CN107313304B - Non-woven wallpaper with high dimensional stability and low cost - Google Patents
Non-woven wallpaper with high dimensional stability and low cost Download PDFInfo
- Publication number
- CN107313304B CN107313304B CN201710769205.XA CN201710769205A CN107313304B CN 107313304 B CN107313304 B CN 107313304B CN 201710769205 A CN201710769205 A CN 201710769205A CN 107313304 B CN107313304 B CN 107313304B
- Authority
- CN
- China
- Prior art keywords
- pulp
- paper
- inorganic filler
- bleached
- dimensional stability
- 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.)
- Active
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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/18—Paper- or board-based structures for surface covering
- D21H27/20—Flexible structures being applied by the user, e.g. wallpaper
-
- 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
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Paper (AREA)
Abstract
The invention relates to a non-woven wallpaper with high dimensional stability and low cost, and belongs to the technical field of non-woven wallpapers. The non-woven wallpaper with high dimensional stability and low cost is prepared from the following raw materials in percentage by mass: 35-45 parts of bleached needle pulp, 40-50 parts of bleached broad-leaved pulp, 10-20 parts of poplar chemi-mechanical pulp and 3-9 parts of inorganic filler; wherein the inorganic filler is a talc powder suspension with the concentration of 20 wt%. According to the invention, the inorganic filler is added into the flow system and the glue preparation system, so that the ash content of the finished paper reaches 10%, the production cost is reduced, the dimensional stability of the finished paper is greatly improved, the ink absorption performance of the paper can be improved by the inorganic filler, and the printing of downstream customers is facilitated.
Description
Technical Field
The invention relates to a non-woven wallpaper with high dimensional stability and low cost, and belongs to the technical field of non-woven wallpapers.
Background
The non-woven wallpaper is the most popular novel green environment-friendly wallpaper, is made of natural plant fibers such as cotton, hemp, wood pulp and the like and polyester fibers in a mixed mode, and has the advantages of being strong in tensile force, good in air permeability, good in waterproofness and the like. At first, domestic import is mainly relied on, the price is relatively high, each ton of paper is almost more than 5 ten thousand yuan, in recent years, domestic continuous manufacturers start to produce the non-woven wallpaper, the price is reduced to different degrees every year since the non-woven wallpaper is developed in China, the current price is about 1 ten thousand yuan per ton of paper, the product quality is rapidly reduced due to vicious competition, such as air permeability reduction, printing performance reduction, softness reduction and the like, most of the downstream customers have headache, the dimensional stability of the paper is greatly reduced, namely the transverse expansion rate of the paper is increased, the transverse expansion rate of the paper is the ratio of the transverse size difference of the paper before and after moisture change to the transverse size before the moisture change, and the overprinting accuracy of the paper during printing is directly influenced. The factors influencing the transverse expansion and contraction rate of the paper mainly comprise:
(1) physicochemical properties of the pulp: the higher the hemicellulose content is, the larger the shrinkage rate is;
(2) the higher the beating degree is, the larger the expansion ratio is;
(3) the higher the degree of sizing of the paper is, the smaller the expansion rate is;
(4) in the papermaking process, the smaller the pulp mesh speed ratio is, the larger the expansion ratio is;
(5) the expansion and contraction rate of the paper is reduced by adding the filler.
When the price of the non-woven wallpaper is high, the product quality is stable, and the transverse expansion rate of the paper can reach within 0.2%. The non-woven wallpaper has good dimensional stability because a large amount of chemical fibers are added in the production process, and a large amount of high-cost resin glue is coated in the gluing process. The chemical fiber absorbs water and does not swell, and more resin glue can effectively prevent the wood pulp fiber from absorbing water and swelling, so that the paper has good dimensional stability. With the decrease of the price of the non-woven wallpaper, manufacturers continuously reduce the chemical fiber amount and the glue coating amount and replace common wood pulp (the price of the chemical fiber and the resin glue is 2-3 times of that of the wood pulp), so that the expansion rate of the paper is continuously increased, finally, the expansion rate of individual manufacturers even reaches 1.5%, and the problems of inaccurate overprinting of downstream customers and sharp increase of the rejection rate are directly caused. Although some simple patterns (varieties with few or even no overprinting times) can be normally produced, when the patterns are finally pasted on a wall, after the paper absorbs moisture in sticky rice glue, the paper is transversely lengthened, so that two pieces of paper are overlapped and arched, thereby causing rework waste and larger loss.
Disclosure of Invention
The invention aims to provide the non-woven wallpaper with high dimensional stability and low cost, solves the problems of product quality reduction, high production cost, high expansion and contraction rate and poor dimensional stability when the wallpaper market changes, and has the characteristics of low production cost, low expansion and contraction rate and wide market prospect.
The non-woven wallpaper with high dimensional stability and low cost is prepared from the following raw materials in percentage by mass:
wherein the inorganic filler is a talc powder suspension with the concentration of 20 wt%;
the preparation process of the non-woven wallpaper with high dimensional stability and low cost comprises the following steps:
raw material weighing → pulping → pulp mixing → approach system conveying of paper machine → head box → press part → front drying part → glue mixing and applying → rear drying part → press part → coiling part → slitting and rewinding packaging and warehousing
The method specifically comprises the following steps:
(1) crushing, grinding and preparing:
simultaneously putting the bleached needle pulp and the bleached broad-leaved pulp with the proportion into a pulp crusher for crushing, and putting the crushed pulp into a pre-grinding pool A; the poplar chemi-mechanical pulp with the proportion amount is also put into a pulp crusher to be crushed, and is put into a pre-grinding pool B after being crushed;
grinding the disintegrated bleached needle-leaf pulp and bleached broad-leaf pulp in a semi-free and semi-sticky pulping mode for later use, grinding the disintegrated poplar chemi-mechanical pulp in a mild defibering pulping mode for later use, sending the bleached needle-leaf pulp and the bleached broad-leaf pulp into a pulp preparation pool in proportion, and adding white water to dilute the pulp to a required concentration for later use;
(2) paper making:
pumping the prepared pulp in the pulp preparation pool in the step (1) to a head box through a flow system, and dehydrating to form wet paper sheets; wherein, in the flow system, the prepared inorganic filler is added at the inlet of the secondary fan pump, and the absolute dry addition amount is 40-60 kilograms per ton of paper;
guiding the wet paper formed by the net part to a pressing part for forced dehydration, then guiding the wet paper to a drying part for drying, feeding the dried paper into a sizing machine for sizing, and continuing to dry after sizing; wherein, in the latex preparation process, inorganic filler is added according to the addition amount of 20-40kg of paper per ton, and the filler is adhered to paper sheets in the gluing process;
and the dried paper is calendered and finished, then is rolled into a paper roll by a rolling part, and finally is slit, rewound, packaged and put in storage.
In the invention:
the cost of talcum powder is about 500 yuan per ton, the cost of common wood pulp is about 4500 yuan per ton, the ash content in the produced medium-ash product is 10%, the direct cost of paper per ton is saved by 400 yuan, the porosity and air permeability of the paper are increased after the inorganic filler is added, the paper is easier to dry, partial steam is saved, the production speed is improved, the indirect cost is about 300 yuan through calculation, and the comprehensive cost is saved by 700 yuan. Meanwhile, the paper expansion and contraction rate of the product can be stably controlled to be about 0.5%, so that the lowest production cost and expansion and contraction rate of domestic wallpaper at the present stage are achieved, and the competitive advantage of the product is greatly improved.
The invention has the following beneficial effects:
according to the invention, the inorganic filler is added into the flow system and the glue preparation system, so that the ash content of the finished paper reaches 10%, the production cost is reduced, the dimensional stability of the finished paper is greatly improved, the ink absorption performance of the paper can be improved by the inorganic filler, and the printing of downstream customers is facilitated.
Detailed Description
The present invention is further described below with reference to examples.
Example 1
The non-woven wallpaper with high dimensional stability and low cost is prepared from the following raw materials in percentage by mass:
wherein the inorganic filler is a talc powder suspension with the concentration of 20 wt%;
the preparation method comprises the following steps:
(1) crushing, grinding and preparing:
simultaneously putting the bleached needle pulp and the bleached broad-leaved pulp with the proportion into a pulp crusher for crushing, and putting the crushed pulp into a pre-grinding pool A; the poplar chemi-mechanical pulp with the proportion amount is also put into a pulp crusher to be crushed, and is put into a pre-grinding pool B after being crushed;
grinding the disintegrated bleached needle-leaf pulp and bleached broad-leaf pulp in a semi-free and semi-sticky pulping mode for later use, grinding the disintegrated poplar chemi-mechanical pulp in a mild defibering pulping mode for later use, sending the bleached needle-leaf pulp and the bleached broad-leaf pulp into a pulp preparation pool in proportion, and adding white water to dilute the pulp to a required concentration for later use;
(2) paper making:
pumping the prepared pulp in the pulp preparation pool in the step (1) to a head box through a flow system, and dehydrating to form wet paper sheets; wherein, in the flow system, the prepared inorganic filler is added at the inlet of the secondary fan pump, and the absolute dry addition amount is 50 kilograms per ton of paper;
guiding the wet paper formed by the net part to a pressing part for forced dehydration, then guiding the wet paper to a drying part for drying, feeding the dried paper into a sizing machine for sizing, and continuing to dry after sizing; wherein, in the latex preparation process, inorganic filler is added according to the addition of 30kg of paper per ton, and the filler is adhered to paper sheets in the gluing process;
and the dried paper is calendered and finished, then is rolled into a paper roll by a rolling part, and finally is slit, rewound, packaged and put in storage.
Claims (1)
1. The non-woven wallpaper with high dimensional stability and low cost is characterized in that: the material is prepared from the following raw materials in percentage by mass:
wherein the inorganic filler is a talc powder suspension with the concentration of 20 wt%;
the preparation method comprises the following steps:
(1) crushing, grinding and preparing:
simultaneously putting the bleached needle pulp and the bleached broad-leaved pulp with the proportion into a pulp crusher for crushing, and putting the crushed pulp into a pre-grinding pool A; the poplar chemi-mechanical pulp with the proportion amount is also put into a pulp crusher to be crushed, and is put into a pre-grinding pool B after being crushed;
grinding the disintegrated bleached needle-leaf pulp and bleached broad-leaf pulp in a semi-free and semi-sticky pulping mode for later use, grinding the disintegrated poplar chemi-mechanical pulp in a mild defibering pulping mode for later use, sending the bleached needle-leaf pulp and the bleached broad-leaf pulp into a pulp preparation pool in proportion, and adding white water to dilute the pulp to a required concentration for later use;
(2) paper making:
pumping the prepared pulp in the pulp preparation pool in the step (1) to a head box through a flow system, and dehydrating to form wet paper sheets; wherein, in the flow system, the prepared inorganic filler is added at the inlet of the secondary fan pump;
guiding the wet paper formed by the net part to a pressing part for forced dehydration, then guiding the wet paper to a drying part for drying, feeding the dried paper into a sizing machine for sizing, and continuing to dry after sizing; wherein, in the latex preparation process, inorganic filler is added according to the addition amount of 20-40kg of paper per ton, and the filler is adhered to paper sheets in the gluing process;
the dried paper is calendered and finished and then is rolled into a paper roll by a rolling part, and finally, the paper is cut, rewound, packaged and put in storage;
and (3) in the step (2), the absolute dry addition amount of the inorganic filler added at the inlet of the secondary fan pump is 40-60 kg per ton of paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710769205.XA CN107313304B (en) | 2017-08-31 | 2017-08-31 | Non-woven wallpaper with high dimensional stability and low cost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710769205.XA CN107313304B (en) | 2017-08-31 | 2017-08-31 | Non-woven wallpaper with high dimensional stability and low cost |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107313304A CN107313304A (en) | 2017-11-03 |
| CN107313304B true CN107313304B (en) | 2021-10-19 |
Family
ID=60177070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710769205.XA Active CN107313304B (en) | 2017-08-31 | 2017-08-31 | Non-woven wallpaper with high dimensional stability and low cost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107313304B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109385925A (en) * | 2017-08-02 | 2019-02-26 | 浙江佳维康特种纸有限公司 | A kind of paper wet manufacturing process of high dimensional stability |
| CN108425286A (en) * | 2018-05-25 | 2018-08-21 | 南京林业大学 | Environmentally friendly nonwoven wallpaper body paper and its production method |
| CN108824093A (en) * | 2018-08-10 | 2018-11-16 | 南京林业大学 | A kind of production method reducing hanging raw stock expansion and contraction |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435169A (en) * | 2008-12-22 | 2009-05-20 | 浙江华邦特种纸业有限公司 | High performance wallpaper base paper pulp and process for producing wallpaper base paper using the same |
| CN105064113A (en) * | 2015-08-11 | 2015-11-18 | 湛江晨鸣浆纸有限公司 | Technique for manufacturing high-performance printing paper |
| CN105544288A (en) * | 2015-12-03 | 2016-05-04 | 浙江理工大学 | Preparation method of raw paper of wallpaper with high bulk |
-
2017
- 2017-08-31 CN CN201710769205.XA patent/CN107313304B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435169A (en) * | 2008-12-22 | 2009-05-20 | 浙江华邦特种纸业有限公司 | High performance wallpaper base paper pulp and process for producing wallpaper base paper using the same |
| CN105064113A (en) * | 2015-08-11 | 2015-11-18 | 湛江晨鸣浆纸有限公司 | Technique for manufacturing high-performance printing paper |
| CN105544288A (en) * | 2015-12-03 | 2016-05-04 | 浙江理工大学 | Preparation method of raw paper of wallpaper with high bulk |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107313304A (en) | 2017-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106894268B (en) | A kind of high-strength cow boxboard and preparation method thereof | |
| CN107313304B (en) | Non-woven wallpaper with high dimensional stability and low cost | |
| CN102561091B (en) | High strength linerboard making technology with low wood pulp dosage | |
| CN106993820B (en) | A kind of high bulk papermaking-method reconstituted tobaccos fiber composition and preparation method and application | |
| CN103397559A (en) | Waterproof recycled paper and production method thereof | |
| CN107254797B (en) | The production technology of paper and lower paper on a kind of protecting paper of gypsum board | |
| WO2015173474A1 (en) | Method of producing boards | |
| CN102877355B (en) | Polylactic acid forming paper and preparation method | |
| CN114481659B (en) | High-strength craft paper and production process thereof | |
| CN103015258A (en) | Manufacturing process for macerative masking tape | |
| CN102002892A (en) | Production process of low-quantitative straw wrapping paper | |
| CN102899957A (en) | Production method for lining paper for cigarette | |
| CN112442922A (en) | Method for producing degradable mulching film paper by using bamboo pulp | |
| CN104911951A (en) | High-performance non-woven wallpaper base paper and preparation method and application thereof | |
| CN107460785A (en) | A kind of environmental protection liner paper and its production method | |
| CN104631201B (en) | The technique that a kind of waste paper recycling produces low gram weight and high strength degree heavy wrapping craft paper | |
| CN106283884A (en) | A kind of high-air-permeability sheet type cigarette paper being applicable to cigar and preparation method thereof | |
| CN109024054A (en) | High-air-permeability filter stick shaping paper and its production method | |
| CN110258155B (en) | TF series paper tube base paper and preparation process thereof | |
| CN104631195A (en) | Method for manufacturing low-basis-weight and high-strength corrugated base paper for micro corrugated board production | |
| CN101985819A (en) | Process for producing low-basis-weight waxed base paper | |
| CN104195877A (en) | Yellow card paper and manufacturing method thereof | |
| CN112391866A (en) | Method for producing food packaging paper by using bagasse pulp | |
| CN101654164B (en) | Paper strapping tape and preparation process thereof | |
| CN111395049A (en) | E-grade paper tube base paper and preparation process thereof |
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 | ||
| CB03 | Change of inventor or designer information |
Inventor after: Xu Ruyi Inventor after: Song Dianfeng Inventor before: Xu Ruyi |
|
| CB03 | Change of inventor or designer information | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |