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 use non-woven fabric as a raw material. Non-woven fabric is a new type of fiber product, characterized by its softness, breathability, and planar structure. It is a non-woven textile formed directly from polymer chips, short fibers, or long filaments using various fiber web forming methods and bonding technologies. Non-woven fabrics have the following properties:

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

Breathable: The fiber structure allows air to pass through easily.

Moisture-proof: Effectively prevents water penetration.

Lightweight: Low density, easy to carry.

Non-flammable: Not easily combustible, high safety.

Biodegradable: Decomposes naturally outdoors, completely degradable within 90 days; excellent environmental performance.

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

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

Inexpensive: Relatively low production cost, affordable price.

Production Process

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

Hydro-entangled non-woven fabric: Uses high-pressure micro-fine water jets to spray fiber webs, causing the fibers to intertwine.

Heat-bonded non-woven fabric: Uses heat to fuse fiber webs.

Air-laid non-woven fabric: Uses airflow to open and integrate fibers into a fiber web.

Wet-laid non-woven fabric: Opens fibers into single fibers in an aqueous medium, then forms a fiber slurry, and then forms and solidifies into a web.

Spun-bonded non-woven fabric: Extrudes and stretches the polymer into continuous filaments, then lays them into a web and solidifies them.

Melt-blown non-woven fabric: Melts and extrudes the polymer into fibers, then cools them into a web and solidifies them.

Needle-punched non-woven fabric: Uses needle punching to consolidate fluffy fiber webs.

Sewn non-woven fabric: Uses warp-knitted loop structures to consolidate fiber webs.

Application Classification

Due to the environmentally friendly and durable characteristics of non-woven bags, 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, trendy 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 more commonly used process, but it also has 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 strong coloring power, strong covering power, washability, and no odor. Gravure printing is suitable for specific products such as laminated 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 plastic bags and other disposable packaging materials. 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 continuous improvement of people's 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.