CN104131484A - Mechano-chemical method for preparing thin-layer paper - Google Patents
Mechano-chemical method for preparing thin-layer paper Download PDFInfo
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- CN104131484A CN104131484A CN201410329792.7A CN201410329792A CN104131484A CN 104131484 A CN104131484 A CN 104131484A CN 201410329792 A CN201410329792 A CN 201410329792A CN 104131484 A CN104131484 A CN 104131484A
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- pulp
- paper
- tissue paper
- layer paper
- agent solution
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Abstract
The invention discloses a mechano-chemical method for preparing thin-layer paper. According to the invention, paper pulp and chemical auxiliary agents are ground into fibrillated pulp; and through processes such as dehydration, shaping, pressing, drying, and the like, the thin-layer paper is obtained. The method has the advantages of simple operation process, low energy consumption, and high production efficiency. With the mechano-chemical method thin-layer paper preparation method, a synergistic effect of mechanical force, heat power and chemical power can be fully utilized, reaction activation energy can be reduced, and fiber fibrillation and thinning can be promoted. Mechanical strength is good, and thin-layer paper strength can be improved.
Description
Technical field
The invention belongs to the preparation field of tissue paper, be specifically related to a kind of method that mechanochemical method is prepared tissue paper.
Background technology
Tissue paper, papery is thin and soft, clear transparent, and waste paper is biodegradable, environmentally safe, thereby tool has been widely used, and can be used for the packagings such as food, medicine, fruit Saran wrap, leather shoes, handicraft.Tissue paper mainly comprises toilet paper, thin page wrapping paper, thin page glazed paper, invoice volume tissue paper, flat envelope, waxing paper, style paper body paper etc.
The current tissue paper of China is produced the demand that still can not meet paper consumption market, and a considerable amount of tissue papers still need import, and its one of the main reasons is that China's tissue paper production cost is high, yields poorly, and the intensity of paper is low.This is that energy consumption is high because making beating or defibrination process in current tissue paper production process are independent employing mechanical lapping, and production efficiency is low.Therefore how to reduce energy consumption, enhance productivity, the cost-saving production for tissue paper is most important.
Utilize abundant, the reproducible plant resources in occurring in nature source to prepare tissue paper through deep processing, can replace a large amount of household plastic such as polypropylene, polystyrene goods that use at present, solve increasingly serious " white pollution " problem.
Summary of the invention
The object of the invention is to based on the deficiencies in the prior art, provide a kind of mechanochemical method to prepare the method for tissue paper.The method operating process is simple, and energy consumption is low, and production efficiency is high.Paper pulp is under mechanical force and chemical effect, and the reactivity of fiber surface improves, and the activation energy of reaction reduces, and has promoted the fibrillating of fiber, and mechanical strength is good, is conducive to the raising of tissue paper intensity.
For achieving the above object, the present invention adopts following technical scheme:
Mechanochemical method is prepared a method for tissue paper, comprises the following steps:
(1) paper pulp is joined in compounding agent solution, make paper pulp fully wetting by compounding agent solution;
(2) mixture obtaining in step (1) is put into ultra-fine grinding mill, continuously grinding 30-150min, filters compounding agent solution after grinding, adds a large amount of water to wash, the slurry that obtains mixing;
(3) slurry obtaining in step (2) is added in sheet forming apparatus dewater, moulding, then squeeze, dry, obtain product.
Paper pulp described in step (1) is the one in wood pulp, straw pulp, bamboo pulp, cotton pulp.
Auxiliary agent described in step (1) is the one in lithium hydroxide, lithium chloride, N-methylmorpholine-N-oxide, DMA.
In step (1), the mass ratio of compounding agent solution and paper pulp is 1-5:1.
General principle of the present invention is to make full use of the mechanical force producing in mechanical lapping process to promote that pulp fiber surface exposes more hydroxyl, promote the fibrillating of fiber, simultaneously under the effect of chemical assistant, utilize the cooperative effect of the mechanical force, heating power and the chemical force effect that produce in process, make paper pulp fiber in chemical activity state, the reactivity of system is improved, and has accelerated the fibrillating process of paper pulp fiber.Under the acting in conjunction of chemical reagent and heating power, physicochemical property and the structure of fiber change, as cause the fracture of chemical bond, produce new surface etc., make fiber brooming, thereby have important function for the intensity that improves tissue paper.
remarkable advantage of the present invention:
The method that the present invention produced tissue paper has more originally improved production efficiency, has greatly shortened preparation time, has reduced energy consumption, has improved the intensity of tissue paper, and operating process is simple and cost is low.
Detailed description of the invention
The present invention further illustrates the present invention with the following example, but protection scope of the present invention is not limited to the following example.
Embodiment 1
Take 2g bamboo pulp (sulfate bamboo pulp is purchased from paper mill, Nan Ping), join 10g mass fraction and be in 10% lithium chloride solution, above-mentioned material is packed in ultra-fine grinding mill into continuously grinding 90min; Filter lithium chloride solution, add a large amount of water, filtering stock to pH value is 6-7; The slurry obtaining is added in sheet forming apparatus dewater, moulding, then, through squeezing, the operation such as dry, obtain tissue paper, its tensile strength reaches 60-90MPa.
Embodiment 2
Take 5g wood pulp (sulfate wood pulp is purchased from paper mill, Nan Ping), join 5g mass fraction and be in N-methylmorpholine-N-oxide (NMMO) aqueous solution of 70%, Ultrafine Grinding 60min, obtains cellulose/NMMO mixed liquor.Remove N-methylmorpholine-N-oxide water solution, add a large amount of water, filtering stock to pH value is 6-7.Slurry is added in sheet forming apparatus dewater, moulding, the operation such as then squeeze, be dried, form tissue paper, its tensile strength reaches 60-90MPa.
Embodiment 3
Take 10g straw pulp (sulfate bleaching straw pulp is purchased from paper mill, Nan Ping), join 10g mass fraction and be in 60% LiOH solution, above-mentioned material is packed in ultra-fine grinding mill into continuously grinding 120min.Add a large amount of water, remove the LiOH solution on upper strata, filtering stock to pH value is 6-7.Slurry is added in sheet forming apparatus dewater, moulding, through squeezing, the operation such as dry, make tissue paper, its tensile strength reaches 60-90MPa.
Embodiment 4
Take 5g cotton pulp (being purchased from paper mill, Nan Ping), join 5g mass fraction and be in 80% DMA solution, above-mentioned material is packed in Ultrafine Grinding pulverizing machine into continuously grinding 150min.Remove DMA solution, add a large amount of water, filtering stock to pH value is 6-7.Slurry dewaters in sheet forming apparatus, moulding, through squeezing, the operation such as dry, makes tissue paper, and its tensile strength reaches 60-90MPa.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to the present patent application the scope of the claims change and modify, and all should belong to covering scope of the present invention.
Claims (4)
1. mechanochemical method is prepared a method for tissue paper, it is characterized in that: comprise the following steps:
(1) paper pulp is joined in compounding agent solution, make paper pulp fully wetting by compounding agent solution;
(2) mixture obtaining in step (1) is put into ultra-fine grinding mill, continuously grinding 30-150min, filters compounding agent solution after grinding, adds a large amount of water to wash, the slurry that obtains mixing;
(3) slurry obtaining in step (2) is added in sheet forming apparatus dewater, moulding, then squeeze, dry, obtain product.
2. the method for preparing tissue paper according to a kind of mechanochemical method described in claim 1, is characterized in that: the paper pulp described in step (1) is the one in wood pulp, straw pulp, bamboo pulp, cotton pulp.
3. the method for preparing tissue paper according to a kind of mechanochemical method described in claim 1, is characterized in that: the auxiliary agent described in step (1) is the one in lithium hydroxide, lithium chloride, N-methylmorpholine-N-oxide, DMA.
4. prepare the method for tissue paper according to utilize mechanical force and chemical action described in claim 1, it is characterized in that: in step (1), the mass ratio of compounding agent solution and paper pulp is 1-5:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329792.7A CN104131484B (en) | 2014-07-11 | 2014-07-11 | A kind of mechanochemical method prepares the method for tissue paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329792.7A CN104131484B (en) | 2014-07-11 | 2014-07-11 | A kind of mechanochemical method prepares the method for tissue paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104131484A true CN104131484A (en) | 2014-11-05 |
| CN104131484B CN104131484B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410329792.7A Active CN104131484B (en) | 2014-07-11 | 2014-07-11 | A kind of mechanochemical method prepares the method for tissue paper |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004053224A1 (en) * | 2002-12-12 | 2004-06-24 | Stfi, Skogsindustrins Tekniska Forskningsinstitut Ab | Method for reducing the energy demand during refining of chemical pulp |
| CN101338533A (en) * | 2008-07-31 | 2009-01-07 | 杨清国 | Method for producing toilet paper |
| CN101492896A (en) * | 2009-03-03 | 2009-07-29 | 福建恒利纸业有限公司 | Method for producing ultra-flexible face tissue |
| CN101748644A (en) * | 2008-12-02 | 2010-06-23 | 福建省晋江优兰发纸业有限公司 | Production process of colored tissue paper |
| CN102433786A (en) * | 2011-10-31 | 2012-05-02 | 福建农林大学 | Method for preparing micro nano-crystalline cellulose with mechanical force chemical method |
-
2014
- 2014-07-11 CN CN201410329792.7A patent/CN104131484B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004053224A1 (en) * | 2002-12-12 | 2004-06-24 | Stfi, Skogsindustrins Tekniska Forskningsinstitut Ab | Method for reducing the energy demand during refining of chemical pulp |
| CN101338533A (en) * | 2008-07-31 | 2009-01-07 | 杨清国 | Method for producing toilet paper |
| CN101748644A (en) * | 2008-12-02 | 2010-06-23 | 福建省晋江优兰发纸业有限公司 | Production process of colored tissue paper |
| CN101492896A (en) * | 2009-03-03 | 2009-07-29 | 福建恒利纸业有限公司 | Method for producing ultra-flexible face tissue |
| CN102433786A (en) * | 2011-10-31 | 2012-05-02 | 福建农林大学 | Method for preparing micro nano-crystalline cellulose with mechanical force chemical method |
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| CN104131484B (en) | 2016-03-02 |
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