Textile tester need to test items are: density, yarn count, gram weight, yarn twist, yarn strength, fabric structure, fabric thickness, loop length, fabric coverage coefficient, fabric shrinkage or weave shrinkage, curved and slanted deformation, tensile strength, tear strength, seam slip, seam strength, bond strength, single yarn strength, yarn strength per unit of linear density, anti-hook wire, crease recovery angle test, stiffness test Water repellency, water resistance, leakage resistance, elasticity and recovery, breathability, water permeability, general garment combustibility, children's garment combustibility, bursting strength, abrasion resistance test, pilling resistance, etc.
What are the physical items that need to be tested by the textile tester?
Yarn count: The thickness of the yarn, expressed in Ne, which is defined as a multiple of 840 yards of the length rate of a 1-pound weight of cotton yarn at a nominal moisture return rate of 9.89%.
Density: The number of yarns per INCH.
Grammage: Ounce weight per square yard of fabric or gram weight per square meter of fabric.
Tensile Strength: The force used when a fabric of a certain size is stretched at a constant rate to break by a strength machine is the measured tensile strength. The tensile strength test has a grab sample method and a strip sample method, according to different test standards and customer requirements to choose the specific test method.
Tearing strength: a certain size of specimen, clamped on the tearing strength instrument, cut all the mouth in the middle to determine the direction of tearing, tearing strength instrument using a pendulum to drop the specimen from the cut to tear the force used is the measured tearing strength.
Seam slip: After folding the fabric of a certain size, stitching along the width direction, cutting a certain distance away from the seam line, and using the tensile strength meter to stretch to a certain seam opening with a constant rate of force or stretching to a certain strength when the opening distance is the seam slip that we measure. The seam slip can be measured in two ways: constant opening force and constant force opening. Seam slip is generally used only for woven fabrics.
Seam strength: Like seam slippage, the force used to break the seam with a constant rate of stretching using a tensile strength meter is the measured seam strength, which can be carried out simultaneously with seam slippage and is generally only used for bobbin testing.
Top breaking strength: Under certain conditions, a flat fabric in a suitable angle spin plus an expansive expansion force, until it breaks, this force is the top breaking strength.
Abrasion resistance: Under the known pressure, the sample mounted on the specimen clip and the standard abrasive cloth under a certain pressure with a certain track rubbing each other, until the fabric appears the number of broken yarn or holes required by the customer, record the number of abrasion at the end of the experiment, is the measured abrasion resistance value.
Pilling resistance: the fabric will be tumbled and rubbed under specific conditions for a certain period of time to see its surface pilling, pilling refers to the formation of fiber tangled pompom clusters on the surface of the fabric. Pilling refers to the fabric surface fiber rough uneven and fiber pilling, resulting in changes in the appearance of the fabric, its pilling is assessed by rating sample photo or original sample comparison.