Recycled Synthetic Paper Biodegradable Waterproof Tear Resistant
Stone Paper for Wrapper Stationery Disposable Bags
Stone Paper is type of paper that is made from crushed stone. It’s
idea is about sustainable development with respect to our planet.
By using mineral power (Calcium Carbonate) Stone Paper bags and
packages are tree-free, and no water or bleach is used during
production, which is the case during the production of traditional
wood pulp paper.
Characteristics of Stone Paper
1. MADE OF STONE DUST
Stone paper is a type of paper that is made out of calcium
carbonate 80% (limestone) and bio-polyethylene resin 20% (HDPE). In
this case, the HDPE is used as a binder. Thereby, limestone from
existing limestone quarries is being used as the raw material and
processed into a fine powder.
2. WITHOUT CHEMICAL BLEACH
The color of Stone paper is originally white, therefore it does not
require any further bleaching process. Because of its high density,
stone paper products also retain their shape over time.
3. WATERPROOF AND WASHABLE
Due to its composition, stone paper is waterproof, resistant to
grease and washable. The feel is similar to that of tissue paper.
4. BACK TO NATURE
The products are disposed and recycled in the normal way. Here, the
stone paper is turned back into calcium carbonate and becomes
limestone again.
Stone Paper-Calcium Carbonate Paper Performance
1. Adsorption: Stone paper and ink have strong affinity and
adsorption, easy to color when printing, not easy to decolorize;
2. Waterproof: The words written on stone paper, color ink soaked
in water will not fade;
3. Flexibility: have good tensile and tear resistance, and have a
good flexibility;
4. Appearance: smooth surface, good brightness, high resolution,
three-tier structure;
5. Environmental protection: Automatic weathering and no pollution
in the wild environment;
6. Writing: writing fluent, easy to color, writing feel good;
7. Printing: can be used for lithography, gravure, convex screen
printing, etc.,
because of the technology of paper production of stable quality,
good finish, not easy to tear, easy to print, not afraid of water,
not worms and other advantages in the international market The
selling price is very high.
Production Process
In the stone paper production process, the factory simplifies a
crushing process, because the broken stone generates a lot of dust,
causing harm to the environment and the human body. Therefore, the
calcium carbonate production process is generally carried out by a
quarry. After the stones are crushed, the quarry mill uses a
calcining process to produce hydrated lime or lime. The main
component of this lime is calcium carbonate, and then the lime is
powdered. Bagging, the current retail price in the market is about
300 yuan a ton; if the stone paper mill is built in the
stone-producing area, the crushing process can be separated from
the production process. If the area is not a stone-producing area,
you can purchase lime powder directly for stone making, and the
cost will only increase by a few hundred yuan. Process flow: The
process of producing synthetic paper using the combination of
calendering and casting. The basic material of stone paper is
polyethylene-PE and polypropylene-PP. Instead of a single casting
machine instead of a calender, a combination of polyethylene-PE and
polypropylene-PP is used in combination with calendering and
casting, which is more suitable for the processing of polyethylene.
The product performance is improved and the product is improved.
The production scope is more extensive. Production Process:
Auxiliary - Modification - Granulation - Production - Thickness
Measurement Additives - Products - Cutting - Coiling - Surface
Treatment Raw Materials [Calcium Carbonate Powder, Resin
(Plastic-Polyethylene PP, Polypropylene PE), Additives
(Adhesives)]--Mixing-- Mixed Paper--Extrusion (Casting,
Rolling)--Base Paper--Coating Cloth Treatment (Paper Spray Coating
Solution)--Multilayer Film Treatment--Glossy Surface
Treatment--Synthetic Paper (Coating Liquid)--Graphic Fabric
Treatment
Production Process
1.Eenvironmental protection coating --- environmental protection
paper.
2. Synthetic paper.
3. Base paper smooth surface - green thick surface material.
4. Base paper multilayer film processing - synthetic thick sheet.
Since stone (anhydrous) papermaking uses a large amount of cheap
inorganic minerals as the main ingredient of the formula, it can
greatly reduce the production cost of paper, but it can increase
the softness and tension of the product. In addition, the use of
improved special equipment to complete the production of this kind
of paper can simplify the production process of the paper, make the
quality more stable, and make the operation more convenient.
stone-paper is used to replace cultural paper, craft paper,
packaging paper, household paper, etc. It has good mechanical
properties, waterproof, moisture-proof, moth-proof, oil-resistant,
non-toxic and environmentally friendly.
Based on different thickness and density, there are 4 degrees of
stone paper:
