CN102839561B - Low-shrinkage non-woven paper and producing method thereof - Google Patents
Low-shrinkage non-woven paper and producing method thereof Download PDFInfo
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- CN102839561B CN102839561B CN201210337563.0A CN201210337563A CN102839561B CN 102839561 B CN102839561 B CN 102839561B CN 201210337563 A CN201210337563 A CN 201210337563A CN 102839561 B CN102839561 B CN 102839561B
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- 238000000576 coating method Methods 0.000 claims abstract description 15
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Abstract
The invention relates to low-shrinkage non-woven paper and a producing method of the low-shrinkage non-woven paper. The low-shrinkage non-woven paper is made by the following raw materials in parts by weight: 55-80 parts of wood pulp, 15-25 parts of polyester fiber, 1-12 parts of aramid fiber, glass fiber or a mixture of the aramid fiber and the glass fiber, and 4-17 parts of additive. The macrofiber wood pulp and the chopped fiber wood pulp are mixed in proportion and then subjected to repulping and beating, the polyester fiber, the aramid fiber, the glass fiber and the additive are added to the wood pulp for mixing, and then sizing, drying, coating, paper winding and rewinding are conducted. The prepared low-shrinkage non-woven paper is high in air permeability and uniformity and stable in quality, and wallpaper produced by the low-shrinkage non-woven paper is high in air permeability, free from dampening, corrosion-resistant and abrasion-resistant, low in shrinkage percentage and better in dimensional stability. With the adoption of the aramid fiber and the glass fiber, multicolor printing effects of the product are improved, the wallpaper is concavo-convex and layered and has a stereoscopic effect, and the high-flash characteristic of the wallpaper meets requirements of people on the high-grade colorful wallpaper.
Description
Technical field
The present invention relates to a kind of low-shrinkage non-woven paper and production method thereof, belong to speciality paper technical field, mainly for the production of high-grade nonwoven fabric wallpaper.
Background situation
Wallpaper is a kind of special processing paper for decorative wall.Cradle is in Europe, the most universal in Northern Europe developed country now, environmental protection and quality best, next is country in Southeast Asia, current wallpaper is in Japan, Russian civilian popularity rate close to 100%, and also have the popularity rate of 50%-65% in American-European countries, the popularity rate current in China is less than 10%! Main cause is that current domestic wallpaper mostly is common paper substrate PVC wallpaper, and air permeability is low, and designs and varieties are single.
Hanging raw stock produces the main raw material(s) of wallpaper, and through carrying out on hanging raw stock surface being coated with, printing, the processes such as embossing becomes wallpaper, and traditional hanging raw stock easily occurs shrinking adding man-hour, easily gets damp again and go mouldy during use.Nonwoven fabric wallpaper rises in American-European countries for nearly 5 years, the wallpaper circle new product of China is just introduced at nearly 3 years, nonwoven fabric wallpaper is very fast in American-European countries's development, due to the performance of its uniqueness, nowadays American-European countries's nonwoven fabric wallpaper utilization rate accounts for more than 70%, and the utilization rate of Chinese nonwoven fabric wallpaper only accounts for 10%, and rely on completely from Ao Silong, ox head, to get profit this Dun Deng offshore company import, nonwoven fabric wallpaper is formed through certain special process is refining by certain proportioning by chemical wood pulp and special chemical fiber, its performance is except all advantages comprising PVC wallpaper and pure paper wallpaper, it is high that this product also has intensity, good waterproof performance, printing effect is good, good permeability, mould not easily grows, be easy to put up, do not take off seam, not warpage, rational flexibility, the advantages such as printing effect true to nature.
Summary of the invention
The object of this invention is to provide a kind of low-shrinkage non-woven paper and production method thereof, solve the shortcomings such as low, the easy moisture regain of air permeability of traditional hanging raw stock, intensity is low.
The technical scheme that the present invention takes is:
A kind of low-shrinkage non-woven paper, be made up of the raw material of following weight part ratio:
Described low-shrinkage non-woven paper, be preferably made up of the raw material of following weight part ratio:
Described wood pulp medium-length fibre pulp quality content is 10%-25%, staple fibre wood pulp 75%-90%.
The preferred superbhort fiber of described polyster fibre, length 3MM-40MM.
Described auxiliary agent weight part ratio consists of: polyacrylamide (being called for short PAM) 1-5 parts, epoxy polyester wet strength agent (being called for short PPE) 30-85 parts, 2-10 parts, aluminum sulfate.
Polyster fibre preferably carries out Hydrophilic Surface Treatment, the sodium hydroxide solution of service property (quality) concentration 8%-12% soaks 1.8-2.2 hour, fiber surface is produced small concavo-convex, chemical fibre after treatment improves adhesive force, cementability, is uniformly dispersed in the process of manufacturing paper with pulp.
The preparation technology of above-mentioned low-shrinkage non-woven paper, comprises step as follows:
(1) long fiber wood pulp, staple fibre wood pulp are mixed pulping, making beating in proportion;
(2) polyster fibre, aramid fiber, glass fibre and auxiliary agent being added mixing in wood pulp makes slurry concentration be 2-3wt%, and slurry ash is 3-20wt%, beating degree 16-40 ° of SR;
(3) use different starching modes according to polyster fibre content difference, use fourdrinier wire or the tiltedly unrestrained fourdrinier wire starching of net or side or two kinds of net mixing starchings;
(4) use pressure roller press dewatering, being dried to moisture is 5 ± 1%;
(5) be coated with;
(6) coil paper, rewinding.
Pulping described in above-mentioned steps (1) is normal temperature pulping, and pulping time is 30-40 minutes, and pulping concentration is about 3%; Beating equipment is double disc refiner, jordan refiner, adopts free shape continuous beating technique, beating consistency about 4%, beating degree (16-40) ° SR.
Use fourdrinier wire in step (3) when polyster fibre adds quality at 15%-20% or tiltedly starch on the net, add quality 20%-25% time, use side wave fourdrinier wire starching, online slurry concentration controls at 0.7% (wt%).
Coating described in step (5), the processing step of coating: bodystock paper → coating machine coating → drying → press polish or surface dressing → rewinding are prepared → selected to coating fluid.Coating fluid is filled a prescription: adhesive, deionized water, coating additive, filler add high-speed stirred by a certain percentage makes it mix.Coating fluid weight part ratio composition is preferred: coarse whiting 50-100 part, china clay 20-30 part, water 40-60 part, CMC1-2 part, dispersant 1-2 part, lubricant 1-3 part, water repellent agent 1-2 part, adhesive 35-45 part.The adhesive of coating can comprise one or more of natural glue and synthetic adhesive.Natural glue be shellac, gelatinized corn starch, specimens of one's blood and natural rubber adhesive in one or more; Synthetic adhesive is one or more in the agent of thermosetting resin gluing, thermoplastic resin adhesives, rubber adhesive and inorganic adhesive.The agent of thermosetting resin gluing comprise in ethene and so on, esters of acrylic acid, phenylethylene, cellulose family, alkyd resins class one or more; Rubber adhesive comprise in reclaimed rubber, butadiene-styrene rubber, neoprene, cyano group rubber, butyl rubber, silicon rubber, polyurethane rubber one or more.
The present invention's adhesive consumption used is depending on the requirement of strength of paper, general between the 1-10% of body paper amount, intensity lower than 1% paper can be not, higher than 10%, the intensity of paper is high, but the microcellular structure of paper is blocked, and affects the permeability of paper, and the deflection of paper is too high, be unfavorable for processing and the use of follow-up workshop section.
In order to increase the water repelling property of wallpaper further, also can add Cypres when on-line coater, the consumption of Cypres is generally at the 0.5-10% of adhesive quality, and lower than 0.5%, sizing efficiency is not obvious.Higher than 5%, the surface of paper has soapy feeling, is unfavorable for the processing of follow-up workshop section.
Described one-tenth paper technical indicator is: quantitatively (70-147) g/m
2; Tightness (0.3-0.6) g/m
3; Dry strong 100N; Wet strong 60N.
The invention has the beneficial effects as follows:
(1) add terylene superbhort fiber and solve the shortcomings such as low, the easy moisture regain of air permeability of traditional hanging raw stock, intensity is low.The present invention adds polyster fibre as wallpaper raw materials for production in wood pulp, terylene superbhort fiber fiber number used: 0.3D 0.5D 0.7D1.4D 2D 7D 12D etc., length: 3MM-40MM.Paper grade (stock) polyster fibre is owing to having done surface hydrophilic process, fiber has good dispersiveness in water, and keep the distinctive intensity of polyester fiber and dynamics, and there is low-shrinkage, the regain of polyster fibre is only 0.4%, and far below wood pulp fibre, therefore this product solves the problems such as the page that wallpaper causes because of moisture regain is after a long time use Texturized, intensity reduction, increase the porosity of paper, improve air permeability and the glue absorbability of paper.Compare with pure paper wallpaper with traditional paper substrate PVC wallpaper, there is higher breathing power, good permeability, can not get damp again go mouldy, intensity high.
(2) fiber such as aramid fiber, glass fibre is added in the slurry to reach the requirement of many chromaticity printings effect.In order to make the printing effect of nonwoven fabric wallpaper more bright and colourful, the many employings chromaticity printing of wallpaper manufacturer and many chromaticity printings, but, just because of the effect of chromaticity printing is more true to nature beautiful, so also very high on the requirement affecting chromaticity printing effect, and the self performance of nonwoven fabric hanging raw stock affects the most important thing of many chromaticity printings effect really.When carrying out many chromaticity printings, the swollen and shrinking under very high bake out temperature if nonwoven fabric body paper absorbs water when ink printing, all can make the final effect of chromaticity printing produce the inaccurate catastrophic effect of chromatography.Due to the resistance to elevated temperatures of aramid fiber and glass fibre uniqueness, make nonwoven fabric wallpaper when chromaticity printing high temperature drying, paper does not shrink, thus not only ensure that printing effect true to nature, and due to very large to the tolerance of baking temperature, thus the chromaticity printing speed ensured, increase production capacity.
(3) because aramid fiber, glass fibre and PET fiber surface are smooth, negative electrical charge intensity is high, can occur in the process of manufacturing paper with pulp with wood pulp fibre in conjunction with problems such as bad, easy gatherings.
(4) because chemical fibre is easily assembled in the slurry, traditional starching mode chemical fibre is uneven in paper, fiber is easily tied a knot, assemble, in the present invention low-shrinkage non-woven paper production method in use different starching mode according to polyster fibre content difference, addition uses fourdrinier wire or tiltedly starches on the net when 15%-20%, addition uses side wave fourdrinier wire starching when 20%-25%, part kind uses above-mentioned two kinds of mixing starching modes.
The low-shrinkage non-woven paper air permeability that the present invention obtains is high, all spend high, steady quality, in follow-up process can not bubbling, holiday, bite, the wallpaper air permeability using this body paper to produce is high, do not get damp again, anticorrosive, abrasion-resistant, the shrinkage factor of paper is low, DIMENSIONAL STABILITY is better, and the flexibility of polyster fibre also ensure that printing effect true to nature in addition, and Surface feel and vision are all very soft.The use of aramid fiber and glass fibre enhances many chromaticity printings effect of product, make that wallpaper is concavo-convex to have levels, have more third dimension, its characteristic of highly glistening, make again simultaneously wallpaper dazzlingly beautiful, add brilliance doubly, meet the color wallpaper of demand people dazzle to(for) top grade.
Detailed description of the invention
Further illustrate below in conjunction with embodiment.
Embodiment 1:
After getting the raw materials ready, calculate by weight proportion: add the wood pulp (its medium-length fibre wood pulp 18%, staple fibre wood pulp 82%) of 68%, polyster fibre 15%, polyster fibre specification is (0.3-12) D × (3-12) mm, specifically add according to kind is actual, Fanglun l414 fiber 7%, use according to customer requirement, auxiliary dosage is the 8-10% of original paper quality, and wherein each raw material addition of auxiliary agent is respectively by weight proportion: polyacrylamide (being called for short PAM) 1 part; Epoxy polyester wet strength agent (being called for short PPE) 30 parts; 2 parts, aluminum sulfate.By online after slurry mixing, as mixed slurry, online concentration controls 0.7%, quantitative 110g/m
2.Use pressure roller press dewatering, being dried to moisture is 5%.
Paper-dope spreading 37g/m
2.Coating fluid weight portion compositing formula: 90 coarse whitings 70 parts, 95 coarse whitings 25 parts, china clay 25 parts, 50 parts, water, CMC 1 part, dispersant (solid content 40%) 1 part, lubricant 2 parts, water repellent agent 1.5 parts, adhesive 40 parts, paper basis weight 147g/m
2, become paper index as follows: quantitatively 147g/m
2, tightness 0.45g/cm
3, tensile strength 9.5KN/m, wet strength 2.5KN/m, surface absorption 30g/m
2, opacity 86%, tearability longitudinal 5100mn, horizontal 4300mn, at wet expansion and contraction 0%, 400 DEG C 10 second shrinkage factor be 0%.
Embodiment 2:
After getting the raw materials ready, calculate by weight proportion: add the wood pulp (long fiber wood pulp 15%, staple fibre wood pulp 85%) of 65%, polyster fibre 25%, polyster fibre specification is (0.3-12) D × (3-12) mm, specifically add according to kind is actual, glass fibre 10%, use according to customer requirement, auxiliary dosage is 10% of body paper, and wherein each raw material addition of auxiliary agent is respectively by weight proportion: polyacrylamide (being called for short PAM) 5 parts; Epoxy polyester wet strength agent (being called for short PPE) 85 parts; 10 parts, aluminum sulfate.By online after slurry mixing, as mixed slurry, online concentration controls 0.7%, quantitative 120g/m
2.Use pressure roller press dewatering, being dried to moisture is 5%.
Paper-dope spreading 15g/m
2.Coating fluid weight portion compositing formula: 90 coarse whitings 70 parts, 95 coarse whitings 25 parts, china clay 25 parts, 50 parts, water, CMC1 part, dispersant (solid content 40%) 1 part, lubricant 2 parts, water repellent agent 1.5 parts, adhesive 40 parts, paper basis weight 150g/m
2, become paper index as follows: quantitatively 135g/m
2, tightness 0.38g/cm
3, tensile strength 9.5KN/m, wet strength 2.5KN/m, surface absorption 30g/m
2, opacity 86%, tearability longitudinal 5100mn, horizontal 6300mn, at wet expansion and contraction 0%, 400 DEG C 10 second shrinkage factor be 0%.
Embodiment 3:
After getting the raw materials ready, calculate by weight proportion: add the wood pulp (long fiber wood pulp 22%, staple fibre wood pulp 78%) of 65%, polyster fibre 25%, polyster fibre specification is (0.3-12) D × (3-12) mm, specifically add according to kind is actual, aramid fiber 1313 4%; Glass fibre 6%, use according to customer requirement, auxiliary dosage is 10% of body paper, and wherein each raw material addition of auxiliary agent is respectively by weight proportion: polyacrylamide (being called for short PAM) 2 parts; Epoxy polyester wet strength agent (being called for short PPE) 40 parts; 5 parts, aluminum sulfate.By online after slurry mixing, as mixed slurry, online concentration controls 0.7%, quantitative 120g/m
2.Use pressure roller press dewatering, being dried to moisture is 5%.
Paper-dope spreading 27g/m
2.Coating fluid weight portion compositing formula: 90 coarse whitings 70 parts, 95 coarse whitings 25 parts, china clay 25 parts, 50 parts, water, CMC1 part, dispersant (solid content 40%) 1 part, lubricant 2 parts, water repellent agent 1.5 parts, adhesive 40 parts, paper basis weight 150g/m
2, become paper index as follows: quantitatively 150g/m
2, tightness 0.41g/cm
3, tensile strength 6.1KN/m, wet strength 1.8KN/m, surface absorption 21g/m
2, opacity 79%, tearability longitudinal 5600mn, horizontal 7400mn, wet expansion and contraction 0%.At 400 DEG C 10 second shrinkage factor be 0%.
Embodiment 4
After getting the raw materials ready, calculate by weight proportion: add the wood pulp (long fiber wood pulp 12%, staple fibre wood pulp 88%) of 70%, polyster fibre 20%, polyster fibre specification is (0.3-12) D × (3-12) mm, specifically add according to kind is actual, aramid fiber 1313 7%; Glass fibre 3%, use according to customer requirement, auxiliary dosage is 10% of body paper, and wherein each raw material addition of auxiliary agent is respectively by weight proportion: polyacrylamide (being called for short PAM) 2 parts; Epoxy polyester wet strength agent (being called for short PPE) 40 parts; 5 parts, aluminum sulfate.By online after slurry mixing, as mixed slurry, online concentration controls 0.7%, quantitative 110g/m
2.Use pressure roller press dewatering, being dried to moisture is 5%.
Paper-dope spreading 15g/m
2.Coating fluid weight portion compositing formula: 90 coarse whitings 70 parts, 95 coarse whitings 25 parts, china clay 25 parts, 50 parts, water, CMC1 part, dispersant (solid content 40%) 1 part, lubricant 2 parts, water repellent agent 1.5 parts, adhesive 40 parts, paper basis weight 150g/m
2, become paper index as follows: quantitatively 125g/m
2, tightness 0.45g/cm
3, tensile strength 9.5KN/m, wet strength 2.5KN/m, surface absorption 30g/m
2, opacity 86%, tearability longitudinal 5100mn, horizontal 6300mn, at wet expansion and contraction 0%, 400 DEG C 10 second shrinkage factor be 0%.
Claims (4)
1. a low-shrinkage non-woven paper, be made up of the raw material of following weight part ratio:
Wood pulp 55-80 parts
Polyster fibre 15-25 parts
Aramid fiber 1-5 parts
1-7 parts, glass fibre
Auxiliary agent 4-17 parts;
Described auxiliary agent weight part ratio consists of: polyacrylamide 1-5 parts, epoxy polyester wet strength agent 30-85 parts, 2-10 parts, aluminum sulfate; Polyster fibre is carry out Hydrophilic Surface Treatment, and the sodium hydroxide solution of service property (quality) concentration 8%-12% soaks 1.8-2.2 hour, fiber surface is produced small concavo-convex.
2. low-shrinkage non-woven paper according to claim 1, is characterized in that, described wood pulp medium-length fibre pulp quality content is 10%-25%, staple fibre wood pulp 75%-90%.
3. the preparation technology of low-shrinkage non-woven paper according to claim 1, is characterized in that, comprises step as follows:
(1) long fiber wood pulp, staple fibre wood pulp are mixed pulping, making beating in proportion;
(2) polyster fibre, aramid fiber, glass fibre and auxiliary agent are added in wood pulp and make slurry concentration be 2-3%, slurry ash is 3-20%, beating degree 16-40 ° of SR;
(3) use different starching modes according to polyster fibre content difference, use fourdrinier wire or the tiltedly unrestrained fourdrinier wire starching of net or side or two kinds of net mixing starchings;
(4) use pressure roller press dewatering, being dried to moisture is 5 ± 1%;
(5) be coated with;
(6) coil paper, rewinding.
4. the preparation technology of low-shrinkage non-woven paper according to claim 3, it is characterized in that, applied coating solution weight part ratio composition described in step (5): coarse whiting 50-100 part, china clay 20-30 part, water 40-60 part, CMC 1-2 part, dispersant 1-2 part, lubricant 1-3 part, water repellent agent 1-2 part, adhesive 35-45 part.
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| CN104746382B (en) * | 2015-03-11 | 2016-09-07 | 山东鲁南新材料股份有限公司 | A kind of formaldehyde adsorption hanging raw stock and production method thereof |
| CN106087533B (en) * | 2016-06-13 | 2018-02-16 | 山东鲁南新材料股份有限公司 | A kind of ecological board repairs paper and preparation method thereof |
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