CN109736127A - A method for improving the softness of natural tissue paper - Google Patents
A method for improving the softness of natural tissue paper Download PDFInfo
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- CN109736127A CN109736127A CN201910049358.6A CN201910049358A CN109736127A CN 109736127 A CN109736127 A CN 109736127A CN 201910049358 A CN201910049358 A CN 201910049358A CN 109736127 A CN109736127 A CN 109736127A
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- eucalyptus
- pulp
- simao
- wood chips
- paper
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- 238000000034 method Methods 0.000 title claims abstract description 31
- 235000008331 Pinus X rigitaeda Nutrition 0.000 claims abstract description 63
- 235000011613 Pinus brutia Nutrition 0.000 claims abstract description 63
- 241000018646 Pinus brutia Species 0.000 claims abstract description 63
- 239000002023 wood Substances 0.000 claims abstract description 62
- 238000010411 cooking Methods 0.000 claims abstract description 50
- 239000007788 liquid Substances 0.000 claims abstract description 33
- 238000010009 beating Methods 0.000 claims abstract description 10
- 241000219927 Eucalyptus Species 0.000 claims description 120
- 239000002002 slurry Substances 0.000 claims description 43
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 42
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 38
- 239000003513 alkali Substances 0.000 claims description 36
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 35
- PYKYMHQGRFAEBM-UHFFFAOYSA-N anthraquinone Natural products CCC(=O)c1c(O)c2C(=O)C3C(C=CC=C3O)C(=O)c2cc1CC(=O)OC PYKYMHQGRFAEBM-UHFFFAOYSA-N 0.000 claims description 27
- 150000004056 anthraquinones Chemical class 0.000 claims description 27
- 238000010438 heat treatment Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- RGHILYZRVFRRNK-UHFFFAOYSA-N anthracene-1,2-dione Chemical compound C1=CC=C2C=C(C(C(=O)C=C3)=O)C3=CC2=C1 RGHILYZRVFRRNK-UHFFFAOYSA-N 0.000 claims 2
- 229910052979 sodium sulfide Inorganic materials 0.000 claims 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical group [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims 2
- 239000007921 spray Substances 0.000 claims 1
- 239000000835 fiber Substances 0.000 abstract description 30
- 229920001131 Pulp (paper) Polymers 0.000 abstract description 28
- 244000166124 Eucalyptus globulus Species 0.000 abstract 4
- 235000005205 Pinus Nutrition 0.000 description 52
- 241000218602 Pinus <genus> Species 0.000 description 52
- 238000009835 boiling Methods 0.000 description 30
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 27
- 229910052708 sodium Inorganic materials 0.000 description 27
- 239000011734 sodium Substances 0.000 description 27
- 238000010792 warming Methods 0.000 description 14
- 238000000605 extraction Methods 0.000 description 12
- 238000011084 recovery Methods 0.000 description 12
- 239000000126 substance Substances 0.000 description 12
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 description 10
- MWPLVEDNUUSJAV-UHFFFAOYSA-N anthracene Chemical compound C1=CC=CC2=CC3=CC=CC=C3C=C21 MWPLVEDNUUSJAV-UHFFFAOYSA-N 0.000 description 10
- 239000000428 dust Substances 0.000 description 7
- 235000008216 herbs Nutrition 0.000 description 7
- 238000005360 mashing Methods 0.000 description 7
- 238000010025 steaming Methods 0.000 description 7
- 238000004073 vulcanization Methods 0.000 description 5
- 238000000746 purification Methods 0.000 description 4
- 244000007853 Sarothamnus scoparius Species 0.000 description 2
- 238000004061 bleaching Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000004537 pulping Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- 210000000697 sensory organ Anatomy 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000004902 Softening Agent Substances 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 210000000630 fibrocyte Anatomy 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 230000026676 system process Effects 0.000 description 1
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- Paper (AREA)
Abstract
本发明公开了一种提高本色生活用纸柔软性能的方法，属于制浆造纸技术领域。本发明采用桉木蒸煮药液和思茅松蒸煮药液分别对桉木木片和思茅松木片进行蒸煮，然后再将桉木纸浆和思茅松纸浆混合均匀，将浆浓调至中浓，然后送入磨盘打浆至打浆度为28~32°SR，磨盘打浆的浆料送入生活纸机中进行抄纸即得本色生活用纸。本发明方法可得到几乎完全单离的单根纤维，浆中纤维束含量明显减少，降低桉木和思茅松纸浆纤维的挺硬度，提高纸浆纤维的分丝帚化，在不添加柔软助剂的情况下，明显提高本色生活用纸柔软性能，其柔软度值可减小40%。The invention discloses a method for improving the softness of natural tissue paper, and belongs to the technical field of pulp and paper making. In the present invention, the eucalyptus wood cooking liquid and the Simao pine cooking liquid are respectively used to cook the eucalyptus wood chips and the Simao pine wood chips, and then the eucalyptus wood pulp and the Simao pine pulp are evenly mixed, and the pulp concentration is adjusted to medium concentration, and then sent into the The pulp is beaten by the grinding disc until the beating degree is 28~32°SR, and the pulp beaten by the grinding disc is sent to the tissue paper machine for papermaking to obtain the natural tissue paper. The method of the invention can obtain almost completely isolated single fibers, the fiber bundle content in the pulp is obviously reduced, the stiffness of the eucalyptus and Simao pine pulp fibers is reduced, and the splitting of the pulp fibers is improved. In this case, the softness of natural tissue paper is significantly improved, and its softness value can be reduced by 40%.
Description
Technical field
The present invention relates to a kind of methods for improving true qualities paper for daily use softness, belong to pulp and paper technology field.
Background technique
Paper for daily use is one of the necessity in people's daily life, and the product quality of paper for daily use will have a direct impact on people's
Health.With the raising of people's quality of life bring paper for daily use demand day is added it is vigorous, to its product quality and matter
The requirement of amount is also higher and higher.Flexibility is to evaluate the important indicator of paper for daily use quality.From bleaching paper for daily use product quality
In terms of embodiment with quality, commercially available bleaching paper for daily use is to can satisfy requirement completely.However, paper for daily use in recent years
Occurs true qualities paper for daily use in market, though product quality reaches true qualities paper for daily use requirement, its flexibility does not comply with one's wishes still.
Fibre bundle content is higher in true qualities paper pulp made from conventional boiling, since paper for daily use belongs to thin paper, fibre bundle
Not only size is significantly greater than single fiber, and color is darker, just will form color spot dust on page, leads to page sense organ and product
Matter is substantially reduced and the softness values of paper for daily use are in 280mN or more.For the true qualities paper for daily use of high-quality and flexibility
Production, paper pulp used requires to remove fiber impurity as far as possible and adds the matter of auxiliary agent (softening agent) Lai Gaishan true qualities paper for daily use
Amount.Currently, mostly being removed to the maximum extent with strengthening the measures such as screening, purification to the control of wood pulp cellulose impurity, bring
While one problem is then operation investment and increased costs, paper pulp loss is more, and true qualities paper pulp paper for daily use is caused to produce
Cost is higher than bleached pulp paper for daily use instead.
Contain more fibre bundle in true qualities paper pulp made from the prior art, and the stiff degree of single fiber is higher, causes
True qualities paper for daily use sense organ produced and feel are poor, and flexibility is bad；Fibrocyte is defeated and dispersed in pulping process, brooming is tired
Difficulty, and be easily cut off, fiber fines increased significantly, and paper for daily use picking is serious.
Summary of the invention
For the bad technical problem of true qualities paper pulp paper for daily use flexibility, the present invention provides a kind of raising true qualities life use
Almost isolated single fiber can be obtained in the method for paper softness, the method for the present invention, and fibre bundle content obviously subtracts in slurry
It is few, the stiff degree of Eucalyptus and pinus khasys paper pulp fiber is reduced, the wire-dividing broom purification of paper pulp fiber is improved, is not adding soft additive
In the case of, hence it is evident that improve true qualities paper for daily use softness.
A method of improving true qualities paper for daily use softness, the specific steps are as follows:
(1) Eucalyptus is peeled, processing of chipping obtains Eucalyptus wood chip, then in Eucalyptus wood chip be added Eucalyptus cooking liquor,
At the uniform velocity being warming up to temperature is 145 ~ 155 DEG C and constant temperature 240 ~ 300min of boiling, and slurry spurts, and washing, sieving obtain eucalyptus pulp；
Wherein at the uniform velocity heating rate is 0.8 ~ 0.87 DEG C/min；
(2) pinus khasys is peeled, processing of chipping obtains Simao pine sheet, the then addition pinus khasys steaming in the pine sheet of Simao
Liquid is decocted medicinal herbs, being at the uniform velocity warming up to temperature is 150 ~ 158 DEG C and constant temperature 270 ~ 330min of boiling, and slurry spurts, and washing, sieving are thought
Mao Song paper pulp；Wherein at the uniform velocity heating rate is 0.8 ~ 0.9 DEG C/min；
(3) eucalyptus pulp of step (1) and the pinus khasys paper pulp of step (2) are uniformly mixed and obtain pulp mixture and adds water tune
Slurry to concentration of slurry is 10 ~ 20%, and it is 28 ~ 32 ° of SR that then dense mill, which is beaten to beating degree, in progress；
(4) slurry of step (3) mill mashing is sent into progress copy paper in domestic paper machine and obtains true qualities paper for daily use.
The mass dryness fraction of step (1) Eucalyptus is not less than 85%, contains alkali, sulfide and anthraquinone, Eucalyptus in Eucalyptus cooking liquor
The solid-to-liquid ratio g:mL of wood chip and Eucalyptus cooking liquor is 1:(4 ~ 5), the mass ratio of alkali and Eucalyptus wood chip is (18 ~ 21): 100, sulphur
The mass ratio of compound and Eucalyptus wood chip is (24 ~ 28): 100, the mass ratio of anthraquinone and Eucalyptus wood chip is (0.05 ~ 0.2): 100.
Alkali is sodium hydroxide or potassium hydroxide in the Eucalyptus cooking liquor, and sulfide is vulcanized sodium.
The mass dryness fraction of step (2) pinus khasys is not less than 85%, contains alkali, sulfide and anthraquinone in pinus khasys cooking liquor,
The solid-to-liquid ratio g:mL of Simao pine sheet and pinus khasys cooking liquor is 1:(4 ~ 5), the mass ratio of alkali and Simao pine sheet be (22 ~
26): 100, the mass ratio of sulfide and Simao pine sheet is (24 ~ 28): 100, the mass ratio of anthraquinone and Simao pine sheet is
(0.05~0.2):100。
Alkali is sodium hydroxide or potassium hydroxide in the pinus khasys cooking liquor, and sulfide is vulcanized sodium.
The quality of eucalyptus pulp accounts for 70 ~ 80% in step (3) pulp mixture.
Beneficial effects of the present invention:
(1) conditions of cooking and technique that the present invention uses carry out boiling, the yield base of paper pulp to Eucalyptus wood chip and Simao pine sheet
This is constant or is slightly decreased, but the stiff degree of single fiber is substantially reduced, and the feel of true qualities paper for daily use produced is preferable, soft
It is soft preferable；
(2) conditions of cooking and technique that the present invention uses carry out boiling to Eucalyptus wood chip and Simao pine sheet, and disposable boiling is arrived
The paper pulp fiber beam that position obtains substantially reduces, and fiber is almost isolated, and cooking homogeneities significantly improve, and overcomes conventional procedure
More fiber loss is brought with purification by strengthening screening, the problem of natural color pulp cost remains high；
(3) present invention is beaten after mixing according to a certain ratio using eucalyptus pulp and pinus khasys paper pulp, in pulping process
There is mutually rubbing between eucalyptus pulp fibers and pinus khasys paper pulp fiber, so that fiber surface is kept away more by wire-dividing broom purification
Exempt from that fiber is excessive to be cut off, and fiber modification is good, the flexibility of true qualities paper for daily use produced is good.
Specific embodiment
Invention is further described in detail With reference to embodiment, but protection scope of the present invention and unlimited
In the content.
Embodiment 1: a method of improving true qualities paper for daily use softness, the specific steps are as follows:
(1) Eucalyptus is peeled, processing of chipping obtains Eucalyptus piece, then in Eucalyptus wood chip be added Eucalyptus cooking liquor, it is even
It is 145 DEG C and constant temperature boiling 240min that speed, which is warming up to temperature, after boiling, implements spurting for slurry, according to conventional processing routes
It washed, be sieved, the black liquor of extraction enters chemical recovery system, and clean eucalyptus pulp is spare；Wherein at the uniform velocity heating rate is
0.80℃/min；The mass dryness fraction of Eucalyptus is not less than 85%, contains alkali (sodium hydroxide), sulfide (vulcanized sodium) in Eucalyptus cooking liquor
And anthraquinone, the solid-to-liquid ratio g:mL of Eucalyptus piece and Eucalyptus cooking liquor are 1:4.0, the mass ratio of alkali (sodium hydroxide) and Eucalyptus wood chip
For 18:100, the mass ratio of sulfide (vulcanized sodium) and Eucalyptus wood chip is 24:100, and the mass ratio of anthraquinone and Eucalyptus wood chip is
0.05:100；
(2) pinus khasys is peeled, processing of chipping obtains Simao pine sheet, the then addition pinus khasys steaming in the pine sheet of Simao
Liquid is decocted medicinal herbs, being at the uniform velocity warming up to temperature is 150 DEG C and constant temperature boiling 270min, after boiling, implements spurting for slurry, according to tradition
Process route is washed, is sieved, and the black liquor of extraction enters chemical recovery system, and clean pinus khasys paper pulp is spare；Wherein at the uniform velocity
Heating rate is 0.80 DEG C/min；The mass dryness fraction of pinus khasys is not less than 85%, in pinus khasys cooking liquor containing alkali (sodium hydroxide),
The solid-to-liquid ratio g:mL of sulfide (vulcanized sodium) and anthraquinone, Simao pine sheet and pinus khasys cooking liquor is 1:4.0, alkali (hydroxide
Sodium) it with the mass ratio of Simao pine sheet is 22:100, the mass ratio of sulfide (vulcanized sodium) and Simao pine sheet is 24:100, anthracene
The mass ratio of quinone and Simao pine sheet is 0.05:100；
(3) eucalyptus pulp of step (1) and the pinus khasys paper pulp of step (2) are uniformly mixed and obtain pulp mixture and adds water tune
Slurry to concentration of slurry is 10%, and it is 28 ° of SR that then dense mill, which is beaten to beating degree, in progress；Wherein Eucalyptus paper in pulp mixture
The quality of slurry accounts for 80%；
(4) slurry of step (3) mill mashing is sent into progress copy paper in domestic paper machine and obtains true qualities paper for daily use；
The softness values of the present embodiment true qualities paper for daily use are 150 ~ 160mN, at paper fiber dust >=1mm2Less than 8/m2,
Grade A paper for daily use index is reached.
Embodiment 2: a method of improving true qualities paper for daily use softness, the specific steps are as follows:
(1) Eucalyptus is peeled, processing of chipping obtains Eucalyptus wood chip, then in Eucalyptus wood chip be added Eucalyptus cooking liquor,
At the uniform velocity being warming up to temperature is 155 DEG C and constant temperature boiling 300min, after boiling, implements spurting for slurry, according to traditional handicraft road
Line is washed, is sieved, and the black liquor of extraction enters chemical recovery system, and clean eucalyptus pulp is spare；Wherein at the uniform velocity heating rate
For 0.87 DEG C/min；The mass dryness fraction of Eucalyptus is not less than 85%, contains alkali (potassium hydroxide), sulfide (vulcanization in Eucalyptus cooking liquor
Sodium) and anthraquinone, the solid-to-liquid ratio g:mL of Eucalyptus wood chip and Eucalyptus cooking liquor is 1:5.0, alkali (potassium hydroxide) and Eucalyptus wood chip
Mass ratio is 21:100, and the mass ratio of sulfide (vulcanized sodium) and Eucalyptus wood chip is 28:100, the quality of anthraquinone and Eucalyptus wood chip
Than for 0.2:100；
(2) pinus khasys is peeled, processing of chipping obtains Simao pine sheet, the then addition pinus khasys steaming in the pine sheet of Simao
Liquid is decocted medicinal herbs, being at the uniform velocity warming up to temperature is 154 DEG C and constant temperature boiling 300min, after boiling, implements spurting for slurry, according to tradition
Process route is washed, is sieved, and the black liquor of extraction enters chemical recovery system, and clean pinus khasys paper pulp is spare；Wherein at the uniform velocity
Heating rate is 0.85 DEG C/min；The mass dryness fraction of pinus khasys is not less than 85%, in pinus khasys cooking liquor containing alkali (potassium hydroxide),
The solid-to-liquid ratio g:mL of sulfide (vulcanized sodium) and anthraquinone, Simao pine sheet and pinus khasys cooking liquor is 1:4.5, alkali (hydroxide
Potassium) it with the mass ratio of Simao pine sheet is 24:100, the mass ratio of sulfide (vulcanized sodium) and Simao pine sheet is 26:100, anthracene
The mass ratio of quinone and Simao pine sheet is 0.12:100；
(3) eucalyptus pulp of step (1) and the pinus khasys paper pulp of step (2) are uniformly mixed and obtain pulp mixture and adds water tune
Slurry to concentration of slurry is 15%, and it is 30 ° of SR that then dense mill, which is beaten to beating degree, in progress；Wherein Eucalyptus paper in pulp mixture
The quality of slurry accounts for 70%；
(4) slurry of step (3) mill mashing is sent into progress copy paper in domestic paper machine and obtains true qualities paper for daily use；
The softness values of the present embodiment true qualities paper for daily use are 100 ~ 110mN, at paper fiber dust >=1mm2Less than 6/m2,
Grade A paper for daily use index is reached.
Embodiment 3: a method of improving true qualities paper for daily use softness, the specific steps are as follows:
(1) Eucalyptus is peeled, processing of chipping obtains Eucalyptus wood chip, then in Eucalyptus wood chip be added Eucalyptus cooking liquor,
At the uniform velocity being warming up to temperature is 155 DEG C and constant temperature boiling 300min, after boiling, implements spurting for slurry, according to traditional handicraft road
Line is washed, is sieved, and the black liquor of extraction enters chemical recovery system, and clean eucalyptus pulp is spare；Wherein at the uniform velocity heating rate
For 0.87 DEG C/min；The mass dryness fraction of Eucalyptus is not less than 85%, contains alkali (sodium hydroxide), sulfide (vulcanization in Eucalyptus cooking liquor
Sodium) and anthraquinone, the solid-to-liquid ratio g:mL of Eucalyptus wood chip and Eucalyptus cooking liquor is 1:5, the matter of alkali (sodium hydroxide) and Eucalyptus wood chip
Ratio is measured as 21:100, the mass ratio of sulfide (vulcanized sodium) and Eucalyptus wood chip is 28:100, the mass ratio of anthraquinone and Eucalyptus wood chip
For 0.2:100；
(2) pinus khasys is peeled, processing of chipping obtains Simao pine sheet, the then addition pinus khasys steaming in the pine sheet of Simao
Liquid is decocted medicinal herbs, being at the uniform velocity warming up to temperature is 158 DEG C and constant temperature boiling 330min.After boiling, implement spurting for slurry, according to tradition
Process route is washed, is sieved, and the black liquor of extraction enters chemical recovery system, and clean pinus khasys paper pulp is spare；Wherein at the uniform velocity
Heating rate is 0.90 DEG C/min；The mass dryness fraction of pinus khasys is not less than 85%, in pinus khasys cooking liquor containing alkali (potassium hydroxide),
The solid-to-liquid ratio g:mL of sulfide (vulcanized sodium) and anthraquinone, Simao pine sheet and pinus khasys cooking liquor is 1:5.0, alkali (hydroxide
Potassium) it with the mass ratio of Simao pine sheet is 26:100, the mass ratio of sulfide (vulcanized sodium) and Simao pine sheet is 28:100, anthracene
The mass ratio of quinone and Simao pine sheet is 0.2:100；
(3) eucalyptus pulp of step (1) and the pinus khasys paper pulp of step (2) are uniformly mixed and obtain pulp mixture and adds water tune
Slurry to concentration of slurry is 20%, and it is 30 ° of SR that then dense mill, which is beaten to beating degree, in progress；Wherein Eucalyptus paper in pulp mixture
The quality of slurry accounts for 80%；
(4) slurry of step (3) mill mashing is sent into progress copy paper in domestic paper machine and obtains true qualities paper for daily use；
The softness values of the present embodiment true qualities paper for daily use are 80 ~ 90mN, at paper fiber dust >=1mm2Less than 4/m2, reach
Grade A paper for daily use index is arrived.
Embodiment 4: a method of improving true qualities paper for daily use softness, the specific steps are as follows:
(1) Eucalyptus is peeled, processing of chipping obtains Eucalyptus wood chip, then in Eucalyptus wood chip be added Eucalyptus cooking liquor,
At the uniform velocity being warming up to temperature is 150 DEG C and constant temperature boiling 270min, after boiling, implements spurting for slurry, according to traditional handicraft road
Line is washed, is sieved, and the black liquor of extraction enters chemical recovery system, and clean eucalyptus pulp is spare；Wherein at the uniform velocity heating rate
For 0.84 DEG C/min；The mass dryness fraction of Eucalyptus is not less than 85%, contains alkali (sodium hydroxide), sulfide (vulcanization in Eucalyptus cooking liquor
Sodium) and anthraquinone, the solid-to-liquid ratio g:mL of Eucalyptus wood chip and Eucalyptus cooking liquor is 1:4.5, alkali (sodium hydroxide) and Eucalyptus wood chip
Mass ratio is 20:100, and the mass ratio of sulfide (vulcanized sodium) and Eucalyptus wood chip is 26:100, the quality of anthraquinone and Eucalyptus wood chip
Than for 0.12:100；
(2) pinus khasys is peeled, processing of chipping obtains Simao pine sheet, the then addition pinus khasys steaming in the pine sheet of Simao
Liquid is decocted medicinal herbs, being at the uniform velocity warming up to temperature is 154 DEG C and 300 min of constant temperature boiling.After boiling, implement spurting for slurry, according to biography
System process route is washed, is sieved, and the black liquor of extraction enters chemical recovery system, and clean pinus khasys paper pulp is spare；It is wherein even
Fast heating rate is 0.85 DEG C/min；The mass dryness fraction of pinus khasys is not less than 85%, contains alkali (hydroxide in pinus khasys cooking liquor
Sodium), sulfide (vulcanized sodium) and anthraquinone, the solid-to-liquid ratio g:mL of Simao pine sheet and pinus khasys cooking liquor is 1:4.5, alkali (hydrogen
Sodium oxide molybdena) it with the mass ratio of Simao pine sheet is 24:100, the mass ratio of sulfide (vulcanized sodium) and Simao pine sheet is 26:
100, the mass ratio of anthraquinone and Simao pine sheet is 0.12:100；
(3) eucalyptus pulp of step (1) and the pinus khasys paper pulp of step (2) are uniformly mixed and obtain pulp mixture and adds water tune
Slurry to concentration of slurry is 15%, then carries out mill to be beaten to beating degree being 32 ° of SR；Wherein eucalyptus pulp in pulp mixture
Quality accounts for 72%；
(4) slurry of step (3) mill mashing is sent into progress copy paper in domestic paper machine and obtains true qualities paper for daily use；
The softness values of the present embodiment true qualities paper for daily use are 120 ~ 130mN, at paper fiber dust >=1mm2Less than 6/m2,
Grade A paper for daily use index is reached.
Embodiment 5: a method of improving true qualities paper for daily use softness, the specific steps are as follows:
(1) Eucalyptus is peeled, processing of chipping obtains Eucalyptus wood chip, then in Eucalyptus wood chip be added Eucalyptus cooking liquor,
At the uniform velocity being warming up to temperature is 155 DEG C and constant temperature boiling 300min, after boiling, implements spurting for slurry, according to traditional handicraft road
Line is washed, is sieved, and the black liquor of extraction enters chemical recovery system, and clean eucalyptus pulp is spare；Wherein at the uniform velocity heating rate
For 0.87 DEG C/min；The mass dryness fraction of Eucalyptus is not less than 85%, contains alkali (potassium hydroxide), sulfide (vulcanization in Eucalyptus cooking liquor
Sodium) and anthraquinone, the solid-to-liquid ratio g:mL of Eucalyptus wood chip and Eucalyptus cooking liquor is 1:5, the matter of alkali (potassium hydroxide) and Eucalyptus wood chip
Ratio is measured as 21:100, the mass ratio of sulfide (vulcanized sodium) and Eucalyptus wood chip is 28:100, the mass ratio of anthraquinone and Eucalyptus wood chip
For 0.2:100；
(2) pinus khasys is peeled, processing of chipping obtains Simao pine sheet, the then addition pinus khasys steaming in the pine sheet of Simao
Liquid is decocted medicinal herbs, being at the uniform velocity warming up to temperature is 150 DEG C and constant temperature boiling 270min, after boiling, implements spurting for slurry, according to tradition
Process route is washed, is sieved, and the black liquor of extraction enters chemical recovery system, and clean pinus khasys paper pulp is spare；Wherein at the uniform velocity
Heating rate is 0.80 DEG C/min；The mass dryness fraction of pinus khasys is not less than 85%, in pinus khasys cooking liquor containing alkali (potassium hydroxide),
The solid-to-liquid ratio g:mL of sulfide (vulcanized sodium) and anthraquinone, Simao pine sheet and pinus khasys cooking liquor is 1:4.0, alkali (hydroxide
Potassium) it with the mass ratio of Simao pine sheet is 22:100, the mass ratio of sulfide (vulcanized sodium) and Simao pine sheet is 24:100, anthracene
The mass ratio of quinone and Simao pine sheet is 0.05:100；
(3) eucalyptus pulp of step (1) and the pinus khasys paper pulp of step (2) are uniformly mixed and obtain pulp mixture and adds water tune
Slurry to concentration of slurry is 18%, and it is 32 ° of SR that then dense mill, which is beaten to beating degree, in progress；Wherein Eucalyptus paper in pulp mixture
The quality of slurry accounts for 75%；
(4) slurry of step (3) mill mashing is sent into progress copy paper in domestic paper machine and obtains true qualities paper for daily use；
The softness values of the present embodiment true qualities paper for daily use are 110 ~ 120mN, at paper fiber dust >=1mm2Less than 6/m2,
Grade A paper for daily use index is reached.
Embodiment 6: a method of improving true qualities paper for daily use softness, the specific steps are as follows:
(1) Eucalyptus is peeled, processing of chipping obtains Eucalyptus wood chip, then in Eucalyptus wood chip be added Eucalyptus cooking liquor,
At the uniform velocity being warming up to temperature is 145 DEG C and constant temperature boiling 240min, after boiling, implements spurting for slurry, according to traditional handicraft road
Line is washed, is sieved, and the black liquor of extraction enters chemical recovery system, and clean eucalyptus pulp is spare；Wherein at the uniform velocity heating rate
For 0.80 DEG C/min；The mass dryness fraction of Eucalyptus is not less than 85%, contains alkali (potassium hydroxide), sulfide (vulcanization in Eucalyptus cooking liquor
Sodium) and anthraquinone, the solid-to-liquid ratio g:mL of Eucalyptus wood chip and Eucalyptus cooking liquor is 1:4.0, alkali (potassium hydroxide) and Eucalyptus wood chip
Mass ratio is 18:100, and the mass ratio of sulfide (vulcanized sodium) and Eucalyptus wood chip is 24:100, the quality of anthraquinone and Eucalyptus wood chip
Than for 0.05:100；
(2) pinus khasys is peeled, processing of chipping obtains Simao pine sheet, the then addition pinus khasys steaming in the pine sheet of Simao
Liquid is decocted medicinal herbs, being at the uniform velocity warming up to temperature is 158 DEG C and constant temperature boiling 330min.After boiling, implement spurting for slurry, according to tradition
Process route is washed, is sieved, and the black liquor of extraction enters chemical recovery system, and clean pinus khasys paper pulp is spare；Wherein at the uniform velocity
Heating rate is 0.90 DEG C/min；The mass dryness fraction of pinus khasys is not less than 85%, in pinus khasys cooking liquor containing alkali (sodium hydroxide),
The solid-to-liquid ratio g:mL of sulfide (vulcanized sodium) and anthraquinone, Simao pine sheet and pinus khasys cooking liquor is 1:5.0, alkali (hydroxide
Sodium) it with the mass ratio of Simao pine sheet is 26:100, the mass ratio of sulfide (vulcanized sodium) and Simao pine sheet is 28:100, anthracene
The mass ratio of quinone and Simao pine sheet is 0.2:100；
(3) eucalyptus pulp of step (1) and the pinus khasys paper pulp of step (2) are uniformly mixed and obtain pulp mixture and adds water tune
Slurry to concentration of slurry is 20%, and it is 28 ° of SR that then dense mill, which is beaten to beating degree, in progress；Wherein Eucalyptus paper in pulp mixture
The quality of slurry accounts for 75%；
(4) slurry of step (3) mill mashing is sent into progress copy paper in domestic paper machine and obtains true qualities paper for daily use；
The softness values of the present embodiment true qualities paper for daily use are 150 ~ 160mN, at paper fiber dust >=1mm2Less than 6/m2,
Grade A paper for daily use index is reached.
Claims (6)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115182186A (en) * | 2022-08-01 | 2022-10-14 | 贵州赤天化纸业股份有限公司 | Production method of environment-friendly and energy-saving household paper pulp |
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| US20030201083A1 (en) * | 2002-04-25 | 2003-10-30 | Weyerhaeuser Company | Method for making tissue and towel products containing crosslinked cellulosic fibers |
| CN103628343A (en) * | 2013-11-01 | 2014-03-12 | 维达纸业（中国）有限公司 | Low-basis-weight compact fine soft tissue and production method thereof |
| CN108193539A (en) * | 2017-12-28 | 2018-06-22 | 云南云景林纸股份有限公司 | A kind of preparation method for obtaining uniformly separation eucalyptus pulp fibers |
| CN108221453A (en) * | 2017-12-29 | 2018-06-29 | 云南云景林纸股份有限公司 | A kind of preparation method of pure wood pulp true qualities paper for daily use |
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| US20030201083A1 (en) * | 2002-04-25 | 2003-10-30 | Weyerhaeuser Company | Method for making tissue and towel products containing crosslinked cellulosic fibers |
| CN103628343A (en) * | 2013-11-01 | 2014-03-12 | 维达纸业（中国）有限公司 | Low-basis-weight compact fine soft tissue and production method thereof |
| CN108193539A (en) * | 2017-12-28 | 2018-06-22 | 云南云景林纸股份有限公司 | A kind of preparation method for obtaining uniformly separation eucalyptus pulp fibers |
| CN108221453A (en) * | 2017-12-29 | 2018-06-29 | 云南云景林纸股份有限公司 | A kind of preparation method of pure wood pulp true qualities paper for daily use |
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| CN115182186A (en) * | 2022-08-01 | 2022-10-14 | 贵州赤天化纸业股份有限公司 | Production method of environment-friendly and energy-saving household paper pulp |
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