CN108589430B - Preparation method and application of fiber molding - Google Patents
Preparation method and application of fiber molding Download PDFInfo
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- CN108589430B CN108589430B CN201810384993.5A CN201810384993A CN108589430B CN 108589430 B CN108589430 B CN 108589430B CN 201810384993 A CN201810384993 A CN 201810384993A CN 108589430 B CN108589430 B CN 108589430B
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J3/00—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
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Abstract
The invention relates to a preparation method of fiber molding and application thereof, comprising a pulping step and a molding step, wherein the pulping step comprises the steps of preparing chemical fibers into chemical fiber slurry with preset concentration; the molding step comprises the step of sending the prepared slurry to a fiber forming machine to prepare a molded semi-finished product. The fiber molding product of the invention is different from the traditional molding product which is only limited to plant fiber, and the chemical fiber product has very good physical and chemical properties, and has a series of excellent characteristics of high strength, low shrinkage, high elasticity, acid resistance, alkali resistance, electrical insulation resistance and the like. The method is widely applied to industries such as industry, war industry, architectural decoration, household articles, toys, models and the like. With the development of science and technology, there are hundreds of chemical fibers, and any product required by a user can be manufactured according to the product requirements.
Description
Technical Field
The invention relates to the field of product processing, in particular to a preparation method and application of fiber molding.
Background
The process expands the application range of raw materials on the basis of the original traditional paper pulp molding processing process, and is not only the traditional paper pulp raw material. The change of raw materials brings about a new manufacturing process.
Disclosure of Invention
The invention aims to provide a novel fiber molding preparation method and application thereof.
The technical scheme for solving the technical problems is as follows:
a fiber molding preparation method comprises a pulping step and a molding step, wherein the pulping step comprises the steps of preparing chemical fibers into chemical fiber slurry with a preset concentration; the molding step comprises the step of sending the prepared slurry to a fiber forming machine to prepare a molded semi-finished product.
The invention has the beneficial effects that: the fiber molding product of the invention is different from the traditional molding product which is only limited to plant fiber, and the chemical fiber product has very good physical and chemical properties, and has a series of excellent characteristics of high strength, low shrinkage, high elasticity, acid resistance, alkali resistance, electrical insulation resistance and the like. The method is widely applied to industries such as industry, war industry, architectural decoration, household articles, toys, models and the like. With the development of science and technology, there are hundreds of chemical fibers, and any product required by a user can be manufactured according to the product requirements.
Further, the pulping step further comprises the step of mixing plant fiber pulp and chemical fiber pulp which are prepared from plant fiber raw materials to a preset concentration before refining.
Further, the preparation method of the plant fiber slurry comprises the following steps:
1.1) pulping: pulping the plant fibers by using a low-concentration pulping machine until the beating degree is 40-45 ℃, and then diluting the pulp into thin pulp with the concentration of 3-4%;
1.2) grinding: sending the thin pulp to a pulp grinder, and secondarily grinding coarse fiber pulp clusters and the plant fibers which are not completely crushed by using the pulp grinder;
1.3) heavy deslagging: screening out heavy objects contained in the slurry through a high-concentration slag separator;
1.4) light screening: separating light impurities in the slurry by using a pressure sieve, and directly feeding the separated first slurry into a slurry forming tank; the light impurities are plastics or non-milled pulp mass;
1.5) vibration screening: and further screening the light impurities by using a pressure screen to obtain light impurity dry materials and second slurry, conveying the separated second slurry into a slurry forming tank, and mixing in the slurry forming tank to obtain the finished product slurry.
The beneficial effects of the above further scheme are: the mixed fiber molding product is a new technology and invention which organically combines plant fibers and chemical fibers. The characteristics of good toughness, high strength, electrical insulation, acid and alkali resistance and the like of the chemical fiber molded product are kept, and the characteristics of shock resistance, sound wave absorption, noise resistance and the like of the pulp molded product are also exerted.
Further, the plant fiber is one or more of straw, reed, cotton, bamboo, needle leaf, broad leaf and recycled waste paper.
The beneficial effects of the above further scheme are: given the variety of the plant fiber with stable sources, the user can select the plant fiber according to the needs of the user.
Furthermore, the pulping step of the chemical fiber is divided into a pulping step of finished chemical fiber and a pulp step of recycling textile according to different fiber sources.
Further, the pulping step of the finished chemical fiber comprises:
2.1) cutting the finished chemical fiber by using a filament cutter to obtain short chemical fiber;
2.2) conveying the short chemical fibers to a mixing tank to be uniformly mixed with water, wherein the concentration of the mixed short chemical fibers is 1-2%, conveying the short chemical fibers to a pulping tank, and mixing in the pulping tank to obtain the finished pulp.
The beneficial effects of the above further scheme are: provides a simple pulping scheme of finished fibers.
Further, the length of the short chemical fiber in the step 2.1) is 3-10 mm.
Further, the pulping step of recycling the textile fibers comprises:
3.1) crushing the recycled textiles to obtain recycled textile crushed materials;
3.2) carrying out slag discharge separation on the recovered textile crushed aggregates, and cleaning and disinfecting the separated textile crushed aggregates to obtain a textile clean material;
3.3) mixing the clean textile with water and pulping by using a pulping machine, wherein the concentration of the clean textile is 1-2%, conveying the obtained pulp to a pulp forming tank, and mixing in the pulp forming tank to obtain the finished pulp.
The beneficial effects of the above further scheme are: provides a simple pulping scheme for recycling textiles.
Further, the rotating speed of the refiner is 1000-1500 rpm.
The beneficial effects of the above further scheme are: the rotation speed control of the refiner is beneficial to better pulping of fibers.
The preparation method of the fiber molding is applied to the field of novel building decorative plates.
Detailed Description
The principles and features of this invention are described below in conjunction with embodiments, which are included to explain the invention and not to limit the scope of the invention.
The invention relates to a preparation method of fiber molding, which comprises a pulping step and a molding step, wherein the pulping step comprises the steps of preparing chemical fibers into chemical fiber slurry with a preset concentration; the molding step comprises the step of sending the prepared slurry to a fiber forming machine to prepare a molded semi-finished product.
The pulping step of the chemical fiber is divided into a pulping step of finished chemical fiber and a pulp step of recycling textile according to different fiber sources.
The pulping step of the finished chemical fiber comprises the following steps:
2.1) cutting the finished chemical fiber by using a filament cutter to obtain short chemical fiber;
2.2) conveying the short chemical fibers to a mixing tank to be uniformly mixed with water, wherein the concentration of the mixed short chemical fibers is 1-2%, and then conveying the short chemical fibers to a pulping tank. The length of the short chemical fiber in the step 2.1) is 3-10 mm.
The pulping step of the recycled textile fibers comprises the following steps:
3.1) crushing the recycled textiles to obtain recycled textile crushed materials;
3.2) carrying out slag discharge separation on the recovered textile crushed aggregates, and cleaning and disinfecting the separated textile crushed aggregates to obtain a textile clean material;
3.3) mixing the clean textile material with water and pulping by using a pulping machine, wherein the concentration of the clean textile material is 1-2%, and conveying the obtained pulp to a pulping tank.
On the basis of the scheme, the pulping step also comprises the steps of preparing plant fiber raw materials into plant fiber pulp with a preset concentration and mixing the plant fiber pulp with the chemical fiber pulp. The preparation method of the vegetable fiber slurry comprises the following steps:
1.1) pulping: pulping the plant fibers by using a low-concentration pulping machine until the beating degree is 40-45 ℃, and then diluting the pulp into thin pulp with the concentration of 3-4%;
1.2) grinding: sending the thin pulp to a pulp grinder, and secondarily grinding coarse fiber pulp clusters and the plant fibers which are not completely crushed by using the pulp grinder;
1.3) heavy deslagging: screening out heavy objects contained in the slurry through a high-concentration slag separator;
1.4) light screening: separating light impurities in the slurry by using a pressure sieve, and directly feeding the separated slurry into a slurry forming tank; the light impurities are plastics or non-milled pulp mass;
1.5) vibration screening: and (4) further screening the light impurities by using a pressure screen, and conveying the separated slurry into a slurry forming tank.
The plant fiber is one or more of straw, reed, cotton, bamboo, needle leaf, broad leaf and recycled waste paper.
In the above steps, the rotation speed of the refiner is 1000-1500 rpm. The rotation speed control of the refiner is beneficial to better pulping of fibers.
Meanwhile, the preparation method of the fiber molding can be applied to the field of preparing novel decorative plates for buildings, namely after obtaining a molded semi-finished product, performing art designing and dyeing die cutting according to requirements to prepare a decorative plate semi-finished product, performing die cutting on the decorative plate semi-finished product by a die cutting machine, and finally obtaining a decorative plate product after film coating/fireproof coating/art paint spraying.
In other words, the preparation method of fiber molding includes a pulping process and a molding process, and the pulping process can further include a pulping process of plant fibers and a pulping process of chemical fibers.
The pulping process of the plant fiber may further comprise: pulping: pulping one or more of straw pulp, reed, cotton pulp, bamboo pulp, needle leaf pulp, broad leaf pulp and recovered waste paper by a low-concentration pulping machine until the beating degree is 40-45 ℃, and then diluting to the concentration of 3-4%; grinding: the diluted pulp is pumped to a pulping machine, the pulping machine crushes coarse fiber pulp clusters and incompletely crushed pulp to plant fiber for separation, (the pulping machine is similar to a pump in structure and instantly passes through, the pulping process is completed after the pulp passes through, the rotating speed is generally 1000-1500rpm), and the ground pulp is sent to a discharge tank; heavy slag removal: because the slurry contains a small amount of stones and heavy objects of iron nails, the slurry in the discharge tank is screened out by a high-concentration slag separator, and the slurry is diluted to 3 percent of concentration by a concentration adjusting device before entering the high-concentration slag separator; light screening: plastic in the pulp is screened before the pulp mass is used without grinding, the pressure screen removes the substances, and the screened pulp directly enters a pulp forming tank; (ii) a Vibration screening: because a part of good pulp can be brought out along with plastic bags, pulp lumps and the like screened by the pressure screen, in order to save and reduce the slag discharge amount, the part of pulp is further screened by the vibrating frame screen, and the screened good pulp returns to the pulping tank; pulping: the pulp in the pulping tank passes through two thickening devices before being used by the upper machine, and finally the concentration of the pulp on the upper machine is controlled to be 1-1.5 percent, thus finishing the whole pulping process.
The pulping process of the chemical fiber can be as follows: cutting off the purchased finished chemical fiber raw material by using a filament cutter, wherein the size of the cut fiber is 3-10mm, 2. the cut fiber is conveyed into a pulp tank through a conveying system to be mixed with water, and the mixture is uniformly stirred in the pulp tank for standby application, wherein the concentration is controlled at 1-2%.
The pulping process of the chemical fiber can also be as follows: recycled textiles such as textile fiber yarns, fiber mesh cloth, fiber felts, fiber tubes, cotton cloth, old carpets, old clothes and the like are smashed by a carpet crusher and then sent to a pulp tank, and are mixed with water according to a proportion, and the concentration is controlled to be 1-2%; the recovered textiles are uniformly processed by the procedures of a crusher, slag discharge, pulp grinding, washing and the like.
And mixing one or more of the above pulp in a pulping tank, and then conveying the mixture to a fiber forming machine to prepare a molded semi-finished product.
The plant fiber molding product is a three-dimensional fiber molding technology. It uses various fibers as raw materials, and uses a special mould to mould a product with a certain shape on a moulding machine. The raw material is various plant fibers. Including the natural fiber raw materials, the source is wide. The manufacturing process is completed by the working procedures of pulping, adsorption molding, drying and shaping and the like, and is harmless to the environment; can be recycled and reused; the volume is smaller than that of the foamed plastic, and the foamed plastic can be overlapped and is convenient for transportation. Used for manufacturing various products.
The chemical fiber molding product is a new technology and invention. The traditional molded products are only limited to plant fibers, the quality of the plant fibers is more than ten, and the chemical fiber products have very excellent physical and chemical properties, and have a series of excellent characteristics of high strength, low shrinkage, high elasticity, acid resistance, alkali resistance, electrical insulation resistance and the like. The method is widely applied to industries such as industry, war industry, architectural decoration, household articles, toys, models and the like. With the development of science and technology, there are hundreds of chemical fibers, and any product required by a user can be manufactured according to the product requirements.
The mixed fiber molding product is a new technology and invention which organically combines plant fibers and chemical fibers. The characteristics of good toughness, high strength, electrical insulation, acid and alkali resistance and the like of the chemical fiber molded product are kept, and the characteristics of shock resistance, sound wave absorption, noise resistance and the like of the pulp molded product are also exerted.
The process can also be used in the field of processing of building decorative plates to expand the application range of raw materials. The traditional building decorative plate materials mainly comprise stone materials, ceramics, glass, plastics, chemical fiber bonding materials, metals and the like. The traditional decorative board of chemical fiber is made up by using special glue through the processes of sticking, forming and die-cutting. The product has single style, lacks aesthetic feeling and third dimension, and has more complex production procedures and low production efficiency.
The novel chemical fiber decorative board is produced through the process of stereo forming of slurry chemical fiber or mixed chemical fiber, softening and post-curing of the formed blank. The series of production procedures are completed on a two-station full-automatic fiber molding all-in-one machine with own proprietary intellectual property rights. The temperature control system of the machine can automatically control the softening and curing temperatures of chemical fiber molding products with low melting point and high melting point. Through a large amount of practical data, a whole set of softening and curing temperature curves of different chemical fibers and a production process for molding the chemical fibers are obtained. The process can permanently fix the deformation of the chemical fiber decorative plate, and the fibers still keep a weaving state. The method preserves the due performance of chemical fiber products, has wider application range, diversified styles, less production procedures and high efficiency.
During the manufacturing, various fiber raw materials are made into required pulp according to the pulping process (the pulping process). The slurry is pumped to a fiber molding machine for molding processing, the processed product is made into a semi-finished product through art designing, dyeing and die cutting, the semi-finished product is die-cut through a die cutting machine, and the finished product is finally a formal product after film coating, fireproof coating and art painting.
For example, the natural material decorative board can be made, namely the decorative board is made of pure plant fibers and is mainly applied to home interior decoration. The proportion of various plant fibers is as follows: the cotton pulp accounts for 20-30%; 10-20% of cane pulp and bamboo pulp; the commercial needle-leaf pulp accounts for 15-25%, the waste newspaper accounts for 25-40%, the other waste paper accounts for about 5%, and the drying temperature is controlled at 190 ℃ of 180-. The natural material decorative board features unsophisticated and natural style and rich natural smell. Environmental protection, no radioactive pollution, sound absorption and sound insulation. Can be directly used after decoration, and is the first choice for indoor decoration.
The fiber can also be used for manufacturing chemical fiber decorative plates, namely a product manufactured by pure chemical fibers, and is mainly applied to outdoor, hotels, meeting rooms, exhibition halls and wider application range. The fiber suitable for the chemical fiber material decorative plate is mainly divided into the following components in melting point: low melting point chemical fiber and high melting point chemical fiber, so the temperature control of chemical fiber products is strict in the shaping process. The chemical fiber is not softened and not solidified at a low temperature, and the chemical fiber is easy to melt at a high temperature. The molten chemical fiber is easy to adhere to the mold, is not suitable for production and processing, and destroys the physical and chemical properties of the chemical fiber.
The novel mixed fiber decorative board can be prepared by mixing pure plant fibers and chemical fibers in proportion. The plant fiber accounts for 30-40%; the chemical fiber accounts for 60-70%.
The application range of the decorative board preparation almost comprises the application range and the use characteristics of all natural fiber and chemical fiber materials, and the building decorative board prepared from the two fiber materials is synthesized and optimized. The various plant fibers and chemical fibers are suitable for producing the mixed material decorative plate. The manufacturing process of the mixed fiber decorative plate is similar to that of the chemical fiber decorative plate. The plant fiber and the chemical fiber are mutually cross-linked, so that the physical and chemical properties of the two fibers are kept in the product.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A fiber molding preparation method is characterized by being applied to the processing field of building decorative plates; the method comprises a pulping step and a molding step, wherein the pulping step comprises the steps of preparing chemical fibers into chemical fiber slurry, and further refining the chemical fiber slurry to obtain finished product slurry; the molding step comprises the steps of conveying the prepared finished product slurry into a fiber forming machine to prepare a molded semi-finished product; the pulping step also comprises the step of preparing plant fiber raw materials into plant fiber pulp with preset concentration and mixing the plant fiber pulp with the chemical fiber pulp before refining;
the pulping step of the chemical fiber is divided into two pulping steps of finished chemical fiber and textile recycling according to different fiber sources;
the pulping step of the finished chemical fiber comprises the following steps:
2.1) cutting the finished chemical fiber by using a filament cutter to obtain short chemical fiber;
2.2) conveying the short chemical fibers into a mixing tank to be uniformly mixed with water, conveying the mixed short chemical fibers to a pulping tank with the concentration of 1-2%, and mixing in the pulping tank to obtain finished pulp;
the length of the short chemical fiber in the step 2.1) is 3-10 mm;
the pulping step of the recycled textiles comprises:
3.1) crushing the recycled textiles to obtain recycled textile crushed materials;
3.2) carrying out slag discharge separation on the recovered textile crushed aggregates, and cleaning and disinfecting the separated textile crushed aggregates to obtain a textile clean material;
3.3) mixing the clean textile with water and pulping by using a pulping machine, wherein the concentration of the clean textile is 1-2%, conveying the obtained pulp to a pulp forming tank, and mixing in the pulp forming tank to obtain the finished pulp.
2. The method for preparing fiber molding according to claim 1, wherein the step of preparing the plant fiber slurry comprises:
1.1) pulping: pulping the plant fibers by using a low-concentration pulping machine until the beating degree is 40-45 ℃, and then diluting the pulp into thin pulp with the concentration of 3-4%;
1.2) grinding: sending the thin pulp to a pulp grinder, and secondarily grinding coarse fiber pulp clusters and the plant fibers which are not completely crushed by using the pulp grinder;
1.3) heavy deslagging: screening out heavy objects contained in the slurry through a high-concentration slag separator;
1.4) light screening: separating light impurities in the slurry by using a pressure sieve, and directly feeding the separated first slurry into a slurry forming tank; the light impurities are plastics or non-milled pulp mass;
1.5) vibration screening: and further screening the light impurities by using a pressure screen to obtain light impurity dry materials and second slurry, conveying the separated second slurry into a slurry forming tank, and mixing in the slurry forming tank to obtain the finished product slurry.
3. The method for preparing fiber molding according to claim 2, wherein the plant fiber is one or more of straw, reed, cotton, bamboo, needle leaf, broad leaf and recycled waste paper.
4. A method for preparing a fibre moulding according to any of claims 2, 3 and 1, characterized in that the refiner is operated at a speed of 1000-1500 rpm.
5. Use of a process for the preparation of a fibre moulding according to any of claims 1 to 4 in the field of novel decorative panels for buildings.
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| CN108589430B true CN108589430B (en) | 2020-08-14 |
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| CN114059390B (en) * | 2021-11-26 | 2024-05-07 | 绿赛可新材料(云南)有限公司 | Pulp molding solid-liquid grading injection pulping process |
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| CN105040512A (en) * | 2015-09-09 | 2015-11-11 | 长春高琦聚酰亚胺材料有限公司 | Polyimide paper molded product and preparation method thereof |
| CN106012656A (en) * | 2016-05-20 | 2016-10-12 | 苏州倍力特物流设备有限公司 | Environment-friendly high-barrier pulp molding composite material and preparation method thereof |
| CN106245463A (en) * | 2015-06-11 | 2016-12-21 | 金箭印刷事业有限公司 | Paper plastic forming method and paper finished product thereof |
| CN107354825A (en) * | 2017-08-01 | 2017-11-17 | 张宝华 | A kind of new paper mould processing technology and its mould |
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2018
- 2018-04-26 CN CN201810384993.5A patent/CN108589430B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463580A (en) * | 2009-01-09 | 2009-06-24 | 江阴延利汽车饰件有限公司 | Natural fibrilia decorative board |
| CN202181486U (en) * | 2011-08-09 | 2012-04-04 | 江苏五洲纸业有限公司 | Novel paperboard production device through papermaking sludge |
| CN106245463A (en) * | 2015-06-11 | 2016-12-21 | 金箭印刷事业有限公司 | Paper plastic forming method and paper finished product thereof |
| CN105040512A (en) * | 2015-09-09 | 2015-11-11 | 长春高琦聚酰亚胺材料有限公司 | Polyimide paper molded product and preparation method thereof |
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Effective date of registration: 20220125 Address after: Washington, DC Patentee after: Zhang IP Holding Co.,Ltd. Address before: No. 3101, taco Road, Tacoma, Washington, U. S. Patentee before: Zhang Baohua |