Non-woven bags, also known as non-woven bags, are a type of eco-friendly packaging bag. Here is a detailed introduction to non-woven bags:

Material Properties

Non-woven bags are made of non-woven fabric, a non-woven material. It is directly formed from polymer chips, short fibers, or long filaments through various fiber web forming methods and consolidation techniques. It is a new type of fiber product with characteristics of softness, breathability, and a planar structure. Non-woven fabrics have the following properties:

Durable: Non-woven fibers are tightly bound together and are not easily torn.

Good breathability: The fiber structure allows gases to pass through easily.

Moisture-proof: Effectively prevents water penetration.

Lightweight: Low density, easy to carry.

Non-flammable: Not easily combustible, ensuring safety.

Biodegradable: Can be naturally decomposed outdoors within 90 days, environmentally friendly.

Non-toxic and non-irritating: Harmless to the skin, safe to use.

Rich in color: Can be dyed in various colors as needed.

Low price: Relatively low production cost, affordable price.

Production Process

The production process of non-woven bags mainly includes the following methods:

Hydroentanglement: Using high-pressure micro-fine water jets to spray fiber webs, causing the fibers to intertwine.

Thermal bonding: Heating the fiber web to fuse it together.

Air-through method: Using airflow to loosen the fibers and consolidate them into a web.

Wet method: Dispersing fibers into single fibers in an aqueous medium, then making a fiber slurry, and then forming a web and consolidating it.

Spunbond method: Extruding and stretching the polymer into continuous filaments, then laying them into a web and consolidating them.

Meltblown method: Melting and extruding the polymer into fibers, then cooling them into a web and consolidating them.

Needlepunching: Piercing and consolidating a fluffy fiber web with needles.

Sewing method: Using warp-knitted loop structure to consolidate the fiber web.

Application Classification

Because non-woven bags are environmentally friendly and durable, they are widely used in various fields, mainly including:

Advertising: Used for corporate publicity and product promotion.

Education: Disseminating knowledge and cultural information.

Gifts: Given as gifts, with commemorative significance.

Commemoration: Used for celebrations and anniversaries.

Simple: Meets basic packaging needs, affordable.

Other types: For example, fashionable and retro styles, designed according to fashion trends or retro styles.

Printing Process

The printing processes for non-woven bags mainly include screen printing, water transfer printing, and gravure printing. Screen printing is a commonly used process, but may have problems such as odor, uneven color, and easy peeling. Water transfer printing uses water-based elastic glue as the printing medium, with advantages such as good coloring power, strong covering power, good washability, and no odor. Gravure printing is suitable for specific products such as composite non-woven bags.

Environmental Advantages

Compared with traditional plastic bags, non-woven bags have significant environmental advantages. First, non-woven bags can be reused and washed, reducing the use of disposable packaging materials such as plastic bags. Second, non-woven materials are easy to decompose and will not cause long-term environmental pollution. Therefore, non-woven bags are widely used in environmental protection publicity and green packaging.

In summary, non-woven bags are environmentally friendly packaging bags with many advantages and wide applications. In future development, with the improvement of environmental awareness and technological progress, the application of non-woven bags will become more widespread, becoming an important force in promoting green packaging and sustainable development.