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The difference between RPET spunbondc and RPET stitchbond

2024-07-03  116

There are significant differences between RPET spunbondc and RPET stitchbond in multiple aspects. The following is a detailed analysis of the differences between the two:


Material and composition

1. RPET spunbondc:

• The main materials are synthetic fibers such as polyester and polypropylene.

• By extruding and stretching the polymer to form a continuous filament, the filament is laid into a mesh and then made by self bonding, thermal bonding, chemical bonding, or mechanical reinforcement methods.

2. RPET stitchbond:

• RPET stitchbond is a high-density polyethylene material, which is also made from recycled polyester (RPET). This type of stitchbond is commonly referred to as RPET stitchbond or sewn non-woven fabric.

• RPET stitchbond is made from recycled PET (such as mineral water plastic bottles or cola bottles) that is sliced, crushed, melted, and regenerated into polyester short fibers, which are then processed by needle punching or non-woven processes.


Production process

1. RPET spunbondc:

• Adopting spunbond technology, which involves extruding and stretching polymers to form continuous filaments, and then forming non-woven fabrics through bonding or reinforcement methods.

2. RPET stitchbond:

• If it is made of high-density polyethylene material, it is made through high-temperature extrusion, stretching, embossing, cutting and other processes.

• If it is RPET stitchbond, it is reinforced with polyester short fibers through needle punching or non-woven process.


Features and performance

1. RPET spunbondc

• High strength, high temperature resistance (polyester can be used for a long time in a 260 ℃ environment, polypropylene can be used for a long time in a 150 ℃ environment), low temperature resistance, aging resistance, UV resistance, high elongation, good stability and breathability, corrosion resistance, sound insulation, moth resistance, non-toxic.

2. RPET stitchbond:

• Waterproof, durable, tear resistant, high temperature resistant, antioxidant, and odor resistant.

• RPET stitchbond also has the characteristics of environmental protection, pollution-free, yellowing resistance, acid and alkali resistance, breathability, strong water absorption, full hand feel, clear and beautiful lines.

• It has health benefits and can promote blood circulation (some spunbondc may have this characteristic).


Purpose

1. RPET spunbondc:

• Mainly used in non-woven bags, non-woven packaging, flower packaging fabrics, luggage fabrics, etc., it is widely used in these fields due to its characteristics of wear resistance, firmness, and good hand feel.

2. RPET stitchbond:

• Commonly used in fields with high requirements for material waterproofing, compression resistance, scratch resistance, dust prevention, etc., such as automotive interiors, aviation products, packaging materials, etc.

• RPET stitchbond is widely used as an environmentally friendly shopping bag, home textile fabric (such as sofas, mattresses, curtains, etc.), flame-retardant protective clothing, toy filling cotton, etc. due to its environmental characteristics.


Summary

There are significant differences between RPET spunbondc and RPET stitchbond in terms of material, manufacturing process, characteristics and performance, as well as usage. RPET spunbondc are widely used in packaging, luggage and other fields due to their high strength, high temperature resistance and other properties; And RPET spunbondc, especially RPET stitchbond, is favored in multiple fields for its environmentally friendly, durable, waterproof and other characteristics. When selecting materials, appropriate materials should be selected based on specific needs and usage scenarios.


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