CN104018394A - Manufacturing method of melamine impregnated paper used for laminate flooring - Google Patents
Manufacturing method of melamine impregnated paper used for laminate flooring Download PDFInfo
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- CN104018394A CN104018394A CN201410215947.4A CN201410215947A CN104018394A CN 104018394 A CN104018394 A CN 104018394A CN 201410215947 A CN201410215947 A CN 201410215947A CN 104018394 A CN104018394 A CN 104018394A
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- impregnated paper
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- melamine impregnated
- melmac
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Abstract
The invention discloses a manufacturing method of melamine impregnated paper used for laminate flooring. The manufacturing method comprises the following steps of preparing a bacterial cellulose membrane, preparing high strength impregnated body paper, softening a melamine resin and preparing the melamine impregnated paper. The manufacturing method takes mixed sugar as a carbon source and casein hydrolysate as a nitrogen source, so that output of the bacterial cellulose membrane is greatly increased. Isocyanate with high glue strength and good toughness is added in the softening process of the melamine resin; and the whole preparation process is reasonable in design and is scientific and controllable, so that preparation cost is reduced and physical properties of products are good, thereby meeting use requirements of the laminate flooring.
Description
Technical field
The invention belongs to wood-base fibre and particle panel material field, relate to a kind of manufacture method of melamine impregnated paper, be specifically related to the manufacture method of a kind of consolidated floor melamine impregnated paper.
Background technology
Consolidated floor, claims again impregnated-paper laminated wood floor, and it is that surface posts melamine impregnated paper, the back side posts a kind of wood floors that balance layer is made through hot pressing taking high density fiberboard or shaving board as base material.Consolidated floor has that surface aesthetic, anti-wear performance are good, good stability of the dimension, anti-pollution ability is strong, shock resistance good, the advantage such as easy for installation, has obtained a large amount of uses in decorations field, liked by consumers in general.
In the manufacture of consolidated floor, the performance of melamine impregnated paper plays very important effect to the quality of consolidated floor, has determined surface property and the quality of consolidated floor.But because melmac solidifies, rear fragility is large, intensity is low, very easily embrittlement, cause melamine impregnated paper in processes such as storage, carrying, uses, surface fracture, cracking, embrittlement very easily to occur, the damage such as tear and become waste product, thereby greatly reduce the production efficiency of consolidated floor and the quality of product, and improved production cost.In melmac, add the method such as plasticizer, modifier although have scholar and manufacturing enterprise to adopt, make the fragility of melamine impregnated paper obtain improvement to a certain degree, but till settled the present, still there is no thoroughly to solve that melamine impregnated paper intensity is low, the problem of embrittlement very easily.
Summary of the invention
The technical problem to be solved in the present invention is: for the variety of issue of existing melamine impregnated paper existence, provide the preparation method of the consolidated floor melamine impregnated paper that a kind of intensity is high, fragility is little, cheap for manufacturing cost.
The technical solution adopted in the present invention is as follows:
A manufacture method for melamine impregnated paper for consolidated floor, comprises the following steps:
1), prepare bacteria cellulose film
Taking acetobacter xylinum or Pasteur's acetobacter as raw material, taking mixed sugar as carbon source, taking casein hydrolysate as nitrogenous source, in reactor, fermentation makes bacterial cellulose wet-coating, again bacterial cellulose wet-coating is soaked in aqueous slkali, make its pH value reach neutrality with deionized water rinsing rear for subsequent use;
2), preparation high strength decorative paper
By step 1) the neutral bacterial cellulose wet-coating that makes is cut into piece, with water by 1: the weight ratio of 6-9 is mixed, the rotating speed machinery decomposition turning with 12000-13000 in standard fibers dissociation device makes bacterial cellulose suspension, afterwards suspension is pressed to weight ratio and the even compound sheet of paper pulp of 0.5-4%, then made high strength decorative paper after squeezing, being dried;
3), melmac softening
Adopt alkyd resins or thiocarbamide to carry out, after modification, adding the carbimide of weight ratio 1.0-2.0% to melmac, after rapid stirring is even, make softening melmac maceration extract;
4), prepare melamine impregnated paper
By step 3) the softening melmac maceration extract that makes packs in cement dipping machine, makes top layer dipping abrasion-proof paper or decorative impregnated paper by dipping, after dry, and insert in the special warehouse of constant temperature and humidity and store.
For improving the output of bacteria cellulose film, it is carbon source that the present invention adopts mixed sugar, taking casein hydrolysate as nitrogenous source, wherein, mixed sugar is preferably the sucrose of 55-70wt% and the fructose of 30-45wt%, also can select the glucose of 55-70wt% and the maltose of 30-45wt%.
Further preferably, above-mentioned steps 1) in the aqueous slkali NaOH solution that is 0.1-0.2mol/L.
Step 2) weight ratio of neutral bacteria cellulose and water is 1: 7, suspension mixes with paper pulp by 2.5% weight ratio.
Compared with prior art, the beneficial effect that the present invention has is as follows:
It is carbon source that the present invention adopts mixed sugar in the time preparing bacteria cellulose film, taking casein hydrolysate as nitrogenous source, thereby greatly improve the output of bacteria cellulose film, in melmac softening process, add that bonding strength is high, the carbimide of good toughness, whole preparation technology is reasonable in design, science is controlled, not only reduce preparation cost, and the physical property of product is good, the wet longitudinal stretching resistance of shape can reach 10-14N, the wet horizontal stretching resistance of shape can reach 8-12N, wet shape folding strength can reach 50-70 time, and wet shape burst index can reach 1-2kPam
2/ g, wet shape tear index can reach 3.5-4mNm
2/ g, can meet the instructions for use of consolidated floor.
Detailed description of the invention
For ease of understanding the present invention, it is as follows that the present invention enumerates embodiment.Those skilled in the art should understand, described embodiment only, for helping to understand the present invention, should not be considered as concrete restriction of the present invention.
As no specific instructions, various raw material of the present invention all can obtain by commercially available; Or prepare according to the conventional method of this area.Unless otherwise defined or described herein, all specialties used herein are identical with the art technology meaning that skillfully person of entering is familiar with scientific words.In addition any method similar or impartial to described content and material all can be applicable in the inventive method.Unless otherwise indicated, the familiar meaning of all specialties used herein and scientific words and those skilled in the art is identical.
Embodiment 1
The manufacture method of top layer melamine-impregnated abrasion-proof paper, comprises the following steps:
1), prepare bacteria cellulose film
Taking acetobacter xylinum or Pasteur's acetobacter as raw material, taking the sucrose of 55-70wt% and the fructose of 30-45wt% as carbon source, taking casein hydrolysate as nitrogenous source, in the reactor with agitator, fermentation makes bacterial cellulose wet-coating, afterwards bacterial cellulose wet-coating is taken out from reactor in the NaOH solution that is soaked in 0.15mol/L concentration, repeatedly soak and rinse with deionized water again, its pH value is reached after neutrality with for subsequent use or storage.
2), preparation high strength decorative paper
By step 1) the neutral bacterial cellulose wet-coating that makes is cut into the fritter that dimensions is 5-8mm × 5-8mm, mix by the weight ratio of 1: 7 with water, in standard fibers dissociation device, decompose and make bacterial cellulose suspension with the 12500 rotating speed machineries that turn, afterwards suspension is pressed to 2.5% weight ratio and the even compound sheet of paper pulp, then made high strength decorative paper after squeezing, being dried.
3), melmac softening
Adopt alkyd resins or thiocarbamide to carry out after conventional modification melmac, make the melmac that fragility is less, have certain flexibility, add afterwards the carbimide of weight ratio 1.5%, rapid stirring makes that fragility is little, the softening melmac maceration extract of good toughness after evenly.
4), prepare melamine impregnated paper
By step 3) the softening melmac maceration extract that makes packs in cement dipping machine, carry out twice dipping and twice dry: according to high strength decorative paper dipping softening melmac, spraying wear-resistant materials, for the first time dry, flood the operation such as softening melmac, dry, cooling, cutting for the second time for the second time and manufacture, insert storage in the special warehouse of constant temperature and humidity.
The top layer melamine-impregnated abrasion-proof paper that the present embodiment is made, the product of buying with market is compared, as follows after testing:
The wet longitudinal stretching resistance of shape is that 12N, the wet horizontal stretching resistance of shape are 10N, has improved 40%;
Wet shape folding strength is 60 times, has improved 4 times;
Wet shape burst index is 1-2kPam
2/ g, has improved 1.5 times;
Wet shape tear index is 4mNm
2/ g, has improved 30%.
Embodiment 2
The manufacture method of melamine decorative impregnated paper, difference is compared with embodiment 1:
Step 4) to carry out single-steeping and twice dry: manufacture according to operations such as high strength decorative paper dipping softening melmac, dry, dipping softening melmac, dry, cooling, cuttings.
The melamine decorative impregnated paper that the present embodiment is made, the product of buying with market is compared, as follows after testing:
The wet longitudinal stretching resistance of shape is that 10N, the wet horizontal stretching resistance of shape are 8N, has improved 30%;
Wet shape folding strength is 50 times, has improved 3 times;
Wet shape burst index is 1kPam
2/ g, has improved 1 times;
Wet shape tear index is 3.5mNm
2/ g, has improved 30%.
Applicant's statement, person of ordinary skill in the field is on the basis of above-described embodiment, by the concrete content point value of above-described embodiment component, combined with the technical scheme of summary of the invention part, thereby the new number range producing, also be one of record scope of the present invention, the application, for making description simple and clear, is no longer enumerated these number ranges.
Claims (5)
1. a manufacture method for melamine impregnated paper for consolidated floor, is characterized in that comprising the following steps:
1), prepare bacteria cellulose film
Taking acetobacter xylinum or Pasteur's acetobacter as raw material, taking mixed sugar as carbon source, taking casein hydrolysate as nitrogenous source, in reactor, fermentation makes bacterial cellulose wet-coating, again bacterial cellulose wet-coating is soaked in aqueous slkali, make its pH value reach neutrality with deionized water rinsing rear for subsequent use;
2), preparation high strength decorative paper
By step 1) the neutral bacterial cellulose wet-coating that makes is cut into piece, with water by 1: the weight ratio of 6-9 is mixed, the rotating speed machinery decomposition turning with 12000-13000 in standard fibers dissociation device makes bacterial cellulose suspension, afterwards suspension is pressed to weight ratio and the even compound sheet of paper pulp of 0.5-4%, then made high strength decorative paper after squeezing, being dried;
3), melmac softening
Adopt alkyd resins or thiocarbamide to carry out, after modification, adding the carbimide of weight ratio 1.0-2.0% to melmac, after rapid stirring is even, make softening melmac maceration extract;
4), prepare melamine impregnated paper
By step 3) the softening melmac maceration extract that makes packs in cement dipping machine, makes top layer dipping abrasion-proof paper or decorative impregnated paper by dipping, after dry, and insert in the special warehouse of constant temperature and humidity and store.
2. the manufacture method of melamine impregnated paper for a kind of consolidated floor as claimed in claim 1, is characterized in that: described step 1) mixed sugar formed by the sucrose of 55-70wt% and the fructose of 30-45wt%.
3. the manufacture method of melamine impregnated paper for a kind of consolidated floor as claimed in claim 1, is characterized in that: described step 1) mixed sugar formed by the glucose of 55-70wt% and the maltose of 30-45wt%.
4. the manufacture method of melamine impregnated paper for a kind of consolidated floor as claimed in claim 1, is characterized in that: described step 1) in the aqueous slkali NaOH solution that is 0.1-0.2mol/L.
5. the manufacture method of melamine impregnated paper for a kind of consolidated floor as claimed in claim 1, is characterized in that: described step 2) neutral bacteria cellulose is 1: 7 with the weight ratio of water, suspension is pressed 2.5% weight ratio and is mixed with paper pulp.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410215947.4A CN104018394B (en) | 2014-05-19 | 2014-05-19 | Manufacturing method of melamine impregnated paper used for laminate flooring |
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| CN201410215947.4A CN104018394B (en) | 2014-05-19 | 2014-05-19 | Manufacturing method of melamine impregnated paper used for laminate flooring |
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| CN104018394A true CN104018394A (en) | 2014-09-03 |
| CN104018394B CN104018394B (en) | 2017-01-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532677A (en) * | 2014-11-24 | 2015-04-22 | 南通新世纪机电有限公司 | Manufacturing method of melamine impregnated paper |
| CN104532678A (en) * | 2014-11-24 | 2015-04-22 | 南通新世纪机电有限公司 | Production method of melamine printing decorative impregnated paper |
| CN104894914A (en) * | 2015-05-05 | 2015-09-09 | 浙江宜佳新材料有限公司 | Preparation method of modified impregnated paper body paper |
| CN110805235A (en) * | 2019-10-10 | 2020-02-18 | 宾可私人有限公司 | SPC floor capable of adsorbing formaldehyde |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6001925A (en) * | 1998-01-14 | 1999-12-14 | Georgia-Pacific Resins, Inc. | Melamine-formaldehyde resins modified with dicyandiamide and sorbitol for impregnation of substrates for post-formable decorative laminates |
| US20010051679A1 (en) * | 2000-05-05 | 2001-12-13 | Frank Scholl | Amino resin mixture for producing foils and edgings with reduced formaldehyde elimination |
| CN101363202A (en) * | 2008-08-22 | 2009-02-11 | 许春元 | Bacterial cellulose enhanced paper |
| US20100291372A1 (en) * | 2007-10-04 | 2010-11-18 | Dakor Melamin Impragnienungen GMBH | Method for the Production of an Abrasion-Resistant Film and Finish Film Produced According to Said Method |
-
2014
- 2014-05-19 CN CN201410215947.4A patent/CN104018394B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6001925A (en) * | 1998-01-14 | 1999-12-14 | Georgia-Pacific Resins, Inc. | Melamine-formaldehyde resins modified with dicyandiamide and sorbitol for impregnation of substrates for post-formable decorative laminates |
| US20010051679A1 (en) * | 2000-05-05 | 2001-12-13 | Frank Scholl | Amino resin mixture for producing foils and edgings with reduced formaldehyde elimination |
| US20100291372A1 (en) * | 2007-10-04 | 2010-11-18 | Dakor Melamin Impragnienungen GMBH | Method for the Production of an Abrasion-Resistant Film and Finish Film Produced According to Said Method |
| CN101363202A (en) * | 2008-08-22 | 2009-02-11 | 许春元 | Bacterial cellulose enhanced paper |
Non-Patent Citations (4)
| Title |
|---|
| K.V. RAMANA,A. TOMAR,LOKENDRA SINGH: "Effect of various carbon and nitrogen sources on cellulose synthesis by Acetobacter xylinum", 《WORLD JOURNAL OF MICROBIOLOGY AND BIOTECHNOLOGY》, vol. 3, no. 16, 31 December 2000 (2000-12-31), pages 245 * |
| 广西三威林产工业有限公司技术中心: "《中国强化木地板使用指南》", 30 November 2001, article "树脂浸渍纸装饰板", pages: 84 * |
| 李康球: "热固性树脂装饰层压板后成型过程中产生裂隙的原因及预防方法", 《木材工业》, no. 2, 31 December 1999 (1999-12-31), pages 36 - 38 * |
| 韩桐恩: "有关低压短周期浸渍纸贴面刨花板生产的若干技术问题", 《木材工业》, no. 1, 31 December 1987 (1987-12-31), pages 24 - 29 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104532677A (en) * | 2014-11-24 | 2015-04-22 | 南通新世纪机电有限公司 | Manufacturing method of melamine impregnated paper |
| CN104532678A (en) * | 2014-11-24 | 2015-04-22 | 南通新世纪机电有限公司 | Production method of melamine printing decorative impregnated paper |
| CN104894914A (en) * | 2015-05-05 | 2015-09-09 | 浙江宜佳新材料有限公司 | Preparation method of modified impregnated paper body paper |
| CN104894914B (en) * | 2015-05-05 | 2017-10-13 | 浙江宜佳新材料股份有限公司 | A kind of preparation method of modified dipping paper body paper |
| CN110805235A (en) * | 2019-10-10 | 2020-02-18 | 宾可私人有限公司 | SPC floor capable of adsorbing formaldehyde |
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| Publication number | Publication date |
|---|---|
| CN104018394B (en) | 2017-01-18 |
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Effective date of registration: 20200325 Address after: 510000 room 711, 5 Huangpu East Road, Huangpu District, Guangzhou City, Guangdong Province Patentee after: Guangzhou Juncheng Intellectual Property Agency Co., Ltd Address before: 311300 No. 88 North Ring Road, Jincheng Town, Ling'an City, Zhejiang Province Patentee before: ZHEJIANG A & F University |
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Effective date of registration: 20200327 Address after: No. 8, ruxiliukuai village, Xiqiao Town, Nanhai District, Foshan City, Guangdong Province Patentee after: Foshan Jiansheng decoration materials Co., Ltd Address before: 510000 room 711, 5 Huangpu East Road, Huangpu District, Guangzhou City, Guangdong Province Patentee before: Guangzhou Juncheng Intellectual Property Agency Co., Ltd |
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