Manufacturing, characteristics, applications, and specifications of polypropylene woven bags
In terms of woven bags, plastic woven bags are mainly made of polypropylene as the main raw material, extruded and stretched into flat silk, and then woven, woven, and
bagged.
The color of woven bags is generally white or gray white, non-toxic and odorless. Although they are made of various chemical plastics, they have strong environmental protection and a large recycling capacity;Strong tensile strength and load-bearing capacity; It also features lightweight design.
Woven bags have a wide range of uses, mainly for packaging and assembling various items, and are widely used in industry; Since the development of geotextiles in the 1980s, the application fields of plastic woven fabrics have been expanded, widely used in small water conservancy, electricity, highways, railways, seaports, mining construction, and military engineering construction In these projects, geosynthetic materials have functions such as filtration, drainage, reinforcement, isolation, and anti-seepage. Plastic geotextile is one type of synthetic geosynthetic material
Plastic woven bags are mainly made of polypropylene resin, extruded and stretched into flat fibers, and then woven and bagged.
Composite plastic woven bags are made by compounding plastic woven cloth as the substrate through the casting method.
Used for packaging powdered or granular solid materials and flexible items. Composite plastic woven bags are divided into two in one bags and three in one bags according to their main material composition.
According to the sewing method, it can be divided into sewn bottom bag, sewn edge bottom bag, inserted pocket, and adhesive sewn bag making.
According to the effective width of the bag, it is divided into 450mm, 500mm, 550mm, 600mm, 650mm, and 700mm. Special specifications are agreed upon by the supply and demand parties.
The development trend of polypropylene woven bags.Green packaging that conforms to sustainable development
Green packaging, also known as pollution-free packaging and environmentally friendly packaging, refers to packaging that is harmless to the ecological environment and human health, can be reused and regenerated, and is in line with sustainable development.
Implement packaging reduction. Green packaging should be a moderate packaging with minimal usage, while meeting the requirements of protection, convenience, and sales. European and American countries have listed reducing packaging as the preferred measure for developing harmless packaging.
Throughout the entire lifecycle of packaged products, there should be no pollution or pollution to the environment. The entire life process of packaging products, from raw material collection, material processing, product manufacturing, product use, waste recycling, to final disposal, should not cause harm to human health and the environment.
Reduce, Reuse, Recycle, and Degradable are the 3R and 1D principles recognized worldwide for the development of green packaging in the 21st century.
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Selection principle of package
1. Select recycled materials
Choosing recycled materials can not only improve the utilization rate of packaging materials and reduce production costs, but also save a lot of energy and reduce the consumption of other resources, while reducing emissions to the environment.
2. Select recyclable materials
Choosing packaging materials with good recycling and reuse performance is one of the effective ways to achieve green packaging.
3. Choose biodegradable materials
Degradability refers to the ability of non recyclable packaging waste to decompose, decay, and return to nature or ecology within a specific period of time.
4. Try to use the same packaging material as much as possible
Try to use the same packaging material and avoid using multi-layer packaging bodies composed of different materials to reduce the separation of packaging materials and improve the recycling and reuse performance of packaging materials.
5. Minimize the use of packaging materials as much as possible while meeting the requirements of packaging protection, aesthetics, convenience, and sales.
Reducing the use of materials not only means reducing raw material costs and manufacturing costs, but may also mean reducing transportation and sales costs, as well as recycling and disposal costs after packaging waste.
6. Avoid excessive packaging
Excessive packaging is of no use to consumers. When reducing packaging, it is also necessary to consider consumers' usage habits and the appearance of the product. Some packaging also needs to provide sufficient space to indicate various information about the product.
7. Reusable and refilled packaging
Reusing and refilling packaging can improve the service life of product packaging, thereby reducing its environmental impact caused by waste. At the same time, the cost of collecting and cleaning packaging materials, as well as their impact on the environment, should be considered; To establish a corresponding network and system for refilling.
8. Optimization design of packaging structure
Green packaging is achieved through the structural design of packaging materials. By changing the packaging shape to make product transportation more convenient, in order to facilitate transportation.
9. Improving product structure and packaging
Aims to enhance the structural strength of the product by improving its structure and form.
10. Reduce consumption
REFILL: refillable; RECYCLE: recyclable; RECORDY: Recyclable
