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A kind of production method of stone thick paper

A production method and stone technology, applied in the field of papermaking, can solve problems such as increasing costs, and achieve the effect of saving costs and meeting the needs of printing or heat sealing

Active Publication Date: 2019-07-26
SHANXI YU HAO DRAGON UNION ENVIRONMENTAL PAPER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, all stone thick papers on the market are double-sided coated or double-sided coated. If printing or heat sealing is required, coating or coating processing is also required, which increases costs.

Method used

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  • A kind of production method of stone thick paper
  • A kind of production method of stone thick paper
  • A kind of production method of stone thick paper

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 As shown, a production method of stone thick paper, the weighed parts are respectively 40PE, 5PS and 55 stone powder are sent to the feeding cylinder and mixed thoroughly, then sent to the double-screw internal mixer, and mixed at 200 ° C Mixing to form blocks. The block material that banburying is formed is sent into the main extruder, and the high-density polyethylene (HDPE) of 85 weight parts and the linear low density polyethylene (LLDPE) of 15 weight parts are mixed simultaneously and then added to the sub-extruder, and the main extruder is mixed. After extruding the material from the extruder and the auxiliary extruder to the T-shaped die, use 65 parts by weight of heavy calcium mud, 5 parts by weight of light calcium, 13.5 parts by weight of rubber emulsion, 6 parts by weight of acrylic resin, and 10 parts by weight of pure water Formulated into a coating formula, one-sided coating is carried out at 240°C to obtain a coating product, which is pu...

Embodiment 2

[0041] A production method of stone thick paper. The weighed parts are 35PE, 5PS and 60 stone powder, which are respectively sent into the feeding cylinder and mixed fully, then sent into a double-screw internal mixer, and mixed and internally kneaded at 180 ° C. Form blocks. The block material that banburying is formed is sent into the main extruder, and the high density polyethylene (HDPE) of 80 weight parts and the linear low density polyethylene (LLDPE) (LLDPE) of 20 weight parts are mixed at the same time and then added to the auxiliary extruder, and the main extruder is mixed. After extruding the materials of the extruder and the sub-extruder to the T-shaped die, use 60 parts by weight of heavy calcium mud, 4 parts by weight of light calcium, 15 parts by weight of rubber emulsion, 5 parts by weight of acrylic resin, and 15 parts by weight of pure water Formulated into a coating formula, coated at 250 degrees Celsius to obtain a coated product, after traction and cooling,...

Embodiment 3

[0043] A production method of stone thick paper. The weighed parts are 45PE, 3PS and 52 stone powder, which are respectively sent into the feeding cylinder and mixed fully, then sent into a double-screw internal mixer, and mixed and internally kneaded at 220 ° C. Form blocks. The block material that banburying is formed is sent into the main extruder, and the high density polyethylene (HDPE) of 90 weight parts and the linear low density polyethylene (LLDPE) of 10 weight parts are mixed at the same time and then added to the auxiliary extruder, and the main extruder is mixed. After extruding the material from the extruder and the auxiliary extruder to the T-shaped die, use 70 parts by weight of heavy calcium mud, 6 parts by weight of light calcium, 10 parts by weight of rubber emulsion, 9 parts by weight of acrylic resin, and 5 parts by weight of pure water Formulated into a coating formula, coated at 230 degrees Celsius to obtain a coated product, after traction and cooling, t...

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Abstract

The invention discloses a production method for thick stone paper. The production method comprises the following steps: sequentially placing polyethylene, polystyrene and stone powder in a charging barrel and adequately mixing, and then feeding the mixture to an internal mixer; feeding blocks formed by the internal mixer to a primary extruder, mixing high-density polyethylene with linear low-density polyethylene and then adding the mixture to a secondary extruder, extruding out the materials onto a T-shaped die head and then carrying out lamination to obtain a laminated product; carrying out traction and cooling on the laminated product, and then feeding the cooled product to a coating machine and coating the cooled product; and winding the coated product. The thick stone paper subjected to single-sided coating and single-sided lamination can be produced through adding the secondary extruder, carrying out a lamination process after the action of the extruder, and accurately controlling each process parameter, so as to meet a printing need or a heat-sealing need; and coating processing or lamination processing is not required any more, so that the cost is saved.

Description

technical field [0001] The invention relates to the technical field of papermaking, in particular to a method for producing stone thick paper. Background technique [0002] Traditional paper materials are mostly made of plant fibers such as wood as raw materials. With the increasing scarcity of deep forest resources, the raw materials for papermaking are limited to a large extent, and the production cost is also rising steadily. In addition, the traditional papermaking process using plant fibers as raw materials produces three wastes that seriously pollute the environment. [0003] With the rapid development of science and technology, papermaking technology is also changing with each passing day. Calcium carbonate, the most abundant mineral resource in the earth's crust, is used as the main raw material, and polymer materials and various inorganic substances are used as auxiliary materials. Using the principle of polymer interface chemistry and filling modification technol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C48/08B29C48/49C09D1/00C09D7/40
CPCB29C48/001C09D1/00C09D7/61C09D7/65
Inventor 郭伦铭姚强李逢泉
Owner SHANXI YU HAO DRAGON UNION ENVIRONMENTAL PAPER CO LTD