CN108286206A - Stone fiber papermaking method - Google Patents
Stone fiber papermaking method Download PDFInfo
- Publication number
- CN108286206A CN108286206A CN201810334543.5A CN201810334543A CN108286206A CN 108286206 A CN108286206 A CN 108286206A CN 201810334543 A CN201810334543 A CN 201810334543A CN 108286206 A CN108286206 A CN 108286206A
- Authority
- CN
- China
- Prior art keywords
- fiber
- paper
- stone
- papermaking
- agent
- 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.)
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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
- D21H13/00—Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material
- D21H13/10—Organic non-cellulose fibres
- D21H13/12—Organic non-cellulose fibres from macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H13/14—Polyalkenes, e.g. polystyrene polyethylene
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
-
- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F8/00—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof
- D01F8/04—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers
- D01F8/06—Conjugated, i.e. bi- or multicomponent, artificial filaments or the like; Manufacture thereof from synthetic polymers with at least one polyolefin as constituent
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Textile Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Paper (AREA)
Abstract
The invention discloses a kind of stone fiber papermaking methods, using inorganic particles such as powdered whiting, precipitated calcium carbonate, titanium dioxide as primary raw material, separately using toner as auxiliary material, use additive modification, and it is aided with and is kneaded that kneadings, fiber draw, auxiliary agent is mixed, fibre stuff prepares the obtained stone fibrous paper of the processes method such as finished product, it can avoid environmental pollution, it is energy saving, the performances such as waterproof, moisture-proof, mothproof, resistant to chemical etching, the high print distinctness of product are improved, there is good safety.The reduction of paper production cost improves the Environmental Protection Level of paper industry.
Description
Technical field
The invention belongs to stone paper fields, more particularly to a kind of to utilize the method for preparing stone paper.
Background technology
Paper be the mankind learn, work, indispensable one of important articles for use of living, the progress with social civilization and people
The continuous improvement of class living standard, the demand and consumption figure of paper product constantly increase.Conventional papermaking technique needs to cut down tree
Wood, the forest reserves, the water resource etc. of handy a large amount of preciousnesses, traditional paper-making process generate discharged waste water, discarded, waste to sky
Gas, soil, water body cause great pollution, and ecological environment is by serious destruction.Meanwhile the control of environmental pollution, it needs to throw
Enter a large amount of fund.
With the raising of global environmental consciousness and the continuous improvement of the progress of social civilization and human living standard, stone
Fibrous paper has become the substitute of conventional paper.Stone fibrous paper had both solved traditional paper-making pollution and had been asked to the harm that environment is brought
Topic, and can be energy saving, the production and application of stone paper plays an important role to the Environmental Protection Level for improving paper industry.
Our company has developed a kind of stone fiber papermaking method, can effectively solve energy waste, production cost height, environment dirt
The problems such as dye.
Invention content
For solve above-mentioned prior art energy waste, production cost is high, environmental pollution is big, print distinctness is low, Yi Chao,
The problems such as flattening property is poor, the present invention provides a kind of stone fiber papermaking method, by the powdered whiting of 75%-80%, lightweight carbonic acid
The inorganic particles such as calcium, talcum powder, wollastonite in powder, titanium dioxide put blender into and carry out uniformly mixed stir as primary raw material
It mixes, heating and temperature control is at 180 DEG C -260 DEG C；It adds 1.5% ~ 2.5% agent mixture to be modified inorganic particle, mix
It closes object auxiliary agent to carry out being uniformly mixed stirring, at 180-260 DEG C, heating time in 10 ~ 20min, is modified heating and temperature control
Treated inorfil powder；In modified treated inorfil powder, 15%-25% toners are added, into
Row is mixed and stirred for uniformly, being mediated using twin-screw, heating temperature is at 180 DEG C ~ 260 DEG C；Mixture is carried out heating to add
The plasticizings kneading processing such as pressure, stirring, mixing, forms initial melt material；Again by the single screw extrusion machine equipped with mixing section into
The secondary mixing of row, and obtain final pressure fused materials in extrusion to surge tank body；The fused materials carry out fiber drawing
Silk processing, forms fibre material, stone fiber paper product is prepared by fibre material.
As improvement of the present invention, fiber draw processing is equably to squeeze out fused materials simultaneously to spinneret
Traction downwards provides cold wind from both sides to the material in distraction procedure and forces air draught downwards, to form fibre diameter as 1-50
Filament between micron；
The uniform ground resistance of filament after traction, which is fallen, is laid in the first carrying net surface, and is formed not in the first carrying net surface
The non-woven fabric-like fiber is imported fibre cutting machine, quilt by the non-woven fabric-like fiber of rule after first bearer network stripping
It is cut to the staple fiber of length 1-5mm, forms the fibre material.
Be further improved as to this law, the stone fibrous finished product be by fibre material by screw pump pump to
Head box, and papermaking lapper surface is equably sprayed on by head box；
After the papermaking lapper evenly operates the fibre material on its surface to pressure roller, and the pressure roller will squeeze
Fibre material send to vacuum suction roller into vacuum adsorbed processing, it is fine that vacuum suction treated fibre stuff forms paper-like
Dimension, and the paper-like fiber is equably layed in the surface of the papermaking lapper；
It by the paper-like fiber from the papermaking lapper sur-face peeling, and is transported to the second bearer network and carries out heated-air drying, obtain
Paper-like fiber after to drying；
Paper-like fiber after drying is imported into sizing applicator and carries out sizing processing, and will sizing treated that paper-like fiber carries out hot wind
After drying, the stone paper of 80 um-200 um thickness is made.
As a further refinement of the present invention, the coupling agent is at least one of stearic acid, titanate ester.This hair
The bright coupling agent used substitutes common silane coupling agent, improves the compatibility of inorganic particle and toner, improves inorganic
Binding force between powder, binding force enhancing, compatibility is strong, and modified effect is good.It enhances product performance, thermal stability.It can make
The indexs such as shock resistance, stretching rise.Adhesive force can be made to significantly increase.
As a further refinement of the present invention, the toner includes polypropylene and polyethylene and respective percentage
Accounting is polymerized ethylene content 65% ~ 80%, polypropylene 20% ~ 35%.
As a further refinement of the present invention, the foaming agent is alkanes.
The beneficial effects of the invention are as follows：First, it is environmentally friendly, in production process, waste water, discarded, waste residue are not generated, has not been generated
Poisonous gas, heavy metal free pollution, need not add a large amount of strong acid, highly basic, bleaching powder and numerous organic chlorides.
Second, energy saving, in production process, required raw material is mineral resources natural inorganic powder the abundantest on the earth
As primary raw material, a large amount of timber is not needed, does not need a large amount of water.
Third, good physical performance, a kind of product that stone fiber papermaking method is produced both had had identical as conventional paper
Whiteness and opacity, and with the multinomial performance better than conventional paper, such as waterproof, moisture-proof, mothproof, resistant to chemical etching, high
The various features such as print distinctness, good mechanical property, the good, surface smoothness of flattening property be good and degradable.
Fourth, security performance：The product that this method is produced, surface based inorganic material, resin are also avirulent, docking
Tactile article does not have harmful effect, meanwhile, stone paper does not absorb water, mould is also difficult to be attached to paper, therefore with preferable safety
Property, and the processing of waste paper is also very safe, will not cause land pollution.
Specific implementation mode
It is described in detail the following detailed description of the preferred embodiment of the present invention, so that advantages and features of the invention can be more
It is easy to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
For the difference for the purposes that stone paper uses, the specific share of each component also has some differences in formula, for
Different purposes is applied to using different proportionings is significantly more efficient in life, is had below with regard to the difference formula of stone paper purposes
Body explanation.
Embodiment
Powdered whiting 40%
Precipitated calcium carbonate 25%
Talcum powder 5%
Wollastonite in powder 5%
Titanium dioxide 5%
Coupling agent 1.5%
Dispersant 0.7%
Brightening agent 0.1%
Antistatic agent 0.2%
Polyethylene 12%
Polypropylene 5%
Alkanes foaming agent 0.5%.
The inorganic particles such as the powdered whiting of 75%-80%, precipitated calcium carbonate, talcum powder, wollastonite in powder, titanium dioxide are made
For primary raw material, puts blender into and carry out being uniformly mixed stirring, heating and temperature control is at 180 DEG C -260 DEG C；Add 1.5% ~
2.5% agent mixture is modified inorganic particle, and mixture auxiliary agent carries out being uniformly mixed stirring, and heating and temperature control exists
180-260 DEG C, heating time in 10 ~ 20min, obtains the inorfil powder after modification；In modified treated nothing
In machine fiber powder, 15%-25% toners are added, be mixed and stirred for uniformly, being mediated, being heated using twin-screw
Temperature is at 180 DEG C ~ 260 DEG C；Mixture is subjected to the plasticizings kneading such as heating pressurization, stirring, mixing processing, forms initial melt object
Material；Secondary mixing is carried out by single screw extrusion machine equipped with mixing section again, and is squeezed out final equal to obtaining in surge tank body
Press fused materials；The fused materials carry out fiber draw processing, form fibre material, stone is prepared by fibre material
Fiber paper product.
In addition, the fiber draw processing is equably to squeeze out fused materials to spinneret and draw downwards, to leading
Material during drawing provides cold wind from both sides and forces air draught downwards, is the fiber between 1-50 microns to form fibre diameter
Silk；
The uniform ground resistance of filament after traction, which is fallen, is laid in the first carrying net surface, and is formed not in the first carrying net surface
The non-woven fabric-like fiber is imported fibre cutting machine, quilt by the non-woven fabric-like fiber of rule after first bearer network stripping
It is cut to the staple fiber of length 1-5mm, forms the fibre material.
Further more, the stone fibrous finished product is to pump fibre material to head box by screw pump, and starched by flowing
Case is equably sprayed on papermaking lapper surface；
After the papermaking lapper evenly operates the fibre material on its surface to pressure roller, and the pressure roller will squeeze
Fibre material send to vacuum suction roller into vacuum adsorbed processing, it is fine that vacuum suction treated fibre material forms paper-like
Dimension, and the paper-like fiber is equably layed in the surface of the papermaking lapper；
It by the paper-like fiber from the papermaking lapper sur-face peeling, and is transported to the second bearer network and carries out heated-air drying, obtain
Paper-like fiber after to drying；
Paper-like fiber after drying is imported into sizing applicator and carries out sizing processing, and will sizing treated that paper-like fiber carries out hot wind
After drying, stone fibrous paper is made.
The product form and style of above-described embodiment and the non-limiting present invention, the ordinary skill people of any technical field
The appropriate changes or modifications that member does it all should be regarded as the patent category for not departing from the present invention.
Claims (9)
1. a kind of stone fiber papermaking method, it is characterised in that：By the powdered whiting, precipitated calcium carbonate, talcum of 75%-80%
The inorganic particles such as powder, wollastonite in powder, titanium dioxide put blender into and carry out being uniformly mixed stirring, heating as primary raw material
Temperature is controlled at 180 DEG C -260 DEG C；It adds 1.5% ~ 2.5% agent mixture to be modified inorganic particle, mixture helps
Agent carries out being uniformly mixed stirring, and heating and temperature control is at 180-260 DEG C, and heating time is after 10 ~ 20min, acquisition modification
Inorfil powder；In modified treated inorfil powder, 15%-25% toners are added, are mixed
And stir evenly, it is mediated using twin-screw, heating temperature is at 180 DEG C ~ 260 DEG C；Mixture is subjected to heating pressurization, is stirred
It the plasticizings kneading processing such as mixes, be kneaded, forming initial melt material；It is carried out again by the single screw extrusion machine equipped with mixing section secondary
It is kneaded, and final pressure fused materials is obtained in extrusion to surge tank body；The fused materials carry out fiber draw processing,
Fibre material is formed, stone fiber paper product is prepared by fibre material.
2. stone fiber papermaking method according to claim 1, it is characterised in that：The fiber draw processing is will to melt
Melt material equably to squeeze out to spinneret and draw downwards, cold wind is provided from both sides to the material in distraction procedure and forces downwards
Air draught is the filament between 1-50 microns to form fibre diameter；
The uniform ground resistance of filament after traction, which is fallen, is laid in the first carrying net surface, and is formed not in the first carrying net surface
The non-woven fabric-like fiber is imported fibre cutting machine, quilt by the non-woven fabric-like fiber of rule after first bearer network stripping
It is cut to the staple fiber of length 1-5mm, forms the fibre material.
3. stone fiber papermaking method according to claim 1, it is characterised in that：The stone fibrous finished product is will be fine
Dimension material is pumped by screw pump to head box, and papermaking lapper surface is equably sprayed on by head box；
After the papermaking lapper evenly operates the fibre material on its surface to pressure roller, and the pressure roller will squeeze
Fibre stuff send to vacuum suction roller into vacuum adsorbed processing, it is fine that vacuum suction treated fibre stuff forms paper-like
Dimension, and the paper-like fiber is equably layed in the surface of the papermaking lapper；
It by the paper-like fiber from the papermaking lapper sur-face peeling, and is transported to the second bearer network and carries out heated-air drying, obtain
Paper-like fiber after to drying；
Paper-like fiber after drying is imported into sizing applicator and carries out sizing processing, and will sizing treated that paper-like fiber carries out hot wind
After drying, the stone paper of 80 um-200 um thickness is made.
4. stone fiber papermaking method according to claim 1, it is characterised in that：Respective percentage in the inorganic particle
It is than accounting：Powdered whiting 45% ~ 60%, precipitated calcium carbonate 25% ~ 40%, talcum powder 1% ~ 10%, titanium dioxide 1% ~ 10%, silicon ash
Mountain flour 1% ~ 10%.
5. stone fiber papermaking method according to claim 1, it is characterised in that：The powdered whiting, lightweight carbonic acid
Calcium, the granularities of the inorganic particles such as titanium dioxide be more than or equal to 1250 mesh.
6. stone fiber papermaking method according to claim 1, it is characterised in that：The each component hundred of the agent mixture
Divide than accounting and is：The coupling agent of 55%-65%, 25% ~ 35% dispersant, 0.5% ~ 5% brightening agent, 5% ~ 10% antistatic agent, are helped
Agent composition is first pre-processed, and agent mixture is processed mixing, stirring, discharging, cooling, spare.
7. stone fibrous paper papermaking process according to claim 5, it is characterised in that：The coupling agent is stearic acid, titanium
Any or a variety of mixing in esters of gallic acid.
8. stone fiber papermaking method according to claim 1, it is characterised in that：The toner include polypropylene and
Polyethylene and percentage accounting are polymerized ethylene content 65% ~ 80%, polypropylene 20% ~ 35%.
9. stone fiber papermaking method according to claim 1, it is characterised in that：The foaming agent is alkanes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810334543.5A CN108286206A (en) | 2018-04-14 | 2018-04-14 | Stone fiber papermaking method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810334543.5A CN108286206A (en) | 2018-04-14 | 2018-04-14 | Stone fiber papermaking method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108286206A true CN108286206A (en) | 2018-07-17 |
Family
ID=62834422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810334543.5A Pending CN108286206A (en) | 2018-04-14 | 2018-04-14 | Stone fiber papermaking method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108286206A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132787A (en) * | 2019-06-04 | 2019-08-16 | 福建省联盛纸业有限责任公司 | A kind of detection method of paper grade (stock) agstone |
| CN111778763A (en) * | 2019-06-26 | 2020-10-16 | 苏州鼎德电环保科技有限公司 | Method for processing environment-friendly stone fiber paper by recycling tailings |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1127312A (en) * | 1994-01-11 | 1996-07-24 | 青岛石棉制品总厂 | Asbestos yarn producing method from asbestos short fibre fettling paper |
| US20030121629A1 (en) * | 2001-12-19 | 2003-07-03 | Kimberly-Clark Worldwide, Inc. | Use of fractionated fiber furnishes in the manufacture of tissue products, and products produced thereby |
| CN101831835A (en) * | 2010-05-01 | 2010-09-15 | 陈美章 | Stone papermaking method |
| CN102373651A (en) * | 2010-08-23 | 2012-03-14 | 佛山市正大天地环保材料有限公司 | Stone paper and its processing method |
| CN103061200A (en) * | 2011-10-19 | 2013-04-24 | 香港格林天使科技有限公司 | Novel environment-friendly stone paper and preparation method thereof |
| CN105128360A (en) * | 2015-07-30 | 2015-12-09 | 成都新柯力化工科技有限公司 | Flexible inorganic fiber paper and making method thereof |
| CN105152578A (en) * | 2015-08-31 | 2015-12-16 | 成都新柯力化工科技有限公司 | Method for manufacturing stone paper from mineral fibers |
| CN105482222A (en) * | 2015-12-23 | 2016-04-13 | 成都新柯力化工科技有限公司 | Buffer composite packaging paper and preparation method thereof |
| CN106958163A (en) * | 2017-04-01 | 2017-07-18 | 陈美章 | A kind of manufacture method and its system of processing of staple fibre paper |
| CN207091826U (en) * | 2017-04-01 | 2018-03-13 | 福建省大投科技有限公司 | A kind of system of processing of staple fibre paper |
-
2018
- 2018-04-14 CN CN201810334543.5A patent/CN108286206A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1127312A (en) * | 1994-01-11 | 1996-07-24 | 青岛石棉制品总厂 | Asbestos yarn producing method from asbestos short fibre fettling paper |
| US20030121629A1 (en) * | 2001-12-19 | 2003-07-03 | Kimberly-Clark Worldwide, Inc. | Use of fractionated fiber furnishes in the manufacture of tissue products, and products produced thereby |
| CN101831835A (en) * | 2010-05-01 | 2010-09-15 | 陈美章 | Stone papermaking method |
| CN102373651A (en) * | 2010-08-23 | 2012-03-14 | 佛山市正大天地环保材料有限公司 | Stone paper and its processing method |
| CN103061200A (en) * | 2011-10-19 | 2013-04-24 | 香港格林天使科技有限公司 | Novel environment-friendly stone paper and preparation method thereof |
| CN105128360A (en) * | 2015-07-30 | 2015-12-09 | 成都新柯力化工科技有限公司 | Flexible inorganic fiber paper and making method thereof |
| CN105152578A (en) * | 2015-08-31 | 2015-12-16 | 成都新柯力化工科技有限公司 | Method for manufacturing stone paper from mineral fibers |
| CN105482222A (en) * | 2015-12-23 | 2016-04-13 | 成都新柯力化工科技有限公司 | Buffer composite packaging paper and preparation method thereof |
| CN106958163A (en) * | 2017-04-01 | 2017-07-18 | 陈美章 | A kind of manufacture method and its system of processing of staple fibre paper |
| CN207091826U (en) * | 2017-04-01 | 2018-03-13 | 福建省大投科技有限公司 | A kind of system of processing of staple fibre paper |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132787A (en) * | 2019-06-04 | 2019-08-16 | 福建省联盛纸业有限责任公司 | A kind of detection method of paper grade (stock) agstone |
| CN111778763A (en) * | 2019-06-26 | 2020-10-16 | 苏州鼎德电环保科技有限公司 | Method for processing environment-friendly stone fiber paper by recycling tailings |
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| PB01 | Publication | ||
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Application publication date: 20180717 |