CN102766300A - Stone paperboard for file folder and preparation method thereof - Google Patents

Abstract

The invention provides a stone paperboard for a file folder. The stone paperboard comprises the components by weight: 40-65% of inorganic powder, 25-50% of PP (polypropylene) non-toxic resin, 1-5% of coloring aggregates, 1-2% of aluminate coupling agent, 1-2% of polyethylene wax and 1-2% of paraffin wax, and stone paperboard file folders in different colors can be made through heating, mixing, banburying, extrusion granulating, mixing and extrusion to form sheets. Compared with a pure PP file folder, the stone paperboard file folder reduces 20-30% of cost of production. Compared with a polyvinyl chloride (PVC) file folder, risks of poisonous and harmful elements on human bodies are fundamentally solved. Compared with a traditional paper file folder, the stone paperboard file folder has excellent waterproofness except for unanimous purposes and characteristics and similar appearance and texture.

Description

The documentation folder is with stone cardboard and preparation method thereof

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Technical field

The present invention relates to a kind of documentation folder with stone cardboard and preparation method thereof, belong to the stone papermaking technical field.

Background technology

The material of traditional file folder, information kit etc. is PP, PVC sheet material mostly.Wherein, the PP sheet material is a kind of harder plastic material, belongs to the hemicrystalline material; PP belongs to the oil by-product, in short supply along with petroleum resources, and price goes up day by day; Cause its by-product price also to go up thereupon,, have only 12% to be mineral filler because the used raw material major part of preparation PP sheet material is pure PP all; Therefore, the folder, the information kit production cost that cause the PP sheet material to be made are higher.PVC is a kind of synthetic materials, and major ingredient is a SE, because SE contains poisonous harmful element, country forbids strictly on its article that use is direct at folder, information kit etc. with human body contacts.Therefore, must improve prior art.

Summary of the invention

For overcome existing instrument folder, information kit material produce cost is high, or contains poisonous objectionable impurities and influences problem such as HUMAN HEALTH, the present invention provides a kind of safe material---stone cardboard and preparation method thereof that is used to make the documentation folder.

The present invention is to provide a kind of like this documentation folder and use the stone cardboard, it is characterized in that processing by following proportion of masses:

Inorganic powder 40～65%

PP does not have toxiresin 25～50%

Coloring granule 1～5%

Aluminate coupling agent 1～2%

Polyethylene wax 1～2%

Paraffin 1～2%

Wherein, inorganic powder is a kind of or any several kinds combination in Paris white, talcum powder, zeyssatite, kaolin, the flyash;

PP does not have toxiresin and is made up of following proportion of masses: 35～45% copolymerization PP does not have the homopolymerization PP of toxiresin and 55～65% and does not have toxiresin.

Said inorganic powder is 800～1250 purpose powder.

Said coloring granule is the polypropylene color pellet, according to the demand of documentation folder, selects white pellet, ?look pellet, red granules, yellow pellet, green pellet, blue pellet, grey pellet.

Each component raw material according to the invention is commercial technical grade product.

Documentation folder provided by the invention prepares through following method with the stone cardboard:

A, get the raw materials ready by following mass ratio:

Inorganic powder 40～65%

PP does not have toxiresin 25～50%

Coloring granule 1～5%

Aluminate coupling agent 1～2%

Polyethylene wax 1～2%

Paraffin 1～2%

Wherein, inorganic powder is a kind of or any several kinds combination in Paris white, talcum powder, zeyssatite, kaolin, the flyash;

PP does not have toxiresin and is made up of following proportion of masses: 35～45% COPP resin and 55～65% HOPP resin;

B, inorganic powder is put into mixing machine, be heated with stirring to 80～120 ℃, in whipping process, be interrupted the adding aluminate coupling agent, add polyethylene wax, paraffin again, adding PP does not at last have toxiresin, mix, compound;

C, send Banbury mixer, single screw rod or twin screw extruder extruding pelletization, must expect grain step B gained compound;

D, the material grain that step C is made and coloring granule are sent into mixer and are mixed, the compound grain;

E, send individual layer, two-layer or three-layer co-extruded rolling press to extrude step D gained compound grain, the thick sheet material of 0.5～0.75mm.

Said step e resulting sheet is processed into the documentation folder with existing documentation folder processing units and working method and gets final product according to customer need.

Advantage of the present invention and effect are: the stone cardboard that adopts such scheme to obtain, and the stone cardboard documentation that can make different colours is pressed from both sides, and this stone cardboard documentation folder is compared with pure PP documentation folder, and production cost has reduced by 20～30%; Compare with PVC documentation folder, fundamentally solved poisonous and harmful element and given the healthy threat that brings of people; Compare with the traditionally on paper folder, it is consistent to remove the purposes characteristic, outside outward appearance, texture are close, has more superior water resistance.

Embodiment

Below in conjunction with embodiment the present invention is done to further describe, be not limited thereto but hold within the present invention.

Embodiment 1

A kind of be used to make documentation Jia De ?colored stone head cardboard, through the following step:

A, get the raw materials ready by following mass ratio:

1250 purpose Paris whites 65%

COPP resin 13%

HOPP resin 17%

?look pellet 1%

Aluminate coupling agent 2%

Polyethylene wax 1%

Paraffin 1%

B, the Paris white of steps A is put into mixing machine, be heated with stirring to 80 ℃, in whipping process, be interrupted the adding aluminate coupling agent, add polyethylene wax, paraffin again, adding PP does not at last have toxiresin, mix, compound;

C, send Banbury mixer, single screw extrusion machine extruding pelletization, must expect grain step B gained compound;

D, the material grain that step C is made and coloring granule are sent into mixer and are mixed, the compound grain;

E, send the individual layer rolling press to extrude step D gained compound grain, the thick sheet material of 0.75mm;

F, with the step e resulting sheet according to customer need, with existing documentation folder processing units and working method processing, promptly get the thick black documentation of 0.75mm and press from both sides.

Embodiment 2

A kind of blue stone cardboard that is used to make the documentation folder, process the following step:

A, get the raw materials ready by following mass ratio:

1100 purpose Paris whites 20%

1100 purpose talcum powder 20%

COPP resin 22%

HOPP resin 27%

Blue pellet 5%

Aluminate coupling agent 2%

Polyethylene wax 2%

Paraffin 2%

B, Paris white, the talcum powder of steps A are put into mixing machine, be heated with stirring to 120 ℃, in whipping process, be interrupted the adding aluminate coupling agent; Add polyethylene wax, paraffin again; Add COPP resin, HOPP resin at last, mix, get compound;

C, send Banbury mixer, twin screw extruder extruding pelletization, must expect grain step B gained compound;

D, the material grain that step C is made and blue pellet are sent into mixer and are mixed, the compound grain;

E, send three-layer co-extruded rolling press to extrude step D gained compound grain, the thick sheet material of 0.7mm;

F, with the step e resulting sheet according to customer need, with existing documentation folder processing units and working method processing, promptly get the thick blue documentation of 0.7mm and press from both sides.

Embodiment 3

A kind of fruit green stone cardboard that is used to make the documentation folder, process the following step:

A, get the raw materials ready by following mass ratio:

1000 purpose flyash 30%

1000 purpose kaolin 20%

1000 purpose zeyssatite 15%

COPP resin 10%

HOPP resin 15%

Fruit green pellet 5%

Aluminate coupling agent 1.5%

Polyethylene wax 1.5%

Paraffin 2%

B, the flyash with steps A, kaolin, zeyssatite are put into mixing machine, are heated with stirring to 100 ℃, in whipping process, are interrupted the adding aluminate coupling agent; Add polyethylene wax, paraffin again; Add COPP resin, HOPP resin at last, mix, get compound;

C, send Banbury mixer, twin screw extruder extruding pelletization, must expect grain step B gained compound;

D, the material grain that step C is made and fruit green pellet are sent into mixer and are mixed, the compound grain;

E, send three-layer co-extruded rolling press to extrude step D gained compound grain, the thick sheet material of 0.65mm;

F, with the step e resulting sheet according to customer need, with existing documentation folder processing units and working method processing, promptly get the thick fruit green documentation of 0.65mm and press from both sides.

Embodiment 4

A kind of red stone cardboard that is used to make the documentation folder, process the following step:

A, get the raw materials ready by following mass ratio:

800 purpose flyash 25%

800 purpose talcum powder 15%

800 purpose Paris whites 10%

800 purpose kaolin 6%

COPP resin 20%

HOPP 20%

Red granules 1%

Aluminate coupling agent 1%

Polyethylene wax 1%

Paraffin 1%

B, the flyash with steps A, talcum powder, Paris white, kaolin are put into mixing machine; Be heated with stirring to 90 ℃; In whipping process, be interrupted the adding aluminate coupling agent, add polyethylene wax, paraffin again, add COPP resin, HOPP resin at last; Mix, get compound;

C, send Banbury mixer, single screw extrusion machine extruding pelletization, must expect grain step B gained compound;

D, the material grain that step C is made and red granules are sent into mixer and are mixed, the compound grain;

E, send two-layer rolling press to extrude step D gained compound grain, the thick sheet material of 0.5mm;

F, with the step e resulting sheet according to customer need, with existing documentation folder processing units and working method processing, promptly get the thick red documentation of 0.5mm and press from both sides.

Claims (3)

1. a documentation folder is used the stone cardboard, it is characterized in that being processed by following proportion of masses:

Inorganic powder 40～65%

PP does not have toxiresin 25～50%

Coloring granule 1～5%

Aluminate coupling agent 1～2%

Polyethylene wax 1～2%

Paraffin 1～2%

Wherein, inorganic powder is a kind of or any several kinds combination in Paris white, talcum powder, zeyssatite, kaolin, the flyash;

PP does not have toxiresin and is made up of following proportion of masses: 35～45% copolymerization PP does not have the homopolymerization PP of toxiresin and 55～65% and does not have toxiresin.

2. documentation folder as claimed in claim 1 is used the stone cardboard, it is characterized in that said inorganic powder is 800～1250 purpose powder.

3. a documentation is pressed from both sides the preparation method with the stone cardboard, it is characterized in that through the following step:

A, get the raw materials ready by following mass ratio:

Inorganic powder 40～65%

PP does not have toxiresin 25～50%

Coloring granule 1～5%

Aluminate coupling agent 1～2%

Polyethylene wax 1～2%

Paraffin 1～2%

Wherein, inorganic powder is a kind of or any several kinds combination in Paris white, talcum powder, zeyssatite, kaolin, the flyash;

PP does not have toxiresin and is made up of following proportion of masses: 35～45% COPP resin and 55～65% HOPP resin;

B, inorganic powder is put into mixing machine, be heated with stirring to 80～120 ℃, in whipping process, be interrupted the adding aluminate coupling agent, add polyethylene wax, paraffin again, adding PP does not at last have toxiresin, mix, compound;

C, send Banbury mixer, single screw rod or twin screw extruder extruding pelletization, must expect grain step B gained compound;

D, the material grain that step C is made and coloring granule are sent into mixer and are mixed, the compound grain;

E, send individual layer, two-layer or three-layer co-extruded rolling press to extrude step D gained compound grain, the thick sheet material of 0.5～0.75mm.