CN108914704A - A kind of production method of temperature-sensitive body paper - Google Patents
A kind of production method of temperature-sensitive body paper Download PDFInfo
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- CN108914704A CN108914704A CN201810866839.1A CN201810866839A CN108914704A CN 108914704 A CN108914704 A CN 108914704A CN 201810866839 A CN201810866839 A CN 201810866839A CN 108914704 A CN108914704 A CN 108914704A
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- temperature
- body paper
- sensitive body
- pet fiber
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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
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- 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
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Abstract
The invention discloses a kind of production method of temperature-sensitive body paper, first preparation slurry, the slurry is the mixture of linear structure PET fiber, T-type PET fiber and northern wood pulp cellulose；Secondly two parts after pulp dilution, purification, screening, will be divided into two slurry pipelines, flowed into the same head box by two slurry pipelines, then carry out wet web forming；Wet web is finally drying to obtain temperature-sensitive body paper.The present invention has been obviously improved domestic temperature-sensitive print paper product quality, improves its printing effect and durable number.
Description
Technical field
The invention belongs to speciality paper fields, and in particular to a kind of temperature-sensitive body paper production method for computer all-in-one machine.
Background technique
Temperature-sensitive print paper (text printes and distribute industry and is also known as thermal stencil), is generally combined by body paper and polyester film.Body paper is main
As the backing material of heat-shrinkable resin film, it is necessary to have certain stiffness and strength, to ensure on temperature-sensitive print paper after machine
Planarization when being printed；Barrier material of the film as ink, generally PET material are made, and have extremely strong stretch by force
Degree, fusing point at 255~260 DEG C, it is compound after film thickness be generally less than 5 μm.Support construction and ink as temperature-sensitive print paper
Support structures, the structure and performance of body paper have significant impact to the performance of temperature-sensitive print paper.Body paper quantitatively be generally 10~
12g/m2, manufacture paper with pulp frequently with plant fiber and synthetic fibers.It is general to pass through coating third meanwhile in order to improve body paper intensity
Olefin(e) acid resinae reinforcing agent is convenient for improve the intensity and wet strength of body paper and film carries out multiple working.
In the 1990s, the countries such as Japan, Germany begin to study and produce sensible heat hole millboard and porous body paper with thin
Page paper, body paper mostly use the leaves fibers such as abaca, Ecuador fiber crops, pineapple fibre, New Zealand flax, flax, jute, taro
The bast fibers such as fiber crops, mestha, after mixing with PET synthetic fibers, the paper after oblique net paper machine wet process copy paper, drying applies outside machine
Cloth acrylic resin is enhanced, coating weight about 1-1.5g/m2.China also develops similar product at present and puts goods on the market, so
And body paper intensity it is low with porosity is small results in final temperature-sensitive print paper, intensity is lower compared with same kind of products at abroad and printability
Number is less.In order to solve not brought enough the product quality problem of raw material stability, while improving domestic temperature-sensitive body paper
Intensity and porosity, CN 201210292944.1 change temperature-sensitive body paper fibre furnish, use the double groups of LPET/PET low melting point
Part polyester superbhort fiber, PET polyester superbhort fiber, viscose rayon, northern wood pulp etc. are matched under the dispersion of polyacrylamide amine dispersant
Temperature-sensitive body paper is copied, produces temperature-sensitive body paper after cutting, acrylic resins of painting.The bi-component polyester of skin-core structure is super
The use of staple fiber improves body paper performance, has been obviously improved the performance of temperature-sensitive print paper.
However, the bi-component polyester superbhort fiber of this skin-core structure is expensive, it is unfavorable for the cost of temperature-sensitive body paper
It reduces；Meanwhile in order to ensure that interfibrous effective combination, the use of this bi-component polyester superbhort fiber need to keep paper dry
Dry temperature reaches the melting temperature of bi-component polyester superbhort fiber outer layer copolymer, and fiber hot melt brings the drop of fibre diameter
It is low, reduce the thickness of paper, is unfavorable for improving paper porosity；More importantly the melting of fibrous outer brings paper
It opens and drying cylinder and the viscous of dry net is sticked, take place frequently disconnected paper, to keep production efficiency lower.Existing covalent bond between fiber after bonding
Also the difficulty that broken recycles is brought.
Summary of the invention
The poor status of deficiency and body paper performance for temperature-sensitive body paper production process, the present invention provide a kind of temperature-sensitive version
The production method of body paper improves its printing effect and durable number to be obviously improved domestic temperature-sensitive print paper product quality.
In order to achieve the above objectives, the present invention adopts the following technical scheme that：
A kind of production method of temperature-sensitive body paper, includes the following steps：
Step 1：Prepare slurry, the slurry is the mixed of linear structure PET fiber, T-type PET fiber and northern wood pulp cellulose
Close object；
Step 2：After pulp dilution, purification, screening, it is divided into two parts into two slurry pipelines, by two slurry pipes
Road flows into the same head box, then carries out wet web forming；
Step 3：Wet web is drying to obtain temperature-sensitive body paper.
Further, the absolute dry mass ratio of linear structure PET fiber and T-type PET fiber is (7-9) in step 1:(3-
1), the linear structure PET fiber and T-type PET fiber form hybrid PET fiber, and hybrid PET fiber and northern wood pulp cellulose
Absolute dry mass ratio is (6-7)：(4-3).
Further, the beating degree of linear structure PET fiber and T-type PET fiber controls as 7-10 ° of SR in step 1；
Northern 42-47 ° of SR of wooden oar beating degree.
Further, in step 2 in two slurry pipelines：The volume ratio of slurry is 1:(0.8-1.2), the flowing of slurry
Speed ratio is 1：(1.01-1.03).
Further, wet web forming is carried out using slope screen former in step 2, and inclined wire inclination angle is 10-20 °.
Further, drying process is specially in step 3：Wet web is dried in such a way that hot wind penetrates first,
Then surface finish is carried out using the first drying cylinder, reinforcement then is glued to the paper after surface finish, then passes through suspension
Formula oven drying is finally further dried using the second drying cylinder and surface finish is to get temperature-sensitive body paper.
Further, hot blast temperature is 80-110 DEG C in hot wind impingement drying, and wind speed 400-800L/min is penetrated through hot wind
Paper Moisture mass fraction after drying is 5%-20%.
Further, the first surface temperature of drier is 80-100 DEG C.
Further, floated oven drying temperature is 130-200 DEG C, wind speed 150-400L/min.
Further, the second surface temperature of drier is 80-100 DEG C.
Compared with prior art, the invention has the following beneficial technical effects：
The present invention realizes the online of slurry using double slurry pipelines, utilizes sprayed fluid combination interface in two channels
Friction rubbing and diffusion change the distribution of fiber in aqueous solution, deposit after shaping few fibers with paper plane
In certain arrangement angles, improve into paper bulk；In addition the present invention uses T-type PET fiber, shapes dehydration by wet end drainage and takes out
Suction has few fibers in a manner of being approximately perpendicular to paper plane, and the intersection of reinforcing fiber is built, fine in enhancing paper
While tieing up network structure, regulate and control paper internal pore structure, improve the distribution of paper ink absorption ability and adsorbed ink,
By above-mentioned technological means, significantly improves temperature-sensitive body paper intensity and effectively promote its prepared temperature-sensitive print paper printability number.
Further, the present invention is utilized hot wind impingement drying (TAD) by the cylinder dried mode of the conventional l Water Paper page of change
L Water Paper page is dried, with conventional cylinder dried process l Water Paper page full width by fabric tension compared with, TAD drying only make
Part wet web is effectively reduced influence of the drying with pressure to paper sheet thickness, further increases paper porosity by fabric tension.
Further, the present invention is adjusted by the wire-dividing broom purification degree of control plant fiber in the case where porosity is constant
The size of paper internal holes is controlled, realizes that printing process paper absorbs the distribution control of ink.
Specific embodiment
Embodiments of the present invention are described in further detail below：
1, slurry prepares
(1) by linear structure PET fiber, T-type PET fiber according to mass ratio (7-9):(3-1) ratio mixing discongest or
Spare after slight mashing to 7-10 ° of SR of beating degree, northern wooden oar is beaten to 42-47 ° of SR of beating degree, and weight in wet base is that 8-10g is spare；Its
In, linear structure PET fiber refers to that the PET fiber (0.2-1.5Dtex × 5mm) of straight-line segment form, T-type PET fiber refer to
As English alphabet T form PET fiber (length ratio of three line segments of T-type structure be 1:1:1, and the ruler of three line segments
Very little is 0.2-1.5Dtex × 5mm).
(2) the wooden wood pulp of hybrid PET fiber and the north 30%-40% that mass fraction is 60%-70% is carried out in mud pit
It mixes, it is spare to enter machine chest after addition dispersing agent.
2, paper stock streaming and wet web forming
(1) machine chest slurry removes heavy seeds by desander after fan pump dilutes, then pressure is utilized after secondary dilution
Power, which is weeded out, to be purified the slurry of completion except coarse impurities and respectively enters binary channels head box using two pipelines；Control two pipelines
Slurry volume ratio is 1:(0.8-1.2), flowing velocity ratio are 1：(1.01-1.03).
(2) binary channels headbox stock mixes after crossing drift piece, the drainage and formation on inclined wire, controls inclined wire inclination angle 10-
20°。
3, wet web dry forming
(1) wet web is net loaded rear into hot-air through type cylinder dried using doing, and controls heated-air drying temperature 80-110
DEG C, wind speed 400-800L/min, drying to moisture content is 10%-20%；
(2) it is that 80-100 DEG C of drying cylinder is further dried that page, which enters temperature, after heated-air drying, realizes surface finish；
(3) after surface finish page enters sizing applicator gluing reinforcement, floated oven drying, floated oven drying are sent into
130-200 DEG C of temperature, wind speed 150-400L/min；
(4) page enters the drying cylinder that temperature is 80-100 DEG C and is further dried after suspension is dry, rolls up after realizing surface finish
Bent back-up is cut.
Below with reference to embodiment, the invention will be described in further detail：
Embodiment 1
(1) by linear structure PET fiber, T-type PET fiber according to mass ratio 9:1 ratio mixing is discongested to 7 ° of beating degree
SR is spare, and northern wooden oar is beaten to 42 ° of SR of beating degree, and weight in wet base is that 10g is spare；
(2) 70% hybrid PET fiber and the 30% wooden wood pulp in north are mixed in mud pit, be added after dispersing agent enter at
Stock tank is spare.
2, paper stock streaming and wet web forming
(1) machine chest slurry removes heavy seeds by desander after fan pump dilutes, then pressure is utilized after secondary dilution
Power, which is weeded out, to be purified the slurry of completion except coarse impurities and respectively enters binary channels head box using two pipelines；Control two pipelines
Slurry volume ratio is 1:0.8, flowing velocity ratio is 1：1.01.
(2) binary channels headbox stock mixes after crossing drift piece, the drainage and formation on inclined wire, controls 10 ° of inclined wire inclination angle.
3, wet web dry forming
(1) wet web using do it is net loaded after enter hot-air through type cylinder dried, control 110 DEG C of heated-air drying temperature,
Wind speed 400L/min, drying to moisture content are 10%；
(2) it is that 100 DEG C of drying cylinder is further dried that page, which enters temperature, after heated-air drying, realizes surface finish；
(3) after surface finish page enters sizing applicator gluing reinforcement, floated oven drying, floated oven drying are sent into
170 DEG C of temperature, wind speed 260L/min；
(4) page enters the drying cylinder that temperature is 100 DEG C and is further dried after suspension is dry, crimps after realization surface finish standby
Cutting.
Embodiment 2
1, slurry prepares
(1) by linear structure PET fiber, T-type PET fiber according to mass ratio 8:2 ratio is mixed with beating to 10 ° of beating degree
SR is spare, and northern wooden oar is beaten to 47 ° of SR of beating degree, and weight in wet base is that 8g is spare；
(2) 65% hybrid PET fiber and the 35% wooden wood pulp in north are mixed in mud pit, be added after dispersing agent enter at
Stock tank is spare.
2, paper stock streaming and wet web forming
(1) machine chest slurry removes heavy seeds by desander after fan pump dilutes, then pressure is utilized after secondary dilution
Power, which is weeded out, to be purified the slurry of completion except coarse impurities and respectively enters binary channels head box using two pipelines；Control two pipelines
Slurry volume ratio is 1:1.2, flowing velocity ratio is 1：1.03.
(2) binary channels headbox stock mixes after crossing drift piece, the drainage and formation on inclined wire, controls 17 ° of inclined wire inclination angle.
3, wet web dry forming
(1) wet web is net loaded rear into hot-air through type cylinder dried using doing, and controls 80 DEG C of heated-air drying temperature, wind
Fast 800L/min, drying to moisture content are 5%；
(2) it is that 80 DEG C of drying cylinder is further dried that page, which enters temperature, after heated-air drying, realizes surface finish；
(3) after surface finish page enters sizing applicator gluing reinforcement, floated oven drying, floated oven drying are sent into
150 DEG C of temperature, wind speed 350L/min；
(4) page enters the drying cylinder that temperature is 80 DEG C and is further dried after suspension is dry, crimps after realization surface finish standby
Cutting.
Embodiment 3
1, slurry prepares
(1) by linear structure PET fiber, T-type PET fiber according to mass ratio 7:3 ratio mixing is discongested to 8 ° of beating degree
SR is spare, and northern wooden oar is beaten to 45 ° of SR of beating degree, and weight in wet base is that 8.8g is spare；
(2) 60% hybrid PET fiber and the 40% wooden wood pulp in north are mixed in mud pit, be added after dispersing agent enter at
Stock tank is spare.
2, paper stock streaming and wet web forming
(1) machine chest slurry removes heavy seeds by desander after fan pump dilutes, then pressure is utilized after secondary dilution
Power, which is weeded out, to be purified the slurry of completion except coarse impurities and respectively enters binary channels head box using two pipelines；Control two pipelines
Slurry volume ratio is 1:1, flowing velocity ratio is 1：1.03.
(2) binary channels headbox stock mixes after crossing drift piece, the drainage and formation on inclined wire, controls 20 ° of inclined wire inclination angle.
3, wet web dry forming
(1) wet web is net loaded rear into hot-air through type cylinder dried using doing, and controls 85 DEG C of heated-air drying temperature, wind
Fast 550L/min, drying to moisture content are 20%；
(2) it is that 95 DEG C of drying cylinder is further dried that page, which enters temperature, after heated-air drying, realizes surface finish；
(3) after surface finish page enters sizing applicator gluing reinforcement, floated oven drying, floated oven drying are sent into
130 DEG C of temperature, wind speed 400L/min；
(4) page enters the drying cylinder that temperature is 95 DEG C and is further dried after suspension is dry, crimps after realization surface finish standby
Cutting.
Embodiment 4
1, slurry prepares
(1) by linear structure PET fiber, T-type PET fiber according to mass ratio 8.5:1.5 ratio mixing is discongested to mashing
It is spare to spend 9 ° of SR, northern wooden oar is beaten to 46 ° of SR of beating degree, and weight in wet base is that 9.7g is spare；
(2) 65% hybrid PET fiber and the 35% wooden wood pulp in north are mixed in mud pit, be added after dispersing agent enter at
Stock tank is spare.
2, paper stock streaming and wet web forming
(1) machine chest slurry removes heavy seeds by desander after fan pump dilutes, then pressure is utilized after secondary dilution
Power, which is weeded out, to be purified the slurry of completion except coarse impurities and respectively enters binary channels head box using two pipelines；Control two pipelines
Slurry volume ratio is 1:1.1, flowing velocity ratio is 1：1.02.
(2) binary channels headbox stock mixes after crossing drift piece, the drainage and formation on inclined wire, controls 19 ° of inclined wire inclination angle.
3, wet web dry forming
(1) wet web is net loaded rear into hot-air through type drying cylinder using doing, and controls 97 DEG C of heated-air drying temperature, wind speed
520L/min, drying to moisture content are 12%；
(2) page is further dried into drying cylinder at a temperature of 90 °C after heated-air drying, realizes surface finish；
(3) after surface finish page enters sizing applicator gluing reinforcement, floated oven drying, floated oven drying are sent into
200 DEG C of temperature, wind speed 150L/min；
(4) page enters drying cylinder at a temperature of 90 °C and is further dried after suspension is dry, crimps after realization surface finish standby
Cutting.
The key technical indexes of products obtained therefrom of the embodiment of the present invention is as shown in table 1：
1 products obtained therefrom technical indicator of the embodiment of the present invention of table
Claims (10)
1. a kind of production method of temperature-sensitive body paper, which is characterized in that include the following steps：
Step 1：Prepare slurry, the slurry is the mixture of linear structure PET fiber, T-type PET fiber and northern wood pulp cellulose；
Step 2：After pulp dilution, purification, screening, it is divided into two parts into two slurry pipelines, by two slurry pipeline streams
Enter in the same head box, then carries out wet web forming；
Step 3：Wet web is drying to obtain temperature-sensitive body paper.
2. a kind of production method of temperature-sensitive body paper according to claim 1, which is characterized in that linear structure in step 1
The absolute dry mass ratio of PET fiber and T-type PET fiber is (7-9):(3-1), the linear structure PET fiber and T-type PET fiber
Hybrid PET fiber is formed, and the absolute dry mass ratio of hybrid PET fiber and northern wood pulp cellulose is (6-7)：(4-3).
3. a kind of production method of temperature-sensitive body paper according to claim 1, which is characterized in that linear structure in step 1
The beating degree of PET fiber and T-type PET fiber controls as 7-10 ° of SR；Northern 42-47 ° of SR of wooden oar beating degree.
4. a kind of production method of temperature-sensitive body paper according to claim 1, which is characterized in that two slurries in step 2
In pipeline：The volume ratio of slurry is 1:(0.8-1.2), the flowing velocity ratio of slurry are 1：(1.01-1.03).
5. a kind of production method of temperature-sensitive body paper according to claim 1, which is characterized in that utilize inclined wire in step 2
Former carries out wet web forming, and inclined wire inclination angle is 10-20 °.
6. a kind of production method of temperature-sensitive body paper according to claim 1, which is characterized in that drying process in step 3
Specially：Wet web is dried in such a way that hot wind penetrates first, then carries out surface finish using the first drying cylinder, then
Reinforcement is glued to the paper after surface finish, then by floated oven drying, finally using the second cylinder dried and
Surface finish is to get temperature-sensitive body paper.
7. a kind of production method of temperature-sensitive body paper according to claim 6, which is characterized in that hot in hot wind impingement drying
Air temperature is 80-110 DEG C, wind speed 400-800L/min, and the Paper Moisture mass fraction after hot wind impingement drying is 5%-
20%.
8. a kind of production method of temperature-sensitive body paper according to claim 6, which is characterized in that the first surface temperature of drier
It is 80-100 DEG C.
9. a kind of production method of temperature-sensitive body paper according to claim 6, which is characterized in that floated oven drying temperature
Degree is 130-200 DEG C, wind speed 150-400L/min.
10. a kind of production method of temperature-sensitive body paper according to claim 6, which is characterized in that the second dryer surface temperature
Degree is 80-100 DEG C.
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| CN201810866839.1A CN108914704B (en) | 2018-08-01 | 2018-08-01 | Production method of heat-sensitive plate base paper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810866839.1A CN108914704B (en) | 2018-08-01 | 2018-08-01 | Production method of heat-sensitive plate base paper |
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| CN108914704B CN108914704B (en) | 2020-10-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114875706A (en) * | 2022-04-02 | 2022-08-09 | 浙江凯恩新材料有限公司 | Raw paper of high-performance all-in-one machine thermosensitive version paper, production process and thermosensitive version paper prepared by production process |
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| CN107326536A (en) * | 2016-11-22 | 2017-11-07 | 上海缔荣纺织品有限公司 | Special-shaped polyester fiber and the composite spunlaced wet tissue cloth of wood pulp cellulose and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119006A (en) * | 1993-11-17 | 1996-03-20 | 东丽株式会社 | Thermal stencil paper for mimeograph |
| CN102787531A (en) * | 2012-08-17 | 2012-11-21 | 浙江华凯纸业有限公司 | Raw paper of heat-sensitive board paper of all-in-one machine |
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| CN114875706A (en) * | 2022-04-02 | 2022-08-09 | 浙江凯恩新材料有限公司 | Raw paper of high-performance all-in-one machine thermosensitive version paper, production process and thermosensitive version paper prepared by production process |
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