% leaf wood slurry, mixed slurry is made；
(3) nano-fiber material adds: needlebush Nanowire is added after the mixed slurry that step (2) obtains is pumped into stock tank
Dimension element, additional amount are the 0.3% of mixed slurry quality；
(4) it squeezes: wet web being subjected to press dewatering in such a way that continous way is gently pressed, makes the mass dryness fraction content of paper
35%.
(5) anxious dry: the dewatered paper of step (4) to be subjected to anxious drying process, dryer temperature is 100 DEG C.
(6) it is surface-treated: the method for the top sizing of the paper after drying being subjected to acidification, acid assistant is lemon
Acid, concentration 3% make the pH 5.5 of paper.
(7) redrying: the paper after step (6) surface treatment is dried using the method for conventional drying, behind
If 4 cooling cylinders are cooling, auxiliary eliminates electrostatic.
(8) press polish is batched: being batched after the paper of step (7) after dry is carried out press polish processing, is set static elimination before batching
Device eliminates electrostatic, and the finished product liquid crystal glass base feeding spaced papers that moisture content is 6% are made.
Liquid crystal glass base feeding spaced papers physical index all data manufactured in the present embodiment is as follows:
Embodiment 2
A kind of preparation method of the liquid crystal glass base feeding spaced papers of " seersucker " structure, steps are as follows:
(1) it is beaten: two kinds of slurries of size degradation being respectively subjected to mashing processing, mashing mode uses the side of circulating reflux
Formula first carries out light knife and discongests, and carries out micro- mashing cut staple afterwards, wherein bleached sulphate softwood pulp beating degree to 25 ° of SR, drift
White sulfate hardwood pulp beating degree is 25 ° of SR, and needlebush slurry and leaf wood slurry are made respectively；
(2) with slurry: 60% needlebush slurry being uniformly mixed with 40% leaf wood slurry, mixed slurry is made；
(3) nano-fiber material adds: needlebush Nanowire is added after the mixed slurry that step (2) obtains is pumped into stock tank
Dimension element, additional amount are the 0.3% of mixed slurry quality；
(4) it squeezes: wet web being subjected to press dewatering in such a way that continous way is gently pressed, makes the mass dryness fraction content of paper
35%.
(5) anxious dry: the dewatered paper of step (4) to be subjected to anxious drying process, dryer temperature is 100 DEG C.
(6) it is surface-treated: the method for the top sizing of the paper after drying being subjected to acidification, acid assistant is lemon
Acid, concentration 3% make the pH 5.3 of paper.
(7) redrying: the paper after step (6) surface treatment is dried using the method for conventional drying, behind
If 4 cooling cylinders are cooling, auxiliary eliminates electrostatic.
(8) press polish is batched: being batched after the paper of step (7) after dry is carried out press polish processing, is set static elimination before batching
Device eliminates electrostatic, and the finished product liquid crystal glass base feeding spaced papers that moisture content is 6% are made.
Liquid crystal glass base feeding spaced papers physical index all data manufactured in the present embodiment is as follows:
Embodiment 3
A kind of preparation method of the liquid crystal glass base feeding spaced papers of " seersucker " structure, steps are as follows:
(1) it is beaten: two kinds of slurries of size degradation being respectively subjected to mashing processing, mashing mode uses the side of circulating reflux
Formula first carries out light knife and discongests, and carries out micro- mashing cut staple afterwards, wherein bleached sulphate softwood pulp beating degree to 25 ° of SR, drift
White sulfate hardwood pulp beating degree is 20 ° of SR, and needlebush slurry and leaf wood slurry are made respectively；
(2) with slurry: 60% needlebush slurry being uniformly mixed with 40% leaf wood slurry, mixed slurry is made；
(3) nano-fiber material adds: needlebush Nanowire is added after the mixed slurry that step (2) obtains is pumped into stock tank
Dimension element, additional amount are the 1.5% of mixed slurry quality；
(4) it squeezes: wet web being subjected to press dewatering in such a way that continous way is gently pressed, makes the mass dryness fraction content of paper
35%.
(5) anxious dry: the dewatered paper of step (4) to be subjected to anxious drying process, dryer temperature is 105 DEG C.
(6) it is surface-treated: the method for the top sizing of the paper after drying being subjected to acidification, acid assistant is lemon
Acid, concentration 3% make the pH 5.8 of paper.
(7) redrying: the paper after step (6) surface treatment is dried using the method for conventional drying, behind
If 4 cooling cylinders are cooling, auxiliary eliminates electrostatic.
(8) press polish is batched: being batched after the paper of step (7) after dry is carried out press polish processing, is set static elimination before batching
Device eliminates electrostatic, and the finished product liquid crystal glass base feeding spaced papers that moisture content is 6% are made.
Liquid crystal glass base feeding spaced papers physical index all data manufactured in the present embodiment is as follows:
Embodiment 4
A kind of preparation method of the liquid crystal glass base feeding spaced papers of " seersucker " structure, steps are as follows:
(1) it is beaten: two kinds of slurries of size degradation being respectively subjected to mashing processing, mashing mode uses the side of circulating reflux
Formula first carries out light knife and discongests, and carries out micro- mashing cut staple afterwards, wherein bleached sulphate softwood pulp beating degree to 30 ° of SR, drift
White sulfate hardwood pulp beating degree is 18 ° of SR, and needlebush slurry and leaf wood slurry are made respectively；
(2) with slurry: 50% needlebush slurry being uniformly mixed with 50% leaf wood slurry, mixed slurry is made；
(3) nano-fiber material adds: needlebush Nanowire is added after the mixed slurry that step (2) obtains is pumped into stock tank
Dimension element, additional amount are the 1.5% of mixed slurry quality；
(4) it squeezes: wet web being subjected to press dewatering in such a way that continous way is gently pressed, makes the mass dryness fraction content of paper
35%.
(5) anxious dry: the dewatered paper of step (4) to be subjected to anxious drying process, dryer temperature is 105 DEG C.
(6) it is surface-treated: the method for the top sizing of the paper after drying being subjected to acidification, acid assistant is lemon
Acid, concentration 3% make the pH 5.8 of paper.
(7) redrying: the paper after step (6) surface treatment is dried using the method for conventional drying, behind
If 4 cooling cylinders are cooling, auxiliary eliminates electrostatic.
(8) press polish is batched: being batched after the paper of step (7) after dry is carried out press polish processing, is set static elimination before batching
Device eliminates electrostatic, and the finished product liquid crystal glass base feeding spaced papers that moisture content is 6% are made.
Liquid crystal glass base feeding spaced papers physical index all data manufactured in the present embodiment is as follows:
Embodiment 5
A kind of preparation method of liquid crystal glass base feeding spaced papers, steps are as follows:
(1) it is beaten: two kinds of slurries of size degradation being respectively subjected to mashing processing, mashing mode uses the side of circulating reflux
Formula first carries out light knife and discongests, and carries out micro- mashing cut staple afterwards, wherein bleached sulphate softwood pulp beating degree to 32 ° of SR, drift
White sulfate hardwood pulp beating degree is 22 ° of SR, and needlebush slurry and leaf wood slurry are made respectively；
(2) with slurry: 20% needlebush slurry being uniformly mixed with 80% leaf wood slurry, mixed slurry is made；
(3) nano-fiber material adds: needlebush Nanowire is added after the mixed slurry that step (2) obtains is pumped into stock tank
Material is tieed up, additional amount is the 1.5% of mixed slurry quality；
(4) it squeezes: wet web being subjected to press dewatering in such a way that continous way is gently pressed, makes the mass dryness fraction content of paper
35%.
(5) anxious dry: the dewatered paper of step (4) to be subjected to anxious drying process, dryer temperature is 110 DEG C.
(6) it is surface-treated: the method for the top sizing of the paper after drying being subjected to acidification, acid assistant is lemon
Acid, concentration 3% make the pH 5.8 of paper.
(7) redrying: the paper after step (6) surface treatment is dried using the method for conventional drying, behind
If 4 cooling cylinders are cooling, auxiliary eliminates electrostatic.
(8) press polish is batched: being batched after the paper of step (7) after dry is carried out press polish processing, is set static elimination before batching
Device eliminates electrostatic, and the finished product liquid crystal glass base feeding spaced papers that moisture content is 6% are made.
The liquid crystal glass base feeding spaced papers physical index all data of this comparative example preparation is as follows:
Comparative example 1
A kind of preparation method of liquid crystal glass base feeding spaced papers, steps are as follows:
(1) it is beaten: two kinds of slurries of size degradation being respectively subjected to mashing processing, mashing mode uses the side of circulating reflux
Formula first carries out light knife and discongests, and carries out micro- mashing cut staple afterwards, wherein bleached sulphate softwood pulp beating degree to 25 ° of SR, drift
White sulfate hardwood pulp beating degree is 20 ° of SR, and needlebush slurry and leaf wood slurry are made respectively；
(2) with slurry: 60% needlebush slurry being uniformly mixed with 40% leaf wood slurry, mixed slurry is made；
(3) it squeezes: wet web being subjected to press dewatering in such a way that continous way is gently pressed, makes the mass dryness fraction content of paper
35%.
(4) anxious dry: the dewatered paper of step (3) to be subjected to anxious drying process, dryer temperature is 100 DEG C.
(5) it is surface-treated: the method for the top sizing of the paper after drying being subjected to acidification, acid assistant is lemon
Acid, concentration 3% make the pH 5.8 of paper.
(6) redrying: the paper after step (5) surface treatment is dried using the method for conventional drying, behind
If 4 cooling cylinders are cooling, auxiliary eliminates electrostatic.
(7) press polish is batched: being batched after the paper of step (6) after dry is carried out press polish processing, is set static elimination before batching
Device eliminates electrostatic, and the finished product liquid crystal glass base feeding spaced papers that moisture content is 6% are made.
The liquid crystal glass base feeding spaced papers physical index all data of this comparative example preparation is as follows:
Comparative example 2
A kind of preparation method of the liquid crystal glass base feeding spaced papers of " seersucker " structure, steps are as follows:
(1) it is beaten: two kinds of slurries of size degradation being respectively subjected to mashing processing, mashing mode uses the side of circulating reflux
Formula first carries out light knife and discongests, and carries out micro- mashing cut staple afterwards, wherein bleached sulphate softwood pulp beating degree to 25 ° of SR, drift
White sulfate hardwood pulp beating degree is 20 ° of SR, and needlebush slurry and leaf wood slurry are made respectively；
(2) with slurry: 60% needlebush slurry being uniformly mixed with 40% leaf wood slurry, mixed slurry is made；
(3) nano-fiber material adds: needlebush Nanowire is added after the mixed slurry that step (2) obtains is pumped into stock tank
Dimension element, additional amount are the 1.5% of mixed slurry quality；
(4) it squeezes: wet web being subjected to press dewatering in such a way that continous way is gently pressed, makes the mass dryness fraction content of paper
35%.
(5) primary drying: the dewatered paper of step (4) is subjected to normal drying processing, dryer temperature is 80 DEG C.
(6) it is surface-treated: the method for the top sizing of the paper after drying being subjected to acidification, acid assistant is lemon
Acid, concentration 3% make the pH 5.8 of paper.
(7) redrying: the paper after step (6) surface treatment is dried using the method for conventional drying, behind
If 4 cooling cylinders are cooling, auxiliary eliminates electrostatic.
(8) press polish is batched: being batched after the paper of step (7) after dry is carried out press polish processing, is set static elimination before batching
Device eliminates electrostatic, and the finished product liquid crystal glass base feeding spaced papers that moisture content is 6% are made.
Liquid crystal glass base feeding spaced papers physical index all data manufactured in the present embodiment is as follows:
Interpretation of result
By embodiment 1-5 it is found that with softwood pulp and hardwood pulp beating degree raising, made liquid-crystalline glasses base
The tensile strength of plate feeding spaced papers is risen, but air permeability and stiffness decline.With the increasing of needlebush nano-cellulose dosage
Add, the tensile strength and stiffness of made liquid crystal glass base feeding spaced papers rise obviously, while air permeability is also risen；
By embodiment 3 and embodiment 5 it is found that the increase of leaf wood proportion dosage, made liquid crystal glass base interval
Although the stiffness of paper is risen, intensity and air permeability suppression ratio are more serious；
By embodiment 2 and comparative example 1 it is found that not adding the liquid crystal glass base feeding spaced papers of needlebush nano-cellulose
Air permeability, tensile strength, stiffness are all lower.
By embodiment 3 and comparative example 2 it is found that without too urgent drying process, the anti-tensile of liquid crystal glass base feeding spaced papers is strong
Degree and stiffness vary less, but decline at the bulk of paper and air permeability obvious.Air permeability is low, will cause liquid crystal glass base
Mildew phenomena occurs.Paper bulk can be improved into through anxious drying process and form microcosmic smooth, the not very smooth " bubble of macroscopic view
Seersucker " structure.
Comprehensive analysis is it is found that technical solution of the present invention by the addition of nano-fiber material, while also passing through mashing
It is strong that the modes such as degree, softwood pulp and hardwood pulp proportion, anxious drying solve the air permeability of liquid crystal glass base feeding spaced papers, anti-tensile
The problem of degree, stiffness cannot be taken into account, further balanced These parameters.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by the limit of embodiment
System, other any changes made without departing from the spirit and principles of the present invention, modification, combination, substitution, simplification should be
Equivalence replacement mode, is included within the scope of the present invention.
Claims (10)
1. a kind of preparation method of the liquid crystal glass base feeding spaced papers of " seersucker " structure, steps are as follows:
(1) the primary softwood pulp of size degradation and primary hardwood pulp are respectively subjected to mashing processing, needlebush is made respectively
Slurry and leaf wood slurry；
(2) 50%~70% needlebush slurry is matched with the leaf wood slurry of mass percent 30%~50% by mass percentage
Material is uniformly mixed, and mixed slurry is made；
(3) nano-fiber material reinforcing agent is added into mixed slurry made from step (2), nano-fiber material reinforcing agent adds
Dosage is the 0.3%~2% of mixed slurry quality；
(4) wet web is subjected to press dewatering by the way of continuously gently pressing, then through drying, surface acidification, secondary dry
Dry, press polish batch to get.
2. preparation method as described in claim 1, which is characterized in that mashing processing uses circulating reflux in the step (1)
Mode carry out light knife discongest, the processing of the tip-tap slurry that suitably cuts off；
Preferably, primary softwood pulp is chemical method or semichemical method or chemical mechanical pulping bleaching obtained in the step (1)
Softwood pulp；
Preferably, primary hardwood pulp is chemical method or semichemical method or chemical mechanical pulping bleaching obtained in the step (1)
Hardwood pulp.
3. preparation method as described in claim 1, which is characterized in that primary softwood pulp beating degree is extremely in the step (1)
20 ° of SR~30 ° SR；Primary hardwood pulp beating degree is 18 ° of SR~25 ° SR；
It is further preferred that primary softwood pulp beating degree is to 20 ° of SR~25 ° SR in the step (1)；Primary hardwood pulp is beaten
The degree of beating is 20 ° of SR~25 ° SR.
4. preparation method as described in claim 1, which is characterized in that needlebush slurry mass percent in the step (2)
Content is preferably 60%~70%, and leaf wood slurry mass percentage content is 30%~40%.
5. preparation method as described in claim 1, which is characterized in that nano-fiber material reinforcing agent in the step (3)
Scale is nanoscale, and draw ratio is 30~100, and specific surface area is 3000~8000；
Preferably, nano-fiber material reinforcing agent is biomass nanofiber in the step (3)；It is further preferred that described
Biomass nano fiber includes nanofiber made from nanofiber made from Mechanical Method and/or chemical method；It is furthermore preferred that described
Biomass nano fiber is needlebush nanofiber, leaf wood nanofiber and/or bacteria cellulose.
6. preparation method as described in claim 1, which is characterized in that press dewatering step makes paper in the step (4)
Mass dryness fraction is 30%~45%；
Preferably, press dewatering is that continous way is gently squeezed in the step (4).
7. preparation method as described in claim 1, which is characterized in that dry in the step (4) is high temperature urgency drying mode；
It is further preferred that the dryer temperature of the drying is 100 DEG C~110 DEG C.
8. preparation method as described in claim 1, which is characterized in that surface acidification is using table in the step (4)
The method of face sizing carries out acidification, and acid assistant is citric acid, and mass percent concentration is 1%~6%, and the pH of paper is 4
~6；It is further preferred that the pH of the paper is 5~6；
Preferably, press polish is batched in the step (4), paper carry out press polish processing after set Xelminator further eliminate it is quiet
Then electricity is batched.
9. a kind of liquid crystal glass base feeding spaced papers of " seersucker " structure, physical and chemical index are as follows:
Quantitative 30~60g/m2, 1.3~1.8cm of bulk3/ g, 3~5KN/m of machine direction tensile strength, cross direction tensile strength 2~
5KN/m, longitudinal 20~50mN of stiffness, lateral stiffness 15~40,150~220um/Pas of air permeability.
10. liquid crystal glass base feeding spaced papers as claimed in claim 9, which is characterized in that the liquid crystal glass base feeding spaced papers
Other physical and chemical indexes it is as follows: the whiteness 70%~90%, positive 15~40s of smoothness, reverse side 15~40s of smoothness, dirt
Angstrom degree 5~20/m2, moisture 4~8%.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593453A (en) * | 2020-12-10 | 2021-04-02 | 牡丹江恒丰纸业股份有限公司 | Method for manufacturing liquid crystal substrate protection paper |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924189A (en) * | 2006-09-14 | 2007-03-07 | 广西大学 | Method of producing base paper for foodstuff packaging from high proportion bagasse pulp |
| JP2010013753A (en) * | 2008-07-02 | 2010-01-21 | Maruwa:Kk | Water-repellent, highly humidity-conditioning japanese paper sheet material and method for producing the same |
| CN103603232A (en) * | 2013-11-14 | 2014-02-26 | 苏州惠通新型材料科技有限公司 | Glass backing paper production process |
| CN105926367A (en) * | 2016-05-16 | 2016-09-07 | 河南银鸽实业投资股份有限公司 | Mildew-proof and anti-bacterium liquid crystal electronic glass partition paper and production technology thereof |
| CN106758482A (en) * | 2016-12-31 | 2017-05-31 | 浙江华邦特种纸业有限公司 | A kind of high-stiffness glass interval paper and its manufacture method |
| CN107083721A (en) * | 2017-06-27 | 2017-08-22 | 陕西科技大学 | A kind of papermaking process of liquid-crystalline glasses feeding spaced papers |
| CN108589414A (en) * | 2018-03-12 | 2018-09-28 | 浙江凯丰特种纸业有限公司 | A kind of preparation process of TFT glass interval papers |
| CN110067158A (en) * | 2019-05-22 | 2019-07-30 | 济南圣泉集团股份有限公司 | A kind of paper and its preparation method and application |
-
2019
- 2019-09-04 CN CN201910831669.8A patent/CN110528305B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924189A (en) * | 2006-09-14 | 2007-03-07 | 广西大学 | Method of producing base paper for foodstuff packaging from high proportion bagasse pulp |
| JP2010013753A (en) * | 2008-07-02 | 2010-01-21 | Maruwa:Kk | Water-repellent, highly humidity-conditioning japanese paper sheet material and method for producing the same |
| CN103603232A (en) * | 2013-11-14 | 2014-02-26 | 苏州惠通新型材料科技有限公司 | Glass backing paper production process |
| CN105926367A (en) * | 2016-05-16 | 2016-09-07 | 河南银鸽实业投资股份有限公司 | Mildew-proof and anti-bacterium liquid crystal electronic glass partition paper and production technology thereof |
| CN105926367B (en) * | 2016-05-16 | 2018-05-01 | 河南银鸽实业投资股份有限公司 | A kind of fungus-resistant liquid crystal electron glass interval paper and its production technology |
| CN106758482A (en) * | 2016-12-31 | 2017-05-31 | 浙江华邦特种纸业有限公司 | A kind of high-stiffness glass interval paper and its manufacture method |
| CN107083721A (en) * | 2017-06-27 | 2017-08-22 | 陕西科技大学 | A kind of papermaking process of liquid-crystalline glasses feeding spaced papers |
| CN108589414A (en) * | 2018-03-12 | 2018-09-28 | 浙江凯丰特种纸业有限公司 | A kind of preparation process of TFT glass interval papers |
| CN110067158A (en) * | 2019-05-22 | 2019-07-30 | 济南圣泉集团股份有限公司 | A kind of paper and its preparation method and application |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112593453A (en) * | 2020-12-10 | 2021-04-02 | 牡丹江恒丰纸业股份有限公司 | Method for manufacturing liquid crystal substrate protection paper |
| CN112593453B (en) * | 2020-12-10 | 2022-11-04 | 牡丹江恒丰纸业股份有限公司 | Method for manufacturing liquid crystal substrate protection paper |
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