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Composition testing of non-woven materials

Release time:

2022-06-21 14:38

What is non-woven fabric? Non-woven fabrics, also known as non-woven fabrics, are composed of directional or random fibers. They are a new generation of environmentally friendly materials. They are moisture-proof, breathable, flexible, light in weight, non-combustible, easy to decompose, non-toxic and non-irritating, rich in color and affordable. Inexpensive and recyclable. For example, polypropylene (pp material) pellets are used as raw materials, and are produced by a continuous one-step method of high temperature melting, spinning, laying, and hot pressing and coiling. It is called cloth because of its appearance and certain properties. So what are the components of non-woven fabrics?

The main components of non-woven fabrics:

Non-woven fabrics are made on wet or dry paper machines including chemical fibers and plant fibers under the condition of using water or air as a suspending medium. Although they are cloth and not woven, they are called non-woven fabrics. Non-woven fabric is a new generation of environmentally friendly materials, which has the advantages of good strength, breathable and waterproof, environmental protection, flexibility, non-toxic and tasteless, and low price. It is a new generation of environmentally friendly materials with the characteristics of water repellency, breathability, flexibility, non-combustion support, non-toxic and non-irritating, and rich colors.

Non-woven material composition testing items:

Color fastness testing: color fastness to washing, color fastness to rubbing (dry, wet), color fastness to water, color fastness to saliva, color fastness to light, color fastness to dry cleaning, color fastness to perspiration, color fastness Color fastness to dry heat, color fastness to heat pressing, color fastness to chlorine water, color fastness to scrubbing, color fastness to chlorine bleaching

Physical property testing: tensile breaking strength, tear strength, seam slip, seam strength, burst strength, anti-pilling resistance, abrasion resistance, fabric density, weight, thickness, width, weft bias, yarn Thread count, moisture regain, single yarn strength, appearance after washing, dimensional stability

Functional testing: air permeability, moisture permeability, combustion performance, waterproof performance (hydrostatic pressure, splashing water, rain), electrostatic testing

Chemical performance testing: PH value determination, composition analysis, formaldehyde content, azo test, heavy metals.

Non-woven material composition testing standards:

ASTM D7799-2012 Standard Specification for Non-Uniform PVC or Non-PVC Backed Tufted and Nonwoven Broad Carpet Adhesives

BS EN 61249-2-4-2002 Materials for printed boards and other interconnecting structures Part 2-4: Clad and unclad reinforced substrates Polyester non-woven/woven glass with specified flammability Fiber laminates (vertical fire test), copper clad IEC 61249-2-4:20

BS EN 61249-2-18-2002 Materials for printed boards and other interconnecting structures Part 2-18: Clad and unclad reinforced substrates Non-woven polyester fiberglass reinforcement with specified flammability Tablet (Vertical Burn Test), Copper Clad

CAB 1027-2014 Automotive Covers

DB37/T 3004-2017 Technical Regulations for Nursing Twigs and Seedlings of Honeysuckle Non-woven Containers

DIN 53362-2003 Inspection of plastic films and flat fabrics (excluding nonwovens) with or without plastic coating - Determination of flexural rigidity - Cantilever test method

GB/T 18840-2002 Tire base for asphalt waterproofing membrane

HG/T 5231-2017 Organic tubular membrane module

JB/T 4033.4-2013 General components of cable equipment - Wrapping device - Part 4: Half-tangent wrapping device

JB/T 11873-2014 Belt vacuum filter non-woven filter belt

fabrics

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