CN104499359A - Production method of dipping crepe paper - Google Patents
Production method of dipping crepe paper Download PDFInfo
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- CN104499359A CN104499359A CN201410684184.8A CN201410684184A CN104499359A CN 104499359 A CN104499359 A CN 104499359A CN 201410684184 A CN201410684184 A CN 201410684184A CN 104499359 A CN104499359 A CN 104499359A
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Abstract
The invention discloses a production method of dipping crepe paper. According to the production method, in a papermaking step, plant fibrous raw materials are subjected to boiling so as to obtain paper pulp; after boiling, an oxidation system is added into the paper pulp for oxidation modification of the fiber raw materials, wherein the oxidation system is one selected from TEMPO catalytic oxidation system, a periodate, a nitrite, sodium chlorite, and sodium hypochlorite. The oxidation system is added after boiling for oxidation of the fiber raw materials, and paper pulp rich in aldehyde groups, and carboxyl functional groups is obtained, wherein aldehyde groups are beneficial for increasing of paper wet strength, and carboxyl groups are beneficial for reducing beating energy consumption, and are beneficial for increasing of paper strength. And in addition, it is more convenient to prepare cellulose ether and cellulose ester derivatives from the paper pulp rich in functional groups.
Description
Technical field
The present invention relates to the processing technology of the papermaking of a kind of U.S. line paper and U.S. line paper dipping, specifically a kind of production technology of immersion crepe paper.
Background technology
U.S. line paper is a kind of high-tech decoration, spraying paper using (because of the property of its purposes, also known as a point ribbon paper), is widely used in interior decoration, the spraying paint and the spraying of high-grade limousine of household electrical appliance.Its point of chromatic effect boundary line is clear, bright and clear, has again camber line art effect concurrently, gives decoration, spraying industry brings once new technological revolution, life the sector being shone make new advances.The U.S. line paper of current each manufacturers produce and immersion crepe paper also have many deficiencies, be mainly reflected in thickness height then pliability and intensity difference, pliability and intensity well then thickness is low, can not meet that market pliability is good, the requirement of high strength, high thickness.
Cellulose is the linear polymeric formed by Isosorbide-5-Nitrae glycosidic bond by β-D glucopyranose, wherein C6 has primary hydroxyl, C2, C4 have secondary hydroxyl.These activity hydroxies give paper strength by intermolecular hydrogen bonding effect, are also the reflecting points being prepared cellulose derivative by cellulose modified technology simultaneously.Hydroxyl can generate aldehyde radical and carboxyl functional group after peroxidating, and in paper industry, aldehyde radical can give paper better wet strength by forming hemiacetal structure; Carboxyl then can promote the swollen of fiber, is conducive to the making beating of paper pulp and the physical strength of paper; The fiber being rich in aldehyde radical and carboxyl can also prepare the derivative such as cellulose ethers, ester class, improves the functional and added value of cellulosics.But, in existing pulping process, timber or grass by getting the raw materials ready, dedusting, boiling, prepare satisfactory paper pulp after the operation such as bleaching.Although fiber creates the carboxyl of a part in boiling and bleaching process, its content lower (< 0.1mmol/g), to the swollen of fiber with paper is done, the increasing degree of wet strength is limited.
201210567052.8 processing technologys relating to a kind of U.S. line paper papermaking for making masking tape and U.S. line paper dipping, comprise papermaking part and impregnation processability part, papermaking part comprises wood pulp and discongests; Defibrination is by wood pulp through the making beating of double plate mill, beating degree 40-70 ° of SR, and weight in wet base is 6-11g, and beating consistency is 3.5-5.0%; With slurry is add softener and wet strength agent at the slurry after defibrination, and consumption is respectively 3-8kg/T slurry and 30-45kg/T slurry; Purification; Sieve is made; Upper net forming; Squeeze wrinkling: control wrinkling mass dryness fraction 36-45%; Dry; Batch and cut.The preparation method being given paper strength U.S. line paper impregnated paper by intermolecular hydrogen bonding effect is not related in this technique.
200610048966 also disclose a kind of immersion crepe paper and production technology, wherein also do not relate to the preparation method being given paper strength U.S. line paper impregnated paper by intermolecular hydrogen bonding effect.
Summary of the invention
Be necessary to provide a kind of preparation method containing multi-functional U.S. line paper impregnated paper for above-mentioned technical problem,
A production technology for immersion crepe paper, comprises papermaking part and impregnation processability part, and described papermaking part is got paper pulp and is configured to 3.8 ~ 4.0% consistency pulp in proportion, after hydrabrusher size degradation, carry out mill making beating, obtained stock quality is concentration 3.5 ~ 4.0%, beating degree: 40-45 ° SR, humidity 11-12g, after defibrination, adding auxiliary material, auxiliary material comprises reinforcing agent 1.0%-1.5%, wet strength agent 4.0-4.5%, degasser 0.8 ‰-1.0 ‰, and above-mentioned consumption is prepared burden in oven dry stock; Through papermaking net part forming, press dewatering, vat preliminary drying carry out wrinkling at this moment, drier through infrared ray, two cylinder, batch, rewind slitting; Described impregnation processability part comprises debatching, impregnation processability, drying, batch, cut and batch, pack, put in storage; Papermaking part provides plant fiber material; Boiling is carried out to plant fiber material and obtains paper pulp, and in paper pulp, add oxidation system after boiling step oxidation modification is carried out to fibrous raw material, this oxidation system adopts TEMPO catalytic oxidation system, periodate, nitrite, one of sodium chlorite and clorox.
Described paper pulp adopts 100% long fibre.
Auxiliary material also comprises softener, and described softener consumption is 3-8kg/T slurry.
Squeeze the wrinkling mass dryness fraction 36-45% of wrinkling control, creping doctor and cylinder angle are 25-35 °, wrinkling speed is poor≤and 20%.
The order of addition of described auxiliary material first adds softener, adds under normal temperature, added filtered reinforcing agent, wet strength agent and degasser again every 30-60 minute.
Described reinforcing agent selects carboxymethyl starch, and wet strength agent selects polyamide Hydrin resin.
The beneficial effect of the production technology of a kind of immersion crepe paper of the present invention:
After boiling step, add oxidation system be oxidized fiber, introduce carboxyl, aldehyde functions on the fiber surface, the paper pulp being rich in aldehyde radical, carboxyl functional group can be obtained, aldehyde radical is conducive to the wet strength improving paper, carboxyl is conducive to reducing beating energy consumption, and is conducive to the increase of paper strength.In addition, this is rich in multi-functional slurry and is also easier to prepare cellulose ethers, ester derivative.
By the U.S. line paper that this production technology is produced, by controlling the relation of beating degree and weight in wet base well, adopt the making beating mode of the free shape of half sticky shape half, select the roll flute avoiding fiber excessively to cut off, allow in pulping process and expose more fiber fines and hydroxyl, paper just can be allowed to have good bond strength, and keep longer fibre length (namely keeping high weight in wet base), paper can obtain larger percentage elongation simultaneously.In addition, add wet strength agent time with slurry, allow paper obtain wet strength, in impregnation processability, paper is unlikely to disconnected cloth; Add softener, allow paper obtain pliability.Moreover, adopting wet crepe, by controlling poor, the scraper angle of speed and wrinkling mass dryness fraction well, making paper obtain good flexibility and extensibility.Finally, impregnation process is carried out to crepe paper, allow U.S. line paper obtain higher intensity.
Detailed description of the invention
The present invention is further described below in conjunction with embodiment.
Embodiment 1,
A production technology for immersion crepe paper, needle wood chip adopts KP method boiling (boiling alkali charge is 20% of over dry slurry, sulphidity 24%, liquor ratio 1: 4, maximum temperature of cooking 170 DEG C, 180 minutes cooking and heat-preservation time).Slurry after boiling carries out TEMPO oxidation (0.5%, NaBr consumption of oxidation pH to be 10-10.5, TEMPO consumption be over dry slurry is 5%, NaClO consumption of over dry slurry is 1mmol/g bone dry fiber, and reaction temperature is 30 DEG C).Slurry after oxidation is bleached through OD0 (EO) D1D2, conditions of bleaching be O section (starch dense 10%, NaOH be over dry slurry 3%, oxygen pressure 0.6MPa, temperature 90 DEG C, 60 minutes time); D0 section (starch dense 10%, 45 minutes processing times, temperature 50 C, initial pH be 2.5, ClO2 consumption be 1.3% of over dry slurry); EO section (starch dense 10%, NaOH consumption be over dry slurry 3.0%, 40 minutes processing times, temperature 80 DEG C, initial pH be 11, oxygen pressure is 0.3MPa); D1 section (starch dense 6.0%, 180 minutes processing times, temperature 70 C, ClO2 consumption be 0.8% of over dry slurry, terminal pH is 3.5-4.0); D2 section (starches dense 10.0%, 180 minutes processing times, temperature 70 C, ClO
2consumption be over dry slurry 0.4%, terminal pH is 4.0-4.5).Paper pulp is obtained after washing.
In this paper pulp, carboxyl-content is 0.20mmol/g bone dry fiber, and aldehyde group content is 0.11mmol/g bone dry fiber.
Get paper pulp and be configured to 3.8 ~ 4.0% consistency pulp in proportion, after hydrabrusher size degradation, carry out mill making beating, obtained stock quality is concentration 3.5 ~ 4.0%, beating degree: 40-45 ° SR, humidity 11-12g, after defibrination, adding auxiliary material, auxiliary material comprises reinforcing agent 1.0%-1.5%, wet strength agent 4.0-4.5%, degasser 0.8 ‰-1.0 ‰, and above-mentioned consumption is prepared burden in oven dry stock; Through papermaking net part forming, press dewatering, vat preliminary drying carry out wrinkling at this moment, drier through infrared ray, two cylinder, batch, rewind slitting; Described impregnation processability part comprises debatching, impregnation processability, drying, batch, cut and batch, pack, put in storage.
Embodiment 2,
A production technology for immersion crepe paper, broad-leaved wood chip adopt the boiling of KP method (alkali charge be over dry slurry 16%, sulphidity 20%, liquor ratio 1:4, maximum temperature of cooking 170 DEG C, 90 minutes heating-up times, 150 minutes cooking and heat-preservation time).Slurry after boiling carry out TEMPO oxidation (oxidation pH to be 10-10.5, TEMPO consumption be over dry slurry 0.5%, NaBr consumption be over dry slurry 5%, NaClO consumption is 6mmol/g bone dry fiber, reaction temperature is 30 DEG C).Slurry after oxidation is bleached through OD0 (EO) D1, conditions of bleaching be O section (starch dense 10%, NaOH consumption be over dry slurry 3%, oxygen pressure is 0.4MPa, temperature 90 DEG C, initial pH be 10-11, time 60 minutes); D0 section (starch dense 10%, 30 minutes processing times, temperature 50 C, initial pH be 2.5, ClO2 consumption be 1.0% of over dry slurry); EO section (starch dense 10%, NaOH consumption 3.0%, 60 minutes processing times, temperature 70 C, initial pH be 11, oxygen pressure is 0.15MPa); D1 section (starch dense 10.0%, 180 minutes processing times, temperature 70 C, ClO2 consumption are over dry slurry 1.2%, bleaching terminal pH be 3-4).Paper pulp is obtained after washing.
In this paper pulp, carboxyl-content is 1.02mmol/g bone dry fiber, and aldehyde group content is 0.58mmol/g bone dry fiber.
Described papermaking part is got paper pulp and is configured to 3.8 ~ 4.0% consistency pulp in proportion, after hydrabrusher size degradation, carry out mill making beating, obtained stock quality is concentration 3.5 ~ 4.0%, beating degree: 40-45 ° SR, humidity 11-12g, after defibrination, adding auxiliary material, auxiliary material comprises reinforcing agent 1.0%-1.5%, wet strength agent 4.0-4.5%, degasser 0.8 ‰-1.0 ‰, and above-mentioned consumption is prepared burden in oven dry stock; Through papermaking net part forming, press dewatering, vat preliminary drying carry out wrinkling at this moment, drier through infrared ray, two cylinder, batch, rewind slitting; Described impregnation processability part comprises debatching, impregnation processability, drying, batch, cut and batch, pack, put in storage.
Embodiment 3,
A production technology for immersion crepe paper, broad-leaved wood chip adopt the boiling of KP method (alkali charge be over dry slurry 16%, sulphidity 20%, liquor ratio 1:4, maximum temperature of cooking 170 DEG C, 90 minutes heating-up times, temperature retention time 150 minutes).Slurry after boiling carry out TEMPO oxidation (oxidation pH to be 10-10.5, TEMPO consumption be over dry slurry 0.5%, NaBr consumption be over dry slurry 5%, NaClO consumption is 10mmol/g over dry slurry, reaction temperature is 30 DEG C).Slurry after oxidation is bleached through OD0 (EO) D1, conditions of bleaching be O section (starch dense 10%, NaOH consumption be over dry slurry 3%, oxygen pressure is 0.4MPa, temperature 90 DEG C, initial pH be 10-11, time 60 minutes); D0 section (is starched dense 10%, 30 minutes processing times, temperature 50 C, initial pH is 2.5, ClO
2consumption is 1.0%), EO section (starch dense 10%, NaOH consumption be over dry slurry 3.0%, 60 minutes processing times, temperature 70 C, initial pH be 11, oxygen pressure is 0.15MPa); D1 section (starch dense 10.0%, 180 minutes processing times, temperature 70 C, ClO2 consumption are over dry slurry 1.2%, bleaching terminal pH be 3-4).Paper pulp is obtained after washing.
In this paper pulp, carboxyl-content is 1.51mmol/g bone dry fiber, and aldehyde group content is 0.76mmol/g bone dry fiber.
Described papermaking part is got paper pulp and is configured to 3.8 ~ 4.0% consistency pulp in proportion, after hydrabrusher size degradation, carry out mill making beating, obtained stock quality is concentration 3.5 ~ 4.0%, beating degree: 40-45 ° SR, humidity 11-12g, after defibrination, adding auxiliary material, auxiliary material comprises reinforcing agent 1.0%-1.5%, wet strength agent 4.0-4.5%, degasser 0.8 ‰-1.0 ‰, and above-mentioned consumption is prepared burden in oven dry stock; Through papermaking net part forming, press dewatering, vat preliminary drying carry out wrinkling at this moment, drier through infrared ray, two cylinder, batch, rewind slitting; Described impregnation processability part comprises debatching, impregnation processability, drying, batch, cut and batch, pack, put in storage.
Claims (6)
1. the production technology of an immersion crepe paper, comprise papermaking part and impregnation processability part, described papermaking part is got paper pulp and is configured to 3.8 ~ 4.0% consistency pulp in proportion, after hydrabrusher size degradation, carry out mill making beating, obtained stock quality is concentration 3.5 ~ 4.0%, beating degree: 40-45 ° SR, humidity 11-12g, after defibrination, adding auxiliary material, auxiliary material comprises reinforcing agent 1.0%-1.5%, wet strength agent 4.0-4.5%, degasser 0.8 ‰-1.0 ‰, and above-mentioned consumption is prepared burden in oven dry stock; Through papermaking net part forming, press dewatering, vat preliminary drying carry out wrinkling at this moment, drier through infrared ray, two cylinder, batch, rewind slitting; Described impregnation processability part comprises debatching, impregnation processability, drying, batch, cut and batch, pack, put in storage; It is characterized in that, papermaking part provides plant fiber material; Boiling is carried out to plant fiber material and obtains paper pulp, and in paper pulp, add oxidation system after boiling step oxidation modification is carried out to fibrous raw material, this oxidation system adopts TEMPO catalytic oxidation system, periodate, nitrite, one of sodium chlorite and clorox.
2. the production technology of a kind of immersion crepe paper as claimed in claim 1, is characterized in that, described paper pulp adopts 100% long fibre.
3. the production technology of a kind of immersion crepe paper as claimed in claim 2, it is characterized in that, auxiliary material also comprises softener, and described softener consumption is 3-8kg/T slurry.
4. the production technology of a kind of immersion crepe paper as claimed in claim 3, is characterized in that, squeezes the wrinkling mass dryness fraction 36-45% of wrinkling control, and creping doctor and cylinder angle are 25-35 °, wrinkling speed is poor≤and 20%.
5. the production technology of a kind of immersion crepe paper as claimed in claim 4, is characterized in that, the order of addition of described auxiliary material first adds softener, adds under normal temperature, added filtered reinforcing agent, wet strength agent and degasser again every 30-60 minute.
6. the production technology of a kind of immersion crepe paper as claimed in claim 5, it is characterized in that, described reinforcing agent selects carboxymethyl starch, and wet strength agent selects polyamide Hydrin resin.
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| CN201410684184.8A CN104499359A (en) | 2014-11-25 | 2014-11-25 | Production method of dipping crepe paper |
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| CN201410684184.8A CN104499359A (en) | 2014-11-25 | 2014-11-25 | Production method of dipping crepe paper |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1126260A (en) * | 1994-05-27 | 1996-07-10 | 金伯特-克拉克公司 | Sulfonated cellulose and method of preparation |
| JP2006241601A (en) * | 2005-02-28 | 2006-09-14 | Univ Of Tokyo | High wet paper strength paper and method for producing the same |
| CN102400410A (en) * | 2011-09-28 | 2012-04-04 | 浙江鑫丰特种纸业股份有限公司 | Medical crepe wrapping paper and production process thereof |
| CN103015258A (en) * | 2012-12-25 | 2013-04-03 | 浙江晶鑫特种纸业有限公司 | Manufacturing process for macerative masking tape |
| CN103554274A (en) * | 2013-10-21 | 2014-02-05 | 昆明理工大学 | Preparation method of bagasse pith oxidized cellulose |
-
2014
- 2014-11-25 CN CN201410684184.8A patent/CN104499359A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1126260A (en) * | 1994-05-27 | 1996-07-10 | 金伯特-克拉克公司 | Sulfonated cellulose and method of preparation |
| JP2006241601A (en) * | 2005-02-28 | 2006-09-14 | Univ Of Tokyo | High wet paper strength paper and method for producing the same |
| CN102400410A (en) * | 2011-09-28 | 2012-04-04 | 浙江鑫丰特种纸业股份有限公司 | Medical crepe wrapping paper and production process thereof |
| CN103015258A (en) * | 2012-12-25 | 2013-04-03 | 浙江晶鑫特种纸业有限公司 | Manufacturing process for macerative masking tape |
| CN103554274A (en) * | 2013-10-21 | 2014-02-05 | 昆明理工大学 | Preparation method of bagasse pith oxidized cellulose |
Non-Patent Citations (1)
| Title |
|---|
| 覃炳达等: "TEMPO及其衍生物在造纸中的应用", 《造纸科学与技术》 * |
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Application publication date: 20150408 |