CN107022922A - A kind of paper for daily use that is exclusively used in improves bleached bamboo pulp of feel and preparation method thereof - Google Patents

A kind of paper for daily use that is exclusively used in improves bleached bamboo pulp of feel and preparation method thereof Download PDF

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Publication number
CN107022922A
CN107022922A CN201710413483.1A CN201710413483A CN107022922A CN 107022922 A CN107022922 A CN 107022922A CN 201710413483 A CN201710413483 A CN 201710413483A CN 107022922 A CN107022922 A CN 107022922A
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Prior art keywords
bamboo pulp
adt
oxygen
paper
boiling
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CN201710413483.1A
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CN107022922B (en
Inventor
雷治
黎小冰
林延生
张鼎军
王义勇
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Hubei sincere Paper Co., Ltd
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Wellmind Paper (chongqing) Co Ltd
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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
    • D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
    • D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D21C3/022—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of S-containing compounds
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
    • D21C3/026—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes in presence of O2, e.g. air
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1057—Multistage, with compounds cited in more than one sub-group D21C9/10, D21C9/12, D21C9/16
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/1068—Bleaching ; Apparatus therefor with O2
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/12—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds
    • D21C9/123—Bleaching ; Apparatus therefor with halogens or halogen-containing compounds with Cl2O
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
    • D21C9/10—Bleaching ; Apparatus therefor
    • D21C9/16—Bleaching ; Apparatus therefor with per compounds
    • D21C9/163—Bleaching ; Apparatus therefor with per compounds with peroxides

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Paper (AREA)

Abstract

The present invention, which provides a kind of paper for daily use that is exclusively used in, improves the bleached bamboo pulp preparation method of feel, taken off and blanching step including boiling, oxygen, boiling uses low temperature double tower continuous steaming-boiling technology, boiling Kappa number is reduced to 14~17, viscosity is in 1100~1200mL/g, oxygen is de- using two sections of Extended Delignification techniques, Kappa number is 8~10 after oxygen is de-, viscosity is in 900~1000mL/g, bleaching uses Q OP D PO bleaching process, the soft bamboo pulp whiteness of after bleaching is bleached in 84~87%ISO, viscosity is in 700~800mL/g, its physical index and the basic indifference of conventional bleached bamboo pulp.The present invention also provides the bleached bamboo pulp that a kind of use aforementioned preparation process is made.The preparation method that the present invention is provided, effectively reduce boiling Kappa number, it is declined slightly boiling disposed slurry viscosity, physical index is held essentially constant, so as to reduce the stiff degree of bamboo pulp fiber, obtaining a kind of paper for daily use that is exclusively used in improves the soft bamboo pulp of bleaching of feel, after the bamboo pulp is mixed with other slurries, the paper for daily use produced has preferable feel, and its flexibility and comfortableness all become more preferable.

Description

A kind of paper for daily use that is exclusively used in improves bleached bamboo pulp of feel and preparation method thereof
Technical field
The present invention relates to pulp technology for making paper, and in particular to it is a kind of be exclusively used in paper for daily use improve feel bleached bamboo pulp and Its preparation method.
Background technology
At present, the bamboo pulp kind specifically designed for the exploitation suitable for paper for daily use characteristic is there is no both at home and abroad.It is conventional Bleached bamboo pulp, its boiling is using chemical sulfate pulping technique, specifically by the way of low temperature continuously cooking, and bleaching uses Q- OP-D-PO bleaching process, is thus made bleached bamboo pulp.The physical index of the bleached bamboo pulp：Tensile index is 53-58Nm/g, Burst index is 4.3-4.6kPam2/g, and tear index is 10.5-11.5mNm2/g, and it has met or exceeded national quality High-class product in standard.
Conventional bleached bamboo pulp can be mixed for production and living paper in proportion by other bleached pulps with eucalyptus pulp and pine slurry etc., Such as roll web, napkin paper, paper extraction, tissue etc. has a large amount of bamboo and wood mixing slurry paper for daily use products on the market at present.
There is bamboo pulp the paper for daily use after the effect of natural antibacterial, antibacterial, sterilization and deodorization, therefore mixing bamboo pulp to have Higher health；Meanwhile, bamboo pulp fiber is thinner, and gas permeability is preferable, therefore the paper for daily use produced after mixing bamboo pulp also has Standby more preferable gas permeability.
But, the present inventor has found by research, is small rule paper because paper for daily use is relative in paper-making industry paper kind Veriety, its fiber softening of paper for daily use characteristic requirements.And the conventional bamboo pulp for being currently used in paper for daily use production is common Slurry kind, this slurry kind characteristic is fiber Cobalt hard, mainly emphasizes the intensity and Cobalt degree of fiber；Suitable for industrial packaging paper and text The characteristic of change paper, there is no the bamboo pulp kind specifically designed for the exploitation suitable for paper for daily use characteristic both at home and abroad at present； Conventional bamboo pulp is due to fiber properties relation, and its fiber is longer, in fusiform, and two ends are sharp, its average length it is general 1.5~ 2.1 millimeters, wall thickness chamber is small, more stiff than great, fiber, therefore the paper for daily use produced is not soft enough, causes feel degree It is poor.
The content of the invention
It is existing for there is no the bamboo pulp kind specifically designed for the exploitation suitable for paper for daily use characteristic both at home and abroad at present With the presence of technology conventional bamboo pulp due to fiber properties relation, cause the paper for daily use produced not soft enough, feel degree compared with The technical problem of difference, the present invention, which provides a kind of paper for daily use that is exclusively used in, improves the bleached bamboo pulp preparation method of feel, to obtain forever The bamboo pulp fiber of long property softening.
In order to solve the above-mentioned technical problem, present invention employs following technical scheme：
A kind of paper for daily use that is exclusively used in improves the bleached bamboo pulp preparation method of feel, comprises the following steps：
S1, boiling：By the bamboo material got ready section feeding boiling vessel, using low temperature double tower continuous steaming-boiling technology, by bamboo material section absolutely Dry weight, the alkali of addition 21.5~22.5%, sulphidity 21~23% adds 0.98~1.02kg/adt digesting assistants, Under the conditions of boiling temperature is 145~148 DEG C, continuously cooking 5~6 hours, thick slurry Kappa number is 14~17 after boiling, and viscosity exists 1100~1200mL/g；
S2, oxygen take off：The coarse particles that boiling is obtained send into oxygen reaction tower, using two sections of Extended Delignification techniques, by thick slurry Expect air dry weight gauge, add 10~14kg/adt alkali, 20~24kg/adt oxygen and 1.45~1.55kg/adt MgSO4, under the conditions of oxygen takes off temperature for 90~100 DEG C, continuous oxygen dealkylation reaction 40~60 minutes, oxygen takes off disposed slurry Kappa number 8 ~10, viscosity is in 900~1000mL/g；
S3, bleaching：By the de- obtained slurry feeding bleaching section of oxygen, using Q-OP-D-PO bleaching process, concrete technology is such as Under：
Q sections, by slurry air dry weight gauge, add 17~20kg/adt sulfuric acid and carry out acid treatment, Q segment process condition is reaction 70~80 DEG C of temperature, slurry concentration 12%, normal pressure, pH value 5~7；
OP sections, by slurry air dry weight gauge, add 5~7kg/adt NaOH, 4.5~5.5kg/adt H2O2With 8~ 10kg/adt oxygen, in H2O2In bleaching process, it will while occurring delignification and blanching effect, OP segment process conditions are anti- Answer 90~95 DEG C of temperature, slurry concentration 12%, pressure 400kPa, pH value 9.5~10.5；
D sections, by slurry air dry weight gauge, add 11~13kg/adt CLO2With 1~2kg/adt NaOH, D segment process Condition is 75~80 DEG C of reaction temperature, slurry concentration 12%, normal pressure, pH value 3.5~4.0；
PO sections, by slurry air dry weight gauge, add 5~7kg/adt NaOH, 10~12kg/adt H2O2With 1~3kg/ Adt oxygen, PO segment process condition be 90~100 DEG C of reaction temperature, slurry concentration 12%, pressure 400kPa, pH value 10.5~ 11；
The soft bamboo pulp whiteness of after bleaching is bleached in 84~87%ISO, viscosity is in 700~800mL/g.
Further, in the step S1, the alkali of addition is NaOH, and the digesting assistant of addition is Amazon Chemical Co., Ltd. The product Amisperse AP8180 or graceful laboratory chemical industry (Shanghai) Co., Ltd. product BUSPEESE 2810 of Bark.
Further, in the step S2, the alkali of addition is NaOH, and concentration is 150g/l.
Compared with prior art, what the present invention was provided, which is exclusively used in paper for daily use, improves the bleached bamboo pulp preparation method of feel, Taken off and blanching step including boiling, oxygen, by the technological parameter in the technological parameter in each step particularly boiling step It is adjusted, such as adjustment boiling temperature and alkali charge, effectively reduces boiling Kappa number, and makes under boiling disposed slurry viscosity slightly has Drop, and its physical index is held essentially constant, while boiling temperature control is below lignin glass transition temperature, if temperature exceedes glass Glass temperature, then the lignin softened, which can be attached to after fiber surface, cooling, forms glassy lignin coating, is easily difficult to fiber Fibrillating；Oxygen is de- using two sections of Extended Delignification techniques, and lignin generation degraded, oxidation, demethoxylation are reacted, lignin is realized Softening and removing, while carry out promotion frotation.So as to reduce the stiff degree of bamboo pulp fiber, obtain bamboo pulp fiber and produce forever Long property softening, finally giving a kind of paper for daily use that is exclusively used in improves the soft bamboo pulp of bleaching of feel.
The present invention, which also provides a kind of paper for daily use that is exclusively used in, improves the bleached bamboo pulp of feel, and the bleached bamboo pulp is according to foregoing Be exclusively used in paper for daily use improve feel bleached bamboo pulp preparation method be made.
Compared with prior art, what the present invention was provided, which is exclusively used in paper for daily use, improves the bleached bamboo pulp of feel, its every thing Reason index is held essentially constant compared with conventional bleached bamboo pulp, reaches state quality standard high-class product；And bleached bamboo pulp with it is other After slurry mixing, the paper for daily use produced has preferable feel, and its flexibility and comfortableness all become more preferable.
Embodiment
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, below will The present invention is expanded on further.
In the present invention, oven dry weight refers to moisture free fibrous raw material weight, oven dry weight=tablet gross weight × (1- tablet moisture content percentage)；Air-dry weight refers to the fibrous raw material weight containing 10% moisture, air-dry weight=oven dry weight ÷ (1-10%)；Q-OP-D-PO, wherein Q are chelating agent (such as DTPA, EDTA), and O is oxygen (O2), P is hydrogen peroxide (H2O2), D is chlorine dioxide (ClO2)；OP represents oxygen (O2) based on, hydrogen peroxide (H2O2) supplemented by；PO represents hydrogen peroxide (H2O2) be It is main, oxygen (O2) supplemented by.
The present invention, which provides a kind of paper for daily use that is exclusively used in, improves the bleached bamboo pulp preparation method of feel, comprises the following steps：
S1, boiling：By the bamboo material section feeding boiling vessel got ready, using low temperature double tower continuous steaming-boiling technology, temperature control exists Below lignin glass transition temperature, if temperature exceedes glass transition temperature, the lignin softened can be attached to shape after fiber surface, cooling Glassing lignin coating, easily makes fiber be difficult to fibrillating；By bamboo material section OD wt. basis, 21.5~22.5% are added Alkali, sulphidity 21~23%, key reaction is the sulfonation of lignin, and sulfonic group replaces after the hydroxyl in lignin structure, in lignin point Strong hydrophilicity group is introduced in son, lignin is softened and is removed, so that fiber permanently softens；Add 0.98~1.02kg/ Adt digesting assistants, the digesting assistant is used for the infiltration for accelerating boiling chemicals, is 145~148 DEG C of conditions in boiling temperature Under, continuously cooking 5~6 hours, thick slurry Kappa number is 14~17 after boiling, and viscosity is in 1100~1200mL/g；
S2, oxygen take off：The coarse particles that boiling is obtained send into oxygen reaction tower, using two sections of Extended Delignification techniques, by lignin Generation degraded, oxidation, demethoxylation reaction, realize the softening and removing of lignin, while carrying out promotion frotation；By coarse particles Air dry weight gauge, adds the MgSO of 10~14kg/adt alkali, 20~24kg/adt oxygen and 1.45~1.55kg/adt4, Under the conditions of oxygen takes off temperature for 90~100 DEG C, continuous oxygen is de- 40~60 minutes, and oxygen takes off disposed slurry Kappa number 8~10, and viscosity exists 900~1000mL/g；
S3, bleaching：By the de- obtained slurry feeding bleaching section of oxygen, using Q-OP-D-PO bleaching process, concrete technology is such as Under：
Q sections, by slurry air dry weight gauge, add 17~20kg/adt sulfuric acid and carry out acid treatment, to reduce transition in slurry The content of metal, the harmful transition metal of the removing overwhelming majority, prevents the decomposition of bleaching chemical hydrogen peroxide, Q segment process bars Part is 70~80 DEG C of reaction temperature, slurry concentration 12%, normal pressure, pH value 5~7；
OP sections, by slurry air dry weight gauge, add 5~7kg/adt NaOH, 4.5~5.5kg/adt H2O2With 8~ 10kg/adt oxygen, in H2O2In bleaching process, it will while occurring delignification and blanching effect, taken off by being carried out continuously oxygen Lignin reaction, oxygen contribute to increase whiteness, OP segment process condition be 90~95 DEG C of reaction temperature, slurry concentration 12%, pressure 400kPa, pH value 9.5~10.5；
D sections, by slurry air dry weight gauge, add 11~13kg/adt CLO2With 1~2kg/adt NaOH, pass through CLO2 Bleached, to remove remaining lignin and it is decolourized, so as to largely improve pulp brightness, D segment process condition is reaction temperature 75~80 DEG C of degree, slurry concentration 12%, normal pressure, pH value 3.5~4.0；
PO sections, by slurry air dry weight gauge, add 5~7kg/adt NaOH, 10~12kg/adt H2O2With 1~3kg/ Adt oxygen, in H2O2In bleaching process, it will while occur delignification and blanching effect, while slurry yellowing is prevented, PO sections Process conditions are 90~100 DEG C of reaction temperature, slurry concentration 12%, pressure 400kPa, pH value 10.5~11；
The soft bamboo pulp whiteness of after bleaching is bleached in 84~87%ISO, viscosity is in 700~800mL/g.
As specific embodiment, in the step S1, the alkali of addition is NaOH, and the digesting assistant of addition is Amazon chemical industry The Co., Ltd product Amisperse AP8180 or graceful laboratory chemical industry (Shanghai) Co., Ltd. product BUSPEESE of Bark 2810。
As specific embodiment, in the step S2, the alkali of addition is NaOH, concentration 150g/l.
Compared with prior art, what the present invention was provided, which is exclusively used in paper for daily use, improves the bleached bamboo pulp preparation method of feel, Taken off and blanching step including boiling, oxygen, by the technological parameter in the technological parameter in each step particularly boiling step It is adjusted, such as adjustment boiling temperature and alkali charge, effectively reduces boiling Kappa number (being in the prior art 18~20), and make Boiling disposed slurry viscosity (being in the prior art 800~900mL/g) is declined slightly, and its physical index is held essentially constant, together When boiling temperature control below lignin glass transition temperature, if temperature exceedes glass transition temperature, the lignin softened can be attached to Glassy lignin coating is formed after fiber surface, cooling, easily fiber is difficult to fibrillating；Oxygen is de- using the de- wood of two sections of depth Plain technique, occurs degraded, oxidation, demethoxylation reaction by lignin, realizes the softening and removing of lignin, while carrying out promotion fiber Dissociation.So as to reduce the stiff degree of bamboo pulp fiber, obtain bamboo pulp fiber and produce permanent softening, finally give one kind and be exclusively used in life Applying flexibly paper improves the soft bamboo pulp of bleaching of feel.
The present invention, which also provides a kind of paper for daily use that is exclusively used in, improves the bleached bamboo pulp of feel, and the bleached bamboo pulp is according to foregoing Be exclusively used in paper for daily use improve feel bleached bamboo pulp preparation method be made.
Compared with prior art, what the present invention was provided, which is exclusively used in paper for daily use, improves the bleached bamboo pulp of feel, its every thing Reason index is held essentially constant compared with conventional bleached bamboo pulp, reaches state quality standard high-class product；And bleached bamboo pulp with it is other After slurry mixing, the paper for daily use produced has preferable feel, and its flexibility and comfortableness all become more preferable.
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to skill of the invention Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this Among the right of invention.

Claims (4)

1. a kind of paper for daily use that is exclusively used in improves the bleached bamboo pulp preparation method of feel, it is characterised in that comprise the following steps：
S1, boiling：By the bamboo material section feeding boiling vessel got ready, using low temperature double tower continuous steaming-boiling technology, by bamboo material section over dry weight Gauge, the alkali of addition 21.5~22.5%, sulphidity 21~23% adds 0.98~1.02kg/adt digesting assistants, is steaming Temperature is boiled under the conditions of 145~148 DEG C, continuously cooking 5~6 hours slightly starches Kappa number 14~17, viscosity is 1100 after boiling ~1200mL/g；
S2, oxygen take off：The coarse particles that boiling is obtained send into oxygen reaction tower, using two sections of Extended Delignification techniques, by coarse particles wind Dry weight, adds the MgSO of 10~14kg/adt alkali, 20~24kg/adt oxygen and 1.45~1.55kg/adt4, Oxygen takes off temperature under the conditions of 90~100 DEG C, continuous oxygen dealkylation reaction 40~60 minutes, oxygen takes off disposed slurry Kappa number in 8~10, viscosity In 900~1000mL/g；
S3, bleaching：By the de- obtained slurry feeding bleaching section of oxygen, using Q-OP-D-PO bleaching process, concrete technology is as follows：
Q sections, by slurry air dry weight gauge, add 17~20kg/adt sulfuric acid and carry out acid treatment, Q segment process condition is reaction temperature 70~80 DEG C, slurry concentration 12%, normal pressure, pH value 5~7；
OP sections, by slurry air dry weight gauge, add 5~7kg/adt NaOH, 4.5~5.5kg/adt H2O2With 8~10kg/ Adt oxygen, in H2O2In bleaching process, it will while occurring delignification and blanching effect, OP segment process condition is reaction temperature 90~95 DEG C, slurry concentration 12%, pressure 400kPa, pH value 9.5~10.5；
D sections, by slurry air dry weight gauge, add 11~13kg/adt CLO2With 1~2kg/adt NaOH, D segment process conditions For 75~80 DEG C of reaction temperature, slurry concentration 12%, normal pressure, pH value 3.5~4.0；
PO sections, by slurry air dry weight gauge, add 5~7kg/adt NaOH, 10~12kg/adt H2O2With 1~3kg/adt Oxygen, PO segment process condition be 90~100 DEG C of reaction temperature, slurry concentration 12%, pressure 400kPa, pH value 10.5~11；
The soft bamboo pulp whiteness of after bleaching is bleached in 84~87%ISO, viscosity is in 700~800mL/g.
2. the paper for daily use according to claim 1 that is exclusively used in improves the bleached bamboo pulp preparation method of feel, it is characterised in that In the step S1, the alkali of addition is NaOH, and the digesting assistant of addition is Amazon Chemical Co., Ltd. product Amisperse The AP8180 or graceful laboratory chemical industry (Shanghai) Co., Ltd. product BUSPEESE 2810 of Bark.
3. the paper for daily use according to claim 1 that is exclusively used in improves the bleached bamboo pulp preparation method of feel, it is characterised in that In the step S2, the alkali of addition is NaOH, and concentration is 150g/l.
4. a kind of paper for daily use that is exclusively used in improves the bleached bamboo pulp of feel, it is characterised in that the bleached bamboo pulp will according to right The bleached bamboo pulp preparation method for being exclusively used in paper for daily use improvement feel any one of 1~3 is asked to be made.
CN201710413483.1A 2017-06-05 2017-06-05 A kind of paper for daily use that is exclusively used in improves bleached bamboo pulp of feel and preparation method thereof Active CN107022922B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111778753A (en) * 2020-07-06 2020-10-16 泰盛(江西)生活用品有限公司 Natural color bamboo pulp for improving hand feeling of natural color household paper and preparation method thereof
CN112359631A (en) * 2020-10-29 2021-02-12 陕西科技大学 Method for bleaching chlorine-free bamboo pulp
CN114687234A (en) * 2022-03-31 2022-07-01 华南理工大学 Method for preparing fluff pulp by using bamboos and fluff pulp prepared by method
CN114855496A (en) * 2022-04-15 2022-08-05 泰盛科技（集团）股份有限公司 Bamboo fluff pulp preparing process and product

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103726377A (en) * 2014-01-21 2014-04-16 四川理工学院 Clean pulping method for low-polymerization degree bamboo pulp
CN104294694A (en) * 2014-09-30 2015-01-21 广西大学 Chlorine dioxide bleaching method of pre-extracted bamboo pulp
CN104790241A (en) * 2015-05-12 2015-07-22 四川理工学院 Clean preparing method for high-purity and high-quality bamboo dissolving pulp
CN104963229A (en) * 2015-07-15 2015-10-07 重庆理文造纸有限公司 Bleaching process of bamboo dissoluble pulp
WO2016182867A1 (en) * 2015-05-14 2016-11-17 Fmc Corporation Method of making bleached microcrystalline cellulose

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103726377A (en) * 2014-01-21 2014-04-16 四川理工学院 Clean pulping method for low-polymerization degree bamboo pulp
CN104294694A (en) * 2014-09-30 2015-01-21 广西大学 Chlorine dioxide bleaching method of pre-extracted bamboo pulp
CN104790241A (en) * 2015-05-12 2015-07-22 四川理工学院 Clean preparing method for high-purity and high-quality bamboo dissolving pulp
WO2016182867A1 (en) * 2015-05-14 2016-11-17 Fmc Corporation Method of making bleached microcrystalline cellulose
CN104963229A (en) * 2015-07-15 2015-10-07 重庆理文造纸有限公司 Bleaching process of bamboo dissoluble pulp

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
陈盛全: ""本色竹浆纤维生活用纸"", 《造纸科学与技术》 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111778753A (en) * 2020-07-06 2020-10-16 泰盛(江西)生活用品有限公司 Natural color bamboo pulp for improving hand feeling of natural color household paper and preparation method thereof
CN112359631A (en) * 2020-10-29 2021-02-12 陕西科技大学 Method for bleaching chlorine-free bamboo pulp
CN114687234A (en) * 2022-03-31 2022-07-01 华南理工大学 Method for preparing fluff pulp by using bamboos and fluff pulp prepared by method
CN114855496A (en) * 2022-04-15 2022-08-05 泰盛科技（集团）股份有限公司 Bamboo fluff pulp preparing process and product
CN114855496B (en) * 2022-04-15 2023-10-20 泰盛科技（集团）股份有限公司 Bamboo fluff pulp preparation process and product thereof

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