CN106758488A - A kind of preparation method of high-intensity water absorbent bamboo paper - Google Patents
A kind of preparation method of high-intensity water absorbent bamboo paper Download PDFInfo
- Publication number
- CN106758488A CN106758488A CN201611113825.XA CN201611113825A CN106758488A CN 106758488 A CN106758488 A CN 106758488A CN 201611113825 A CN201611113825 A CN 201611113825A CN 106758488 A CN106758488 A CN 106758488A
- Authority
- CN
- China
- Prior art keywords
- paper
- preparation
- intensity
- bamboo
- water absorbent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F251/00—Macromolecular compounds obtained by polymerising monomers on to polysaccharides or derivatives thereof
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/21—Macromolecular organic compounds of natural origin; Derivatives thereof
- D21H17/24—Polysaccharides
- D21H17/28—Starch
-
- 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
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Paper (AREA)
Abstract
The invention provides a kind of preparation method of high-intensity water absorbent bamboo paper, comprise the following steps：(1) slurrying：By bamboo fibre slurry in pulping at 40 50 DEG C, crude fibre is removed through fluffer, obtain the fibre bundle of granularity≤1mm, to alkali regulation PH to 7.0 7.5 is added in slurry, add water absorbing agent, then uniform sizing material is obtained using disc mill mixing mashing；(2) into paper：Step (1) gained uniform sizing material is manufactured paper with pulp, squeezed, dried through punching slurry, online, press polish, batch, cut and pack prepared required high-intensity water absorbent bamboo paper；The water absorbing agent has cross-linked network structure, and Surface coating has beta cyclodextrin.The water absorbing agent of modified starch preparation is added in bamboo paper prepared by the present invention, there is good compatibility with bamboo pulp, evenness is higher, and water absorption rate is high, absorption speed is fast, while bamboo paper intensity can be improved.
Description
Technical field
It is the invention belongs to pulp technology for making paper, and in particular to a kind of preparation method of bamboo paper more particularly to a kind of high-strength
The preparation method of degree water suction bamboo paper.
Background technology
The raw material of pulping and paper-making have wood fiber raw material, non-wood fibrous raw material, waste paper and non-plant fibre raw material this four
Class.Bamboo belongs to non-wood fibrous raw material therein.Main flow raw material or timber used by current China pulp and paper industry, but
In view of China is always at timber state in short supply, and because bamboo wood has a variety of superiority, therefore bamboo fibre papermaking has very
Big development potentiality.
Water absorbing agent is added in bamboo pulp can improve the water absorbing properties of bamboo paper, but the addition of water absorbing agent would generally influence bamboo
The intensity of paper is starched, and existing water absorbing agent absorption speed and water absorption rate need further raising.
The content of the invention
The invention provides a kind of preparation method of high-intensity water absorbent bamboo paper, added obtained in modified starch in bamboo pulp
Water absorbing agent, obtained bamboo paper evenness is higher, and water absorption rate and absorption speed are high, and can improve bamboo paper intensity.
The technical proposal for solving the technical problem of the invention is：
The preparation method of high-intensity water absorbent bamboo paper, comprises the following steps：
(1) slurrying：By bamboo fibre slurry in pulping at 40-50 DEG C, crude fibre is removed through fluffer, obtain granularity≤1mm
Fibre bundle, to alkali regulation PH to 7.0-7.5 is added in slurry, add water absorbing agent, then be obtained using disc mill mixing mashing equal
Homogenate material；
(2) into paper：Step (1) gained uniform sizing material is manufactured paper with pulp, squeezed, dried through punching slurry, online, press polish, batched, cut
High-intensity water absorbent bamboo paper needed for being obtained with packing；
The preparation method of the water absorbing agent comprises the following steps：
A be added to the water for cornstarch by (), and in after 65-80 DEG C of gelatinization 30-50 minutes, to being continuously added in reaction vessel
20wt% acrylic acid-aqueous solution and initiator, after insulation reaction 2-4 hours, add tertiary amine, after continuing to react 0.5-1 hours,
Room temperature is cooled to, the solution A containing acrylic graft-modified starch is obtained；Initiator triggers starch to produce Starch Free Radicals, and with third
There is polymerisation in olefin(e) acid free radical, acrylic graft-modified starch is obtained, and add tertiary amine, can be sent out with acrylic acid carboxyl
Raw condensation reaction, so as to form cross-linked network structure, increases the intensity and water-retaining property of water absorbing agent.
(b) in step (a) resulting solution A add the beta-schardinger dextrin aqueous solution, under 800-1000 revs/min of mixing speed
After stirring 20-30 minutes, gel refrigeration drying is crushed, sieve to obtain required high intensity high water absorbing capacity water absorbing agent.Beta-schardinger dextrin energy
The surface of Starch graft copolymer coal-water is coated on, certain core shell structure is formed, so as to further improve the water-retaining property of water absorbing agent.β-ring paste
Spermatophore cover during mixing speed and the time be also the key factor for influenceing degree of being evenly coated and molecular chain length, mixing speed
Cross slow, mixing time is too short, then degree of being evenly coated is poor, water absorbing agent dispersion is uneven, easily reunite；Mixing speed is too fast, during stirring
Between it is long, then be easily caused breaking polymer chains, water absorbing agent intensity decreases.
Preferably, alkali described in step (1) be potassium hydroxide, NaOH, sodium acid carbonate or sodium carbonate at least
It is a kind of.
Preferably, tertiary amine described in step (a) is diethylenetriamine or three (2- aminoethyls) amine, water solubility need to be selected
Tertiary amine.
Preferably, initiator described in step (a) is ammonium persulfate or potassium peroxydisulfate.
Preferably, the mass ratio of cornstarch described in step (a) and water is 1:10-15.
Preferably, the mass ratio of cornstarch described in step (a), the acrylic acid-aqueous solution, initiator and tertiary amine is
1：1.25-2.5:0.03-0.05:0.1-0.3.
Preferably, the mass concentration of the beta-schardinger dextrin aqueous solution described in step (b) is 15-20%.
Preferably, the mass ratio of solution A described in step (b) and the beta-schardinger dextrin aqueous solution is 1:3-5.
Beneficial effects of the present invention are：
1st, present invention water absorbing agent obtained in addition modified starch in bamboo pulp, has good compatibility with bamboo pulp, made
The evenness for obtaining bamboo paper is higher, and water absorption rate is high, and absorption speed is fast, while bamboo paper intensity can be improved.
2nd, the present invention adds ternary amine crosslinker during water absorbing agent is prepared so that water absorbing agent forms cross-linked network knot
Structure, water absorption rate is higher, and water-retaining property more preferably, finally embeds acrylic graft-modified starch, so as to further carry using beta-schardinger dextrin
The water-retaining property of high water absorbent.
Specific embodiment
Below by specific embodiment, technical scheme is described in further detail.
Embodiment 1
(1) by 10g cornstarch add 100g water in, and in 70 DEG C gelatinization 40 minutes after, in reaction vessel continue plus
Enter 20g 20wt% acrylic acid-aqueous solution and 0.3g potassium peroxydisulfates, insulation reaction adds 2g diethylenetriamines after 3 hours, continues
After reaction 1 hour, room temperature is cooled to, obtains the solution A containing acrylic graft-modified starch；
(2) take in 50g solution As addition there-necked flask, the 200g 15wt% beta-schardinger dextrin aqueous solution is added, in 800 revs/min
After being stirred 30 minutes under clock mixing speed, gel is taken out freeze-dried, crushed, sieve to obtain 7.8g water absorbing agents；
(3) 100g bamboo fibres slurry is removed into crude fibre in pulping at 40 DEG C through fluffer, obtains the fibre of granularity≤1mm
Dimension beam, to potassium hydroxide regulation PH to 7.0 is added in slurry, adds 3g water absorbing agents, then be obtained using disc mill mixing mashing equal
Homogenate material；
(4) step (3) gained uniform sizing material manufactured paper with pulp, squeezed, is dried through punching slurry, online, press polish, batched, cut and beat
Pack to obtain required high-intensity water absorbent bamboo paper.
Embodiment 2
(1) by 10g cornstarch add 120g water in, and in 65 DEG C gelatinization 50 minutes after, in reaction vessel continue plus
Enter 12.5g 20wt% acrylic acid-aqueous solution and 0.1g potassium peroxydisulfates, insulation reaction adds 1g diethylenetriamines after 2 hours, after
After continuous reaction 0.5 hour, room temperature is cooled to, obtains the solution A containing acrylic graft-modified starch；
(2) take in 50g solution As addition there-necked flask, the 150g 20wt% beta-schardinger dextrin aqueous solution is added, in 900 revs/min
After being stirred 25 minutes under clock mixing speed, gel is taken out freeze-dried, crushed, sieve to obtain 8.2g water absorbing agents；
(3) 100g bamboo fibres slurry is removed into crude fibre in pulping at 45 DEG C through fluffer, obtains the fibre of granularity≤1mm
Dimension beam, to potassium hydroxide regulation PH to 7.5 is added in slurry, adds 5g water absorbing agents, then be obtained using disc mill mixing mashing equal
Homogenate material；
(4) step (3) gained uniform sizing material manufactured paper with pulp, squeezed, is dried through punching slurry, online, press polish, batched, cut and beat
Pack to obtain required high-intensity water absorbent bamboo paper.
Embodiment 3
(1) by 10g cornstarch add 150g water in, and in 80 DEG C gelatinization 30 minutes after, in reaction vessel continue plus
Enter 25g 20wt% acrylic acid-aqueous solution and 0.2g ammonium persulfates, insulation reaction adds 3g tri- (2- aminoethyls) amine after 4 hours,
After continuing to react 0.8 hour, room temperature is cooled to, obtains the solution A containing acrylic graft-modified starch；
(2) take in 50g solution As addition there-necked flask, the 250g 18wt% beta-schardinger dextrin aqueous solution is added, in 1000 revs/min
After being stirred 20 minutes under clock mixing speed, gel is taken out freeze-dried, crushed, sieve to obtain 7.5g water absorbing agents；
(3) 100g bamboo fibres slurry is removed into crude fibre in pulping at 50 DEG C through fluffer, obtains the fibre of granularity≤1mm
Dimension beam, to potassium hydroxide regulation PH to 7.2 is added in slurry, adds 4g water absorbing agents, then be obtained using disc mill mixing mashing equal
Homogenate material；
(4) step (3) gained uniform sizing material manufactured paper with pulp, squeezed, is dried through punching slurry, online, press polish, batched, cut and beat
Pack to obtain required high-intensity water absorbent bamboo paper.
Comparative example 1
(1) by 10g cornstarch add 100g water in, and in 70 DEG C gelatinization 40 minutes after, in reaction vessel continue plus
Enter 20g 20wt% acrylic acid-aqueous solution and 0.3g potassium peroxydisulfates, insulation reaction is cooled to room temperature, obtains containing acrylic acid after 4 hours
The solution A of graft modified starch；
(2) take in 50g solution As addition there-necked flask, the 200g 15wt% beta-schardinger dextrin aqueous solution is added, in 800 revs/min
After being stirred 30 minutes under clock mixing speed, gel is taken out freeze-dried, crushed, sieve to obtain 7.4g water absorbing agents；
(3) 100g bamboo fibres slurry is removed into crude fibre in pulping at 40 DEG C through fluffer, obtains the fibre of granularity≤1mm
Dimension beam, to potassium hydroxide regulation PH to 7.0 is added in slurry, adds 3g water absorbing agents, then be obtained using disc mill mixing mashing equal
Homogenate material；
(4) step (3) gained uniform sizing material manufactured paper with pulp, squeezed, is dried through punching slurry, online, press polish, batched, cut and beat
Pack to obtain required high-intensity water absorbent bamboo paper.
Comparative example 2
(1) by 10g cornstarch add 100g water in, and in 70 DEG C gelatinization 40 minutes after, in reaction vessel continue plus
Enter 20g 20wt% acrylic acid-aqueous solution and 0.3g potassium peroxydisulfates, insulation reaction adds 2g diethylenetriamines after 3 hours, continues
After reaction 1 hour, room temperature is cooled to, obtains the solution A containing acrylic graft-modified starch, solution A filtered, freeze-drying, powder
Broken, sieve to obtain 7.2g water absorbing agents；
(2) 100g bamboo fibres slurry is removed into crude fibre in pulping at 40 DEG C through fluffer, obtains the fibre of granularity≤1mm
Dimension beam, to potassium hydroxide regulation PH to 7.0 is added in slurry, adds 3g water absorbing agents, then be obtained using disc mill mixing mashing equal
Homogenate material；
(3) step (2) gained uniform sizing material manufactured paper with pulp, squeezed, is dried through punching slurry, online, press polish, batched, cut and beat
Pack to obtain required high-intensity water absorbent bamboo paper.
The performance measurement result of embodiment 1-3 and comparative example 1-2 gained bamboo papers is shown in Table 1：
Table 1：
It can be seen from Table 1 that, the addition of ternary amine crosslinker and beta-schardinger dextrin can improve the water absorption rate of bamboo paper and resist
Tearing strength.
Embodiment described above is a kind of preferably scheme of the invention, not makees any formal to the present invention
Limitation, also has other variants and remodeling on the premise of without departing from the technical scheme described in claim.
Claims (9)
1. a kind of preparation method of high-intensity water absorbent bamboo paper, it is characterised in that the preparation method comprises the following steps：
(1) slurrying：By bamboo fibre slurry in pulping at 40-50 DEG C, crude fibre is removed through fluffer, obtain the fibre of granularity≤1mm
Dimension beam, to addition alkali regulation PH to 7.0-7.5 in slurry, adds water absorbing agent, then be homogenized using disc mill mixing mashing is prepared
Material；
(2) into paper：Step (1) gained uniform sizing material is manufactured paper with pulp, squeezed, dried through punching slurry, online, press polish, batch, cut and
Packing is obtained required high-intensity water absorbent bamboo paper；
The preparation method of the water absorbing agent comprises the following steps：
A be added to the water for cornstarch by (), and in after 65-80 DEG C of gelatinization 30-50 minutes, to being continuously added in reaction vessel
20wt% acrylic acid-aqueous solution and initiator, after insulation reaction 2-4 hours, add tertiary amine, after continuing to react 0.5-1 hours,
Room temperature is cooled to, the solution A containing acrylic graft-modified starch is obtained；
B () stirs to the beta-schardinger dextrin aqueous solution is added in step (a) resulting solution A under 800-1000 revs/min of mixing speed
After mixing 20-30 minutes, gel refrigeration drying is crushed, sieve to obtain required high intensity high water absorbing capacity water absorbing agent.
2. the preparation method of high-intensity water absorbent bamboo paper as claimed in claim 1, it is characterised in that alkali is described in step (1)
At least one in potassium hydroxide, NaOH, sodium acid carbonate or sodium carbonate.
3. the preparation method of high-intensity water absorbent bamboo paper as claimed in claim 1, it is characterised in that absorbed water described in step (1)
Agent is 3-5 with the mass ratio of bamboo fibre slurry:100.
4. the preparation method of high-intensity water absorbent bamboo paper as claimed in claim 1, it is characterised in that ternary described in step (a)
Amine is diethylenetriamine or three (2- aminoethyls) amine.
5. the preparation method of high-intensity water absorbent bamboo paper as claimed in claim 1, it is characterised in that trigger described in step (a)
Agent is ammonium persulfate or potassium peroxydisulfate.
6. the preparation method of high-intensity water absorbent bamboo paper as claimed in claim 1, it is characterised in that corn described in step (a)
The mass ratio of starch and water is 1:10-15.
7. the preparation method of high-intensity water absorbent bamboo paper as claimed in claim 1, it is characterised in that corn described in step (a)
The mass ratio of starch, the acrylic acid-aqueous solution, initiator and tertiary amine is 1：1.25-2.5:0.03-0.05:0.1-0.3.
8. the preparation method of high-intensity water absorbent bamboo paper as claimed in claim 1, it is characterised in that β-ring described in step (b)
The mass concentration of dextrin in aqueous solution is 15-20%.
9. the preparation method of high-intensity water absorbent bamboo paper as claimed in claim 1, it is characterised in that solution A described in step (b)
It is 1 with the mass ratio of the beta-schardinger dextrin aqueous solution:3-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611113825.XA CN106758488B (en) | 2016-12-07 | 2016-12-07 | A kind of preparation method of high-intensity water absorbent bamboo paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611113825.XA CN106758488B (en) | 2016-12-07 | 2016-12-07 | A kind of preparation method of high-intensity water absorbent bamboo paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106758488A true CN106758488A (en) | 2017-05-31 |
| CN106758488B CN106758488B (en) | 2019-01-08 |
Family
ID=58878527
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611113825.XA Active CN106758488B (en) | 2016-12-07 | 2016-12-07 | A kind of preparation method of high-intensity water absorbent bamboo paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106758488B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108004837A (en) * | 2017-11-27 | 2018-05-08 | 郑艳 | A kind of preparation method of biodegradation type moisturizing vegetables packaging fibrous paper |
| CN110881915A (en) * | 2019-10-30 | 2020-03-17 | 李宏江 | Method for manufacturing and using eraser |
| CN112064416A (en) * | 2020-09-04 | 2020-12-11 | 江苏好健康新材料有限公司 | Multifunctional kitchen odor-removing dust-free paper and manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1155250A (en) * | 1994-08-01 | 1997-07-23 | 伦纳德·珀尔斯坦恩 | High performance superabsorbent agent and absorbent devices with said agent |
| WO2006022960A1 (en) * | 2004-08-10 | 2006-03-02 | Kimberly-Clark Worldwide, Inc. | Absorbent articles comprising a bodily exudate modifying agent and a film-forming skin care formulation |
| CN102372892A (en) * | 2010-08-17 | 2012-03-14 | 上海众伟生化有限公司 | Starch grafting acrylic acid compound water-retaining agent and production method thereof |
| CN104448660A (en) * | 2014-12-25 | 2015-03-25 | 安徽帝元生物科技有限公司 | Superabsorbent resin as well as preparation method and applications thereof |
| CN104499330A (en) * | 2014-11-03 | 2015-04-08 | 广西南宁至简至凡科技咨询有限公司 | Manufacture technology for bamboo-pulp paper with strong water adsorption property |
-
2016
- 2016-12-07 CN CN201611113825.XA patent/CN106758488B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1155250A (en) * | 1994-08-01 | 1997-07-23 | 伦纳德·珀尔斯坦恩 | High performance superabsorbent agent and absorbent devices with said agent |
| WO2006022960A1 (en) * | 2004-08-10 | 2006-03-02 | Kimberly-Clark Worldwide, Inc. | Absorbent articles comprising a bodily exudate modifying agent and a film-forming skin care formulation |
| CN102372892A (en) * | 2010-08-17 | 2012-03-14 | 上海众伟生化有限公司 | Starch grafting acrylic acid compound water-retaining agent and production method thereof |
| CN104499330A (en) * | 2014-11-03 | 2015-04-08 | 广西南宁至简至凡科技咨询有限公司 | Manufacture technology for bamboo-pulp paper with strong water adsorption property |
| CN104448660A (en) * | 2014-12-25 | 2015-03-25 | 安徽帝元生物科技有限公司 | Superabsorbent resin as well as preparation method and applications thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108004837A (en) * | 2017-11-27 | 2018-05-08 | 郑艳 | A kind of preparation method of biodegradation type moisturizing vegetables packaging fibrous paper |
| CN110881915A (en) * | 2019-10-30 | 2020-03-17 | 李宏江 | Method for manufacturing and using eraser |
| CN112064416A (en) * | 2020-09-04 | 2020-12-11 | 江苏好健康新材料有限公司 | Multifunctional kitchen odor-removing dust-free paper and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106758488B (en) | 2019-01-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6268385B2 (en) | Waterproof recycled paper and production method thereof | |
| FI126842B (en) | A novel process for preparing microcellulose | |
| CN101451320B (en) | Grass type low brightness pulp, preparation method and use thereof | |
| CN101698985B (en) | Method for manufacturing art paper with high content of mechanical pulp and art paper manufactured therefrom | |
| CN103755816B (en) | A kind of preparation method of sodium carboxymethylcellulose | |
| CN102121208B (en) | Method for preparing papermaking dry strengthening agent | |
| CN111826991A (en) | Production process of high-strength corrugated paper | |
| CN106758488A (en) | A kind of preparation method of high-intensity water absorbent bamboo paper | |
| CN108341912A (en) | A kind of preparation method of gluing reinforcing agent | |
| CN103821022A (en) | Needle pulp and broad leaf pulp pretreatment method with neutral cellulase | |
| KR101457470B1 (en) | Paper with high dry strength containing hemicellulose and producing method thereof | |
| CN103806319A (en) | Method for producing high-intensity corrugated body paper from waste paper | |
| CN103773747A (en) | Surface sizing special enzyme and preparation method thereof | |
| CN104452467B (en) | A kind of slim natural color food wrapper and preparation method thereof | |
| CN102277786A (en) | Preparation method for double-sided gummed paper or electrostatic copy paper | |
| CN101760982B (en) | Mixed pulp with high bulk and paper having same | |
| CN109235125A (en) | Paper for daily use and preparation method thereof | |
| CN105951492A (en) | Method for making non-heat-sealing type natural-color tea filter paper with pure wood pulp | |
| CN110219208B (en) | Production process of efficient kinking folding type candy packaging base paper | |
| CN104452465A (en) | Unbleached tissue packing paper and production method thereof | |
| CN101760983B (en) | Mixed pulp and paper with the same | |
| CN105237648B (en) | A kind of glyoxal cross-linked polymer is modified high amylopectin starch and its preparation method and application | |
| CN102251433A (en) | Method for preparing paper | |
| CN106702799A (en) | Method for preparing dissolving wood pulp for viscose fibers by modifying papermaking-grade wood pulp | |
| CN102532328A (en) | Starch pigment and preparation method thereof as well as coating and coated paper using the starch pigment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |