CN102877355A - Polylactic acid forming paper and preparation method - Google Patents
Polylactic acid forming paper and preparation method Download PDFInfo
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- CN102877355A CN102877355A CN2012104283636A CN201210428363A CN102877355A CN 102877355 A CN102877355 A CN 102877355A CN 2012104283636 A CN2012104283636 A CN 2012104283636A CN 201210428363 A CN201210428363 A CN 201210428363A CN 102877355 A CN102877355 A CN 102877355A
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Abstract
The invention provides polylactic acid forming paper adopting polylatic acid fibers as a raw material and a preparation method thereof so as to solve the vices of hair slip and powder drop of the conventional forming paper and reduce excessive consumption of production of the conventional forming paper on resources to a certain extent. The invention adopts the following technical means: the polylactic acid forming paper comprises the following components in parts by weight: 15-65 parts of polylactic acid fibers, 15-20 parts of hardwood fibers with whiteness of 80-85% and 10-15 parts of polyester fibers, wherein the polylactic fibers are 4-6 mm long, and the fineness is 1-5 D; the polyester fibers are 4-10 mm long and the fineness is 0.5-1.4 D; the ratio of the forming paper is 10-50 g and the air permeability is 500-50000 um/pa.s.
Description
Technical field
The application relates to the preparation field of Cigarette paper, specifically belongs to the forming paper preparation field.
Background technology
Forming paper belongs to the extraordinary stationery of industrial thin, the auxiliary material that cigarette is used, be mainly used in the tobacco business cigarette filter and wrap up tow, then by tipping paper with cigarette and the bonding cigarette with filter tip that namely becomes of filter stick, the Main Function of filter stick shaping paper is: coat tow, filter the dilution main flume, improve taste, reduce and think that cigarette is to the harm of human body.
Existing forming paper is the same with common paper industry, and raw materials used mainly is lumber fibre, larger to the consumption of the forest reserves, along with the swift and violent increase of market to high-quality and high-grade demand for paper products, demand growth to wood pulp is very fast, and supply falls short of demand for domestic raw material, the import of having to depend in a large number.In recent years; in Chinese paper-making industry raw material; although the consumption ratio to wood pulp rises to some extent; but compare with the wood pulp mean consumption 94% of international developed country paper industry; still have larger gap, its main cause is the Chinese forest scarcity of resources, and timber resources flows to abroad continuously in recent years; not only restrict the sound development of Chinese paper-making industry, also increased the weight of the burden of environmental protection aspect simultaneously.The afforestation rate of China only is equivalent to 61.3% of world average level at present, and of low quality, age of stand unreasonable structure, and paper-making industry is timber use rich and influential family, in the annual forest reserves that consume in the world, have 40% to be used for papermaking, and the present paper grade (stock) material of China only account for 6.7% of China's forest reserves that consume, this has not only caused domestic wood pulp under-supply, and has directly affected the adjustment of papermaking material structure and the raising of paper product quality.Though adopt waste paper to substitute former wood pulp can be alleviated insufficient raw material to a certain extent as paper making raw material present situation, but owing to waste paper reclaim the site few, reclaim price and cross the reasons such as economic benefit low and that waste paper can produce is not obvious, can not fundamentally solve the problem of paper pulp raw material deficiency, so a large amount of dependence on import of having to.
For solving these contradiction, under the prerequisite that satisfies the requirement of paper Special use, actively seek safety, wide material sources, the rational forming paper raw material substitution of cost product and be to guarantee and promote one of important process of cigarette industry stable development.
Because it uses the particularity in field, also there is following problem in existing forming paper except the underlying issue that has above-mentioned common paper industry.
The hair and powder dropping phenomenon, common showing as: lower fiber fines, chip, filler grain and sizing agent etc. come off from paper or edge under the effect of mechanical force, when the surface tension of paper will produce this phenomenon during less than extraneous mechanicals efforts, that is to say, falling hair is that single fiber splits away off from paper; Dry linting is that paper makes fiber fines chip and filler grain etc. split away off from paper or edge under friction, bending, impact or vibration.Along with the raising of filter stick formation motor speed, filter stick shaping paper hair and powder dropping phenomenon is more and more outstanding in the actual production, and its reason mainly contains following:
1. raw-material impact: existing forming paper normally adopts the string of paper grade (stock) to prepare, in order to improve adhesion between paper fibre, make tensile strength and the bursting strength of paper better, can select the thinner long fiber of cell membrane as raw material, it is in making beating and become easy flat the collapsing of fiber in the paper process, thereby between fiber and fiber, form larger contact-making surface, the bond strength of fiber is all right during paper page drying position, this means that this fiber easily makes the surface area of fiber increase when making beating, thereby the bond strength of fiber also just increases, therefore, increase ratio of long fiber and be conducive to reduce the hair and powder dropping phenomenon, but long fiber too much can affect again the flatness of paper, causes the pi of filter stick and bond properties to reduce, and how to carry out reasonable balance and be always the difficult problem during forming paper is made.
2. the impact of filler: filler be produce filter stick shaping paper important auxiliary material it, it is to the tensile strength of filter stick shaping paper, the surface property of paper, and sticking mouthful of quality of rolled filter rod all have a significant impact, normally used filler is calcium carbonate, kaolin etc.Because fillers dispersed between fiber, has hindered the mutually close of fiber, has reduced connection mutual between fiber, has reduced interfibrous relative bonded area, causes the reduction of fibrous binding force, thereby the physical strength of paper is descended, cause the dry linting phenomenon.
3. the impact of bake out temperature: when the l Water Paper page or leaf entered drying process, the too high fiber that easily makes of temperature adhered to, and destroys the surface strength of page, causes the wildness of paper, causes hair and powder dropping.
The main performance that forming paper is used in cigarette is air permeability, this directly has influence on suction quality and the flue gas mouthfeel of cigarette, the variation of air permeability can directly affect again anti-and tearing strength of forming paper, so, for guaranteeing that filter stick shaping paper can even running on high-energy-rate forming machine, can not pursue merely air permeability or intensity index, and should pay attention to the uniformity of view picture, the coefficient of variation that prevents intensity index is excessive, appears at the problem of minimum of intensity place fracture when causing the machine operation.
Summary of the invention
For solving the defective of traditional forming paper hair and powder dropping, and alleviate to a certain extent traditional forming paper production to the consuming excessively of resource, the object of the present invention is to provide a kind of acid fiber by polylactic that adopts as forming paper of raw material and preparation method thereof.
For achieving the above object, the present invention adopts following technological means: the acid fiber by polylactic forming paper, it is characterized in that, calculate according to parts by weight, contain acid fiber by polylactic 15-65 part, whiteness is broad-leaved wood fiber 15-20 part of 80-85%, polyester fiber 10-15 part, the length of described acid fiber by polylactic is 4-6mm, and fiber number is 1-5D; The length of described polyester fiber is 4-10mm, and fiber number is 0.5-1.4D; The quantitative of described forming paper is 10-50g, and air permeability is 500-50000um/pa.s.
For improving air permeability and the retention function of forming paper, in described forming paper, add the guar gum of 0.05-0.15 part.
For improving the suppleness of forming paper, in described forming paper, add 0.05-0.10 part polyacrylamide.
The preparation method of acid fiber by polylactic forming paper comprises the technique of getting the raw materials ready, paper machine design technology, and paper machine parameter adjusting process and field control is characterized in that, the concrete steps of the described technique of getting the raw materials ready are:
1. select specification to be: acid fiber by polylactic 15-65 part of 1-5D * 4-6mm, adopt trough-style pulp beater to carry out free beating, beating consistency is 1-2%, the gradation making beating, after at first adopting the beating pressure making beating 5-10min of 5-7kg, change the 50-60min that pulls an oar under the beating pressure 2-3kg into, beating degree is 9-12 ° of SR, weight in wet base 6-8g again;
2. whiteness is that 80-85%, fibre length are 0.8-2.0mm hardwood pulp 15-20 part, adopts shiny beating, and beating degree is 40～50 ° of SR, weight in wet base 6-8g;
3. above-mentioned acid fiber slurries and hardwood pulp are mixed the rear polyester fiber 10-15 part that adds, mix and make suspension paper pulp;
4. use oblique net paper machine to manufacture paper with pulp;
5. use vacuum furnace and pressure roller to squeeze, l Water Paper page or leaf out contains 80% moisture content, by regulate squeezing and the speed of wet end poor the l Water Paper page or leaf at longitudinal stretching, fiber is vertically arranges, the hole between the fiber is vertically, the raising air permeability;
6. use the cylinder group of single net single cylinder to carry out drying, the temperature of two drying cylinders of beginning detects the paper web mass dryness fraction afterwards at 70-75 ℃, after mass dryness fraction surpasses 50%, with the adjustment of follow-up drying cylinder to 80-85 ℃, until reach instructions for use.
For enhancing productivity, step adopts the beating pressure making beating 60-70min of 4-5kg when acid fiber by polylactic being pulled an oar in 1., to beating degree be 11 ° of SR.
Beneficial effect of the present invention is:
A, the present invention take full advantage of that the acid fiber by polylactic compatibility is good, the characteristics of the characteristic of safety non-toxic, nonirritant, the better performances of manufacturing paper with pulp, with its main raw material as forming paper, replace existing forming paper and use in a large number wood pulp, can reduce the consumption to timber resources, because it has biological degradability, can reduce the impact on environment simultaneously.
Adhesion is strong between the paper fibre of b, forming paper of the present invention, tensile strength and the bursting strength of paper are better, bond strength between acid fiber by polylactic and the polyester fiber is good, be conducive to reduce the hair and powder dropping phenomenon, and added the short fiber string of proper ratio, be used for improving the flatness of paper, improve pi and the bond properties of filter stick.
When c, forming paper of the present invention carry out drying in preparation, by the gradient control to front middle and later periods dryer temperature, and according in real time the testing result of paper mass dryness fraction being carried out the temperature adjustment, in the time of can preventing effectively that the l Water Paper page or leaf from entering drying process, the too high fiber that easily makes of temperature adheres to, destroy the surface strength of page, cause the wildness of paper, cause the problem of hair and powder dropping.
D, because acid fiber by polylactic is not that addition is The more the better in paper technology, although acid fiber by polylactic increases, be conducive to improve the air permeability of forming paper, but can reduce the tensile index of paper, tear index and folding strength, so the addition with acid fiber by polylactic among the present invention is controlled at certain limit, make air permeability and the requirement of strength of forming paper comparatively even, guarantee under the prerequisite that satisfies the air permeability of cigarette energy, can even running on high-energy-rate forming machine, the coefficient of variation that prevents intensity index is excessive, causes to occur the problem that fracture waits impact normally to produce in the actual production.
The specific embodiment
Embodiment 1
The described acid fiber by polylactic forming paper of the present embodiment calculates according to parts by weight, contains 15 parts of acid fiber by polylactic, and whiteness is 15 parts of 80% broad-leaved wood fibers, 10 parts on polyester fiber, and the length of described acid fiber by polylactic is 4mm, fiber number is 1D; The length of described polyester fiber is 4mm, and fiber number is 0.5D, and adds 0.05 part guar gum.Its preparation method comprises the technique of getting the raw materials ready, paper machine design technology, paper machine parameter adjusting process and field control, and the concrete steps of the described technique of getting the raw materials ready are:
1. select 15 parts of the acid fiber by polylactic of above-mentioned specification, adopt trough-style pulp beater to carry out free beating, beating consistency is 1%, at first adopt the beating pressure making beating 10min of 5kg after, change again the 60min that pulls an oar under the beating pressure 2kg into, beating degree is 9 ° of SR, weight in wet base 8g;
2. select 15 parts of the hardwood pulps of above-mentioned specification, adopt shiny beating, beating degree is 40 ° of SR, weight in wet base 6g;
3. above-mentioned acid fiber by polylactic slurries and hardwood pulp are mixed rear 10 parts on the polyester fiber that adds, the interpolation guar gum mixes makes suspension paper pulp;
4. use oblique net paper machine to manufacture paper with pulp;
5. use vacuum furnace and pressure roller to squeeze, l Water Paper page or leaf out contains 80% moisture content, by regulate squeezing and the speed of wet end poor the l Water Paper page or leaf at longitudinal stretching, fiber is vertically arranges, the hole between the fiber is vertically, the raising air permeability;
6. use the cylinder group of single net single cylinder to carry out drying, the temperature of two drying cylinders of beginning detects the paper web mass dryness fraction afterwards at 70 ℃, after mass dryness fraction surpasses 50%, with the adjustment to 80 of follow-up drying cylinder ℃, until reach instructions for use.
The quantitative of described forming paper is 10g, and air permeability is 500um/pa.s.
Embodiment 2
The described acid fiber by polylactic forming paper of the present embodiment calculates according to parts by weight, contains 65 parts of acid fiber by polylactic, and whiteness is 20 parts of 85% broad-leaved wood fibers, 15 parts on polyester fiber, and the length of described acid fiber by polylactic is 6mm, fiber number is 5D; The length of described polyester fiber is 10mm, and fiber number is 1.4D, and adds 0.10 part of polyacrylamide.Its preparation method comprises the technique of getting the raw materials ready, paper machine design technology, paper machine parameter adjusting process and field control, and the concrete steps of the described technique of getting the raw materials ready are:
1. select 65 parts of the acid fiber by polylactic of above-mentioned specification, adopt trough-style pulp beater to carry out free beating, use the making beating power making beating 70min of 4kg, to beating degree be 11 ° of SR weight in wet base 8g;
2. select 20 parts of the hardwood pulps of above-mentioned specification, adopt shiny beating, beating degree is 50 ° of SR, weight in wet base 8g;
3. above-mentioned acid fiber by polylactic slurries and hardwood pulp are mixed rear 15 parts on the polyester fiber that adds, the interpolation polyacrylamide mixes makes suspension paper pulp;
4. use oblique net paper machine to manufacture paper with pulp;
5. use vacuum furnace and pressure roller to squeeze, l Water Paper page or leaf out contains 80% moisture content, by regulate squeezing and the speed of wet end poor the l Water Paper page or leaf at longitudinal stretching, fiber is vertically arranges, the hole between the fiber is vertically, the raising air permeability;
6. use the cylinder group of single net single cylinder to carry out drying, the temperature of two drying cylinders of beginning detects the paper web mass dryness fraction afterwards at 75 ℃, after mass dryness fraction surpasses 50%, with the adjustment to 85 of follow-up drying cylinder ℃, until reach instructions for use.
The quantitative of described forming paper is 50g, and air permeability is 50000um/pa.s.
Embodiment 3
The described acid fiber by polylactic forming paper of the present embodiment calculates according to parts by weight, contains 30 parts of acid fiber by polylactic, and whiteness is 18 parts of 85% broad-leaved wood fibers, 13 parts on polyester fiber, and the length of described acid fiber by polylactic is 5mm, fiber number is 3D; The length of described polyester fiber is 7mm, and fiber number is 1.0D, and adds the guar gum of 0.10 part of polyacrylamide and 0.10 part.Its preparation method comprises the technique of getting the raw materials ready, paper machine design technology, paper machine parameter adjusting process and field control, and the concrete steps of the described technique of getting the raw materials ready are:
1. select 30 parts of the acid fiber by polylactic of above-mentioned specification, adopt trough-style pulp beater to carry out free beating, use the making beating power making beating 60min of 5kg, to beating degree be 11 ° of SR weight in wet base 8g;
2. select 18 parts of the hardwood pulps of above-mentioned specification, adopt shiny beating, beating degree is 40 ° of SR, weight in wet base 8g;
3. will above-mentioned acid fiber slurries and hardwood pulp add 13 parts on polyester fiber after mixing, be added into polyacrylamide and guar gum, mix and make suspension paper pulp;
4. use oblique net paper machine to manufacture paper with pulp;
5. use vacuum furnace and pressure roller to squeeze, l Water Paper page or leaf out contains 80% moisture content, by regulate squeezing and the speed of wet end poor the l Water Paper page or leaf at longitudinal stretching, fiber is vertically arranges, the hole between the fiber is vertically, the raising air permeability;
6. use the cylinder group of single net single cylinder to carry out drying, the temperature of two drying cylinders of beginning detects the paper web mass dryness fraction afterwards at 75 ℃, after mass dryness fraction surpasses 50%, with the adjustment to 85 of follow-up drying cylinder ℃, until reach instructions for use.
The quantitative of described forming paper is 30g, and air permeability is 8000um/pa.s.
Claims (5)
1. the acid fiber by polylactic forming paper is characterized in that, calculates according to parts by weight, contains acid fiber by polylactic 15-65 part, and whiteness is broad-leaved wood fiber 15-20 part of 80-85%, polyester fiber 10-15 part; The length of described acid fiber by polylactic is 4-6mm, and fiber number is 1-5D; The length of described polyester fiber is 4-10mm, and fiber number is 0.5-1.4D; The quantitative of described forming paper is 10-50g, and air permeability is 500-50000um/pa.s.
2. acid fiber by polylactic forming paper according to claim 1 is characterized in that, calculates according to parts by weight, adds the guar gum of 0.05-0.15 part in described forming paper.
3. acid fiber by polylactic forming paper according to claim 1 is characterized in that, calculates according to parts by weight, adds 0.05-0.10 part polyacrylamide in described forming paper.
4. the preparation method of the described acid fiber by polylactic forming paper of claim 1-3 comprises the technique of getting the raw materials ready, paper machine design technology, and paper machine parameter adjusting process and field control is characterized in that, the concrete steps of the described technique of getting the raw materials ready are:
1. select specification to be: acid fiber by polylactic 15-65 part of 1-5D * 4-6mm, adopt trough-style pulp beater to carry out free beating, beating consistency is 1-2%, after at first adopting the beating pressure making beating 5-10min of 5-7kg, change again the 50-60min that pulls an oar under the beating pressure 2-3kg into, beating degree is 9-12 ° of SR, weight in wet base 6-8g;
2. whiteness is that 80-85%, fibre length are 0.8-2.0mm hardwood pulp 15-20 part, adopts shiny beating, and beating degree is 40～50 ° of SR, weight in wet base 6-8g;
3. above-mentioned acid fiber by polylactic slurries and hardwood pulp are mixed the rear polyester fiber 10-15 part that adds, mix and make suspension paper pulp;
4. use oblique net paper machine to manufacture paper with pulp;
5. use vacuum furnace and pressure roller to squeeze, l Water Paper page or leaf out contains 80% moisture content, by regulate squeezing and the speed of wet end poor the l Water Paper page or leaf at longitudinal stretching, fiber is vertically arranges, the hole between the fiber is vertically, the raising air permeability;
6. use the cylinder group of single net single cylinder to carry out drying, the temperature of two drying cylinders of beginning detects the paper web mass dryness fraction afterwards at 70-75 ℃, after mass dryness fraction surpasses 50%, with the adjustment of follow-up drying cylinder to 80-85 ℃, until reach instructions for use.
5. the preparation method of acid fiber by polylactic forming paper according to claim 4 is characterized in that, above-mentioned steps adopts once making beating when acid fiber by polylactic being pulled an oar in 1., uses the making beating power making beating 60-70min of 4-5kg, to beating degree be 11 ° of SR.
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| CN104018391A (en) * | 2014-06-27 | 2014-09-03 | 福建省晋江优兰发纸业有限公司 | Craft knitting paper and preparation method thereof |
| CN105625087A (en) * | 2015-12-22 | 2016-06-01 | 嘉兴学院 | Seedling cultivating paper and preparation method thereof |
| CN106436447A (en) * | 2016-10-27 | 2017-02-22 | 中烟摩迪(江门)纸业有限公司 | Shaping paper with super-high air permeability and preparation method thereof |
| CN106690412A (en) * | 2017-03-06 | 2017-05-24 | 云南芯韵科技开发有限公司 | Functional filter stick containing paper wire and preparation method thereof |
| CN108277681A (en) * | 2017-10-07 | 2018-07-13 | 霍文慧 | A kind of high tenacity rice paper material |
| CN110528335A (en) * | 2019-08-28 | 2019-12-03 | 牡丹江恒丰纸业股份有限公司 | A method of it is manufactured paper with pulp filter tip stick paper using PLA fiber wet process |
| CN111172810A (en) * | 2020-01-07 | 2020-05-19 | 华南理工大学 | Completely biodegradable heat-sealing paper and preparation method and application thereof |
| WO2021139512A1 (en) * | 2020-01-07 | 2021-07-15 | 华南理工大学 | Cooling and filtering material, preparation method therefor, and use thereof |
| CN113696297A (en) * | 2021-08-20 | 2021-11-26 | 广州厚邦木业制造有限公司 | Floor board preparation process using composite material as core board and floor board |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104018391A (en) * | 2014-06-27 | 2014-09-03 | 福建省晋江优兰发纸业有限公司 | Craft knitting paper and preparation method thereof |
| CN105625087A (en) * | 2015-12-22 | 2016-06-01 | 嘉兴学院 | Seedling cultivating paper and preparation method thereof |
| CN106436447A (en) * | 2016-10-27 | 2017-02-22 | 中烟摩迪(江门)纸业有限公司 | Shaping paper with super-high air permeability and preparation method thereof |
| CN106436447B (en) * | 2016-10-27 | 2018-04-27 | 中烟摩迪(江门)纸业有限公司 | A kind of superelevation air permeability forming paper and preparation method thereof |
| CN106690412A (en) * | 2017-03-06 | 2017-05-24 | 云南芯韵科技开发有限公司 | Functional filter stick containing paper wire and preparation method thereof |
| CN106690412B (en) * | 2017-03-06 | 2023-05-26 | 云南芯韵科技开发有限公司 | Functional filter stick containing paper threads and preparation method thereof |
| CN108277681A (en) * | 2017-10-07 | 2018-07-13 | 霍文慧 | A kind of high tenacity rice paper material |
| CN110528335A (en) * | 2019-08-28 | 2019-12-03 | 牡丹江恒丰纸业股份有限公司 | A method of it is manufactured paper with pulp filter tip stick paper using PLA fiber wet process |
| CN110528335B (en) * | 2019-08-28 | 2021-11-30 | 牡丹江恒丰纸业股份有限公司 | Method for manufacturing filter tip paper by PLA fiber wet process |
| CN111172810A (en) * | 2020-01-07 | 2020-05-19 | 华南理工大学 | Completely biodegradable heat-sealing paper and preparation method and application thereof |
| WO2021139512A1 (en) * | 2020-01-07 | 2021-07-15 | 华南理工大学 | Cooling and filtering material, preparation method therefor, and use thereof |
| CN113696297A (en) * | 2021-08-20 | 2021-11-26 | 广州厚邦木业制造有限公司 | Floor board preparation process using composite material as core board and floor board |
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| C06 | Publication | ||
| PB01 | Publication | ||
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