Plastic Film Extrusion Machinery Manufacturer-Nanjing Sumino Precision Machinery Co.,Ltd

What is stone paper?

Sumino machinery stone paper line


Sumino machinery stone paper line is a popular project now ,and many clients think it is very mysterious technology, today,i will Unveil her mystery.


What is stone paper?

Stone paper is a new type of material between paper and plastic. It can not only replace part of traditional functional paper and professional paper, but also replace most of the traditional plastic packaging. And it has the characteristics of low cost and controllable degradation, which can save a lot of cost for users without causing pollution. From the perspective of replacing traditional parts of paper, it can save a lot of forest resources for the society and reduce the secondary pollution generated in the papermaking process; from the perspective of replacing traditional parts of plastic packaging, it can save a lot of strategic resources for the country. (Each ton used can save 2.3 tons of oil), the product can be degraded after use, and will not cause secondary white pollution. The environmental protection new material stone-paper industry has a wide range of materials, and the space for product upgrades, technology upgrades, and application areas is very broad. It is a very vigorous and well-developed industry.


Brief Introduction

Stone paper is based on limestone mineral resources with large reserves and wide distribution as the main raw material (calcium carbonate content is 70-80%), with high molecular polymer as auxiliary material (content is 20-30%), using the principle of polymer interface chemistry and The characteristics of polymer modification are processed by a special process and then made by polymer extrusion and blow molding processes. The new inorganic powder environmental protection material stone paper product has the same writing performance and printing effect as plant fiber paper. At the same time, it has the core performance of plastic packaging

Characteristic


The production process is simple; the investment is large, the output is high, and the energy consumption is low; it does not use plant fiber and does not cut trees, which can save a lot of wood and protect the natural ecology; it does not need to add strong acids, alkalis, bleaching agents and other chemical materials, and does not discharge wastewater , Waste residue and toxic and harmful gases are green environmental protection products. The product has good mechanical properties, water resistance, moisture resistance, moth resistance, folding resistance, tear resistance, oil resistance, non-toxic, odorless, non-polluting, stable geometric dimensions, high printing definition, good effects, and can be naturally degraded into powder after being discarded. Nature and other characteristics.\


Categories


The first category: a series of biodegradable environmentally friendly packaging materials. This product is mainly used to replace traditional plastic packaging products; there are mainly two series of industrial packaging materials and living packaging materials, among which industrial packaging materials include: dust covers and protective covers for electronics, home appliances and industrial instruments and equipment. Packaging materials include: various middle packaging bags, shopping bags, garbage bags, and rolling bags used in daily life. Such products have very strong social value and market advantages. The social value lies in:
1. The product has photodegradation, oxidative degradation and biodegradation properties. Long-term use can fundamentally solve the "white pollution" problem that increasingly oppresses Mother Earth;
2. Due to the massive use of calcium carbonate, every ton of environmentally friendly packaging materials used can save the country 2.3 tons of petroleum resources. The market advantage is that consumers not only assume social environmental protection responsibilities, but also save 15% to 30% of the cost of use.
The second category: environmental protection stone wall paper series products. Due to the advantages of raw materials, production technology, process and other aspects, the stone paper wallpaper product is the only wall paper in the world that is close to zero benzene and zero formaldehyde. The product does not contain harmful substances such as heavy metals, has no peculiar smell, is moisture-proof, and flame-retardant. With anti-bacterial and other functional characteristics, the environmental indicators of its products have not only passed the testing and certification of relevant national testing agencies, but also reached the testing standards of the European Union, and have made major breakthroughs in health and environmental protection.
The third category: environmentally friendly stone paper products. It is mainly used to replace some traditional cultural paper, packaging paper and special paper products; this type of product changes the traditional papermaking technology, does not use wood pulp, does not need to cut trees, does not emit strong acids, alkalis and other chemical substances. No waste water is discharged [1].


Significance

Recyclable
After use, stone paper products can be recycled through plastic products. After collection, they can be crushed, extruded and granulated into good additives for PE plastic processing, and can be used to produce colored plastic bags, flower pots, plastic buckets, etc. After stone paper is used, it is treated as garbage and sent to the incinerator for burning. Because it contains a large amount of stone powder and a small amount of non-toxic resin, only non-toxic resin can be burned. When the resin burns, the stone powder will pulverize to promote the contact between the resin and the air, and accelerate the resin to be completely burned. Therefore, it will not produce black smoke due to the lack of oxygen and smoldering during the combustion. After the combustion of the non-toxic resin, there is no toxic waste gas and carbon dioxide. The least discharge can slow down the warming of the earth. After the stone paper is used, it is abandoned outdoors, and it will automatically embrittle into a broken eggshell under the sunlight for about six months, and return to nature (the paper will not be damaged by the ultraviolet rays in the sun when the paper is placed indoors, and the resin will not embrittle. of).
Protection of water resources and energy saving
Stone paper has a strong environmental awareness. The manufacture of stone paper products does not require washing with water, nor does it require strong acids, alkalis and bleaching agents. Therefore, there is no problem of wastewater discharge, no pollution of rivers, seas and other water resources, and it is used in the manufacturing process. The energy consumption is lower than that of traditional wood pulp paper making, which helps to alleviate the problems of global warming caused by carbon dioxide (CO2).
Stone paper not only helps to improve the past environmental problems, but also conforms to the future trend of environmental protection. It is believed that it will be an inevitable and widely used product of the development of human science. It is not yet possible to fully replace traditional paper making. The goal should be to replace part of the market. As for replacing 30% or 40%, whether to replace coated paper, newsprint or double offset paper, the key lies in the maturity, development and perfection of the technology.


Main Componentsof Stone paper production line


Step One: Granulating LineStone paper production line stone wall paper/notebook making machine
In the high temperature and high pressure process environment, calcium carbonate powder, macromolecule materials and a variety of process auxiliaries are fully mixed and milled, and then extruded by screwing.


Step Two: Casting LineStone paper production line stone wall paper/notebook making machine
The granules manufactured by the granulating machine are transported to the machine. After heating and strong pushing of the screw, the temperature of the raw material is raised and together with the molten PE material to be extruded into a "T" type die to form a three-layer composite sheet material, stretched by a casting roller and adjust the thickness of the product by controlling the speed, and then cooled and shaped by the cooling wheel set, and then flatten, visually inspect, thickness test,and static elimination, then cut off the ear materials and wind up the finished paper.



Step Three: Coating LineStone paper production line stone wall paper/notebook making

The stone paper base paper produced by the casting method is coated, firstly, the coating liquid is prepared according to the formula and then coated and produced on a coater, and the device is coated by a rotary reverse method. By forming reverse velocity difference between paper surface and coating roll erand coating feeding roller, to achieve uniform coating and stable adhesion to the paper surface. After drying in an oven, repeat the same operation to coat the back side of the paper, and finally stabilize the constant tension. The finished stone paper roll can be obtained by winding up.



Company Profile

Nanjing Sumino Precision Machinery Co., Ltd. is a high-tech enterprise integrating scientific research, production and sales. It has always adhered to the business philosophy of integrity, equality, and customer benefits. In order to better improve the quality of equipment, it has entered a more professional and standardized Production track. We have established independent research and development technologies for seven categories of equipment including plastic sheet material, casting, bi-stretching, non-woven non-woven meltblown cloth, laminating film composite, recycled granulation environmental protection recycling system and coating machine manufacturing system. The center and production department provide a full set of professional technical solutions to meet the special needs of each customer. Among them, the biaxially oriented film manufacturing system includes: BOPP biaxially oriented film manufacturing system, PVC biaxially oriented shrink film production line, PET biaxially oriented film production line, BOPA biaxially oriented film production line, BOPA biaxially oriented film production line, etc.
Company Address: No. 11, Kaifeng Road, Moling Street, Jiangning District, Nanjing City, Jiangsu Province


Sue

International Business Development Department Manager

Nanjing Sumino Precision Machinery Co.,Ltd

Add: Kaituo Road No.11, Jiangning Distract, Nanjing, China.
Tel: +86 025-51839686 
Fax: +86 025-51839687
Mob/Wechat/Whatsapp: +86 177 1241 3069

Email: suqian@susumino.com

Web: sumino.en.alibaba.com www.susumino.com/www.njsumino.com