Seven-layer melt-coextrusion stone paper and preparation method therefor

A stone paper and co-extrusion technology, applied in chemical instruments and methods, laminated, layered products, etc., can solve the problems of unstable stone paper product quality, difficulty in large-scale promotion and application, and poor printing adaptability, etc., to achieve effective It is conducive to market promotion and application, solves the problem of poor hygroscopicity and printing adaptability, and improves the effect of ink absorption

Active Publication Date: 2017-03-22
云南昆钢石头纸环保材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, most of the stone paper in the market today is HDPE stone paper, which is mostly used as printing paper and wallpaper, and most of them have a single-layer structure. The existing multi-layer stone paper also generally has poor printing adaptability, poor stiffness, and poor covering properties. , specific gravity, high static electricity and other issues
The above factors are the bottleneck problems that cause the quality of stone paper products to be unstable and difficult to promote and apply on a large scale

Method used

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  • Seven-layer melt-coextrusion stone paper and preparation method therefor
  • Seven-layer melt-coextrusion stone paper and preparation method therefor
  • Seven-layer melt-coextrusion stone paper and preparation method therefor

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Effect test

Embodiment 1

[0049] Seven-layer melted co-extruded stone paper, including a reinforcing layer, and a foam layer, a cover layer and a printing layer arranged on the two outer surfaces of the reinforced layer in sequence from the inside to the outside; the total thickness of the seven-layer melted co-extruded stone paper The total thickness of the printing layer accounts for 10% of the total thickness of the seven-layer melt co-extruded stone paper, the total thickness of the cover layer accounts for 10% of the total thickness of the seven-layer melt co-extruded stone paper, and the total thickness of the foam layer It accounts for 70% of the total thickness of the seven-layer melt co-extruded stone paper, and the reinforcing layer accounts for 10% of the total thickness of the seven-layer melt co-extruded stone paper.

[0050] The preparation method of seven-layer melting co-extruded stone paper, through the following steps:

[0051] (1) Prepare the printing layer:

[0052] Raw materials a...

Embodiment 2

[0069] Seven-layer melted co-extruded stone paper, including a reinforcing layer, and a foam layer, a cover layer and a printing layer arranged on the two outer surfaces of the reinforced layer in sequence from the inside to the outside; the total thickness of the seven-layer melted co-extruded stone paper The total thickness of the printing layer accounts for 15% of the total thickness of the seven-layer melt co-extruded stone paper, the total thickness of the cover layer accounts for 15% of the total thickness of the seven-layer melt co-extruded stone paper, and the total thickness of the foam layer It accounts for 60% of the total thickness of the seven-layer melt co-extruded stone paper, and the reinforcing layer accounts for 10% of the total thickness of the seven-layer melt co-extruded stone paper.

[0070] The preparation method of seven-layer melting co-extruded stone paper, through the following steps:

[0071] (1) Prepare the printing layer:

[0072] Raw materials a...

Embodiment 3

[0089] Seven-layer melted co-extruded stone paper, including a reinforcing layer, and a foam layer, a cover layer and a printing layer arranged on the two outer surfaces of the reinforced layer in sequence from the inside to the outside; the total thickness of the seven-layer melted co-extruded stone paper The total thickness of the printing layer accounts for 20% of the total thickness of the seven-layer melt co-extruded stone paper, the total thickness of the covering layer accounts for 20% of the total thickness of the seven-layer melt co-extruded stone paper, and the total thickness of the foam layer accounts for The seven-layer melt co-extruded stone paper accounts for 50% of the total thickness, and the reinforcing layer accounts for 10% of the seven-layer melt co-extruded stone paper's total thickness.

[0090] The preparation method of seven-layer melting co-extruded stone paper, through the following steps:

[0091] (1) Prepare the printing layer:

[0092] Raw materi...

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Abstract

The invention discloses seven-layer melt-coextrusion stone paper and a preparation method therefor. The seven-layer melt-coextrusion stone paper comprises a reinforcing layer, foamed layers, cover layers and printed layers, wherein the foamed layers, the cover layers and the printed layers are sequentially arranged on two outside surfaces of the reinforcing layer from inside to outside. The method comprises the steps of preparing the printed layers, the cover layers, the foamed layers and the reinforcing layer, carrying out extrusion foaming on melt jelly of all the extruded layers through the same die head, and carrying out conventional three-roller calendering, cooling, drawing and winding, thereby obtaining the seven-layer melt-coextrusion stone paper. The stone paper prepared by adopting the method is good in stiffness, good in printing adaptability, low in specific weight, high in nontransparency, good in smoothness and uniform in thickness, and various performance indexes meet the art post paperboard performance index requirements of GB / T22806-2008, so that the stone paper can be used for printing art prints, cards, business cards, packaging cartons and the like and has a relatively good popularization and application value.

Description

technical field [0001] The invention belongs to the technical field of stone papermaking, and in particular relates to a seven-layer melting co-extruded stone paper and a preparation method thereof. Background technique [0002] At present, the production methods of stone papermaking at home and abroad mainly include: calendering method, casting method, film blowing method, unidirectional (longitudinal) stretching method, and bidirectional stretching method. Stone paper is currently using the latest environmental protection technology. It uses calcium carbonate powder as the main raw material instead of pulp, and mixes a small amount of polymer resin and additives to create a new paper with similar functions to traditional wood pulp paper. It is a very developed Promising "low-carbon, green, recyclable" materials. [0003] However, most of the stone paper in the market today is HDPE stone paper, which is mostly used as printing paper and wallpaper, and most of them have a s...

Claims

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Application Information

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IPC IPC(8): B32B9/00B32B9/04B32B27/32B32B27/06B32B17/06B32B17/02B32B37/02C04B2/02
CPCB32B9/00B32B9/04B32B17/02B32B17/06B32B27/06B32B27/32B32B37/02C04B2/02
Inventor 刘瑞铭严杨刘畅周建萍
Owner 云南昆钢石头纸环保材料有限公司
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