Main items of non-woven quality inspection
Non-woven fabric, also known as non-woven fabric, is composed of directional or random fibers. It is a new generation of environmentally friendly materials. It is moisture-proof, breathable, flexible, lightweight, non-combustible, easy to decompose, non-toxic and non-irritating. Abundance, low price, recyclable and so on. For example, polypropylene (pp material) pellets are mostly used as raw materials, which are produced by 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.
Non-woven fabrics are made of chemical fibers and plant fibers on a wet or dry paper machine under the condition of using water or air as a suspending medium. It is a non-woven fabric. 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.
The non-woven fabric has no warp and weft threads, so it is very convenient to cut and sew, and it is light and easy to shape. It is very popular among craft lovers.
Color fastness test: 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 to dry heat, color fastness to heat compression, color fastness to chlorine water, color fastness to scrubbing, color fastness to chlorine bleaching Physical properties testing: tensile breaking strength, tear strength, Seam slippage, seam strength, burst strength, pilling resistance, abrasion resistance, fabric density, weight, thickness, width, weft bias, yarn count, moisture regain, single yarn strength, after washing Appearance, dimensional stability
Functional testing: air permeability, moisture permeability, combustion performance, waterproof performance (hydrostatic pressure, splashing water, rain), electrostatic testing
chemical performance testing : Determination of pH value, composition analysis, formaldehyde content, azo test, heavy metals.
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