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How to correctly select textile testing instruments?

Author:QINSUN Released in:2022-10 Click:265

Since entering the 21st century, our textile industry has made new breakthroughs and developments in the areas of industrial upgrading, chemical process, independent innovation, brand effect and infrastructure construction, and has achieved good economic and social benefits, with an increasingly high status and image in the market. But amidst all the cheers, especially after joining the WTO and abolishing trade quotas, textile enterprises did not usher in a spurt of development as expected, but encountered one non-tariff trade technical barrier after another, causing major losses to some enterprises! Many enterprises had to spend expensive testing fees at various notary inspection houses to receive their passes in order to reduce their financial losses. This not only increases the cost, but also affects the delivery period due to the long testing period.

So how do you choose the test equipment to establish a standardised laboratory that is in line with the standards?

First of all, according to the enterprise's own product grade and sales direction to choose the test instrument, if an enterprise production are low-end products, sales direction and only limited to the domestic words, choose domestic test instruments are sufficient to meet the experimental requirements, because domestic test instruments after several years of technological innovation, there has been considerable progress, there is no need to seek foreign; if the enterprise production are products, sales direction and mainly in Foreign words, choose and notary inspection department in line with the imported equipment. For each notary inspection department to provide equipment, in the domestic and international market has a wide range of influence of the QINSUN company's products, is the choice.

How to correctly select textile testing instruments?

Secondly, the choice of testing instruments should be based on the standards adopted and the sales region. Many of the widely recognised standards on are tailored by standardisation organisations controlled by developed countries according to the level of technology in developed countries, therefore, to establish a standardised laboratory, it is important to take into account the standards adopted and the sales region of the product when choosing instruments, as different regions will recognise different standards. The ISO standard system is widely accepted by European customers, the AATCC and ASTM standard systems are widely recognised by American customers, while Japanese customers prefer the JIS standard system. For example, for the dry/wet rubbing colour fastness test, the AATCC and ISO standards require ten rounds of flat rubbing, while the JIS standard requires one hundred rounds of curved rubbing; for the dimensional stability test, European customers usually use front-loading drum washing machines, while American customers usually require top-loading agitator washing machines, while Japanese customers require top-loading ordinary washing machines; For example, American customers require the RANDOM pilling test method, while European and Japanese customers require the ICI pilling test or the MARTINDALE pilling test method; then take the sunlight fastness test as an example, European and American standards require the use of xenon arc lamp exposure, while Japanese standards require the use of carbon arc lamp exposure, etc.; sometimes there is a need to choose the test instrument according to the buyer's standards. Sometimes, you have to choose the testing instrument according to the buyer's standard, like M&S, GAP, J.C.PENNY, NIKE, LEI'S, FEDERATED, SEARS, BUTTON, ADIDAS, BHS, DISNEY, TOMMY HILFIGER, HUGO BOSS and other big buyers have their own testing standard, most of the buyers TESTER is one of the textile testing instrument suppliers recognized by the majority of buyers.

Thirdly, you have to choose the test instrument according to your product category. Because different products need to use different testing instruments to test, in order to meet the test rationality and scientific, for example: strength test, knitted products because of the loose structure, in doing strength test should be used to expand the strength tester, and woven products because of the close structure, in doing strength test should be used when the material testing machine and ELMENDORF strength tester; the same pilling test, knitted products in doing pilling test. Knitted products in doing pilling test, usually use ICI pilling tester, carpets in doing pilling test, we should use carpet pilling tester, and towel fabric in doing pilling test, we need to use the washing machine to carry out; such as flame resistance test, general textiles in doing flame resistance test, general fabrics usually use forty-five degrees burning tester, children's pajamas and decorative fabrics to do When doing flame retardancy testing, it is necessary to use a vertical flammability tester, while when doing flame retardancy testing for aircraft and car interior fabrics, a horizontal flammability tester is usually used; and when doing abrasion resistance testing, general fabrics usually use the MARTINDALE Martindale abrasion resistance tester to carry out, while footwear fabrics usually use the UWT abrasion resistance tester to carry out, and car interior and furniture textiles usually use the OSCILLATORY abrasion resistance tester, while coated materials and leather materials usually use TABER abrasion resistance tester; take the simple rubbing colour fastness test, if testing the dry/wet rubbing colour fastness of printed fabrics, usually use the rotary rubbing colour fastness tester, etc.; it can be seen that different product categories will use different testing instruments, so in instrument selection must take into account their own product structure.

Fourth, according to their actual production capacity and economic strength to choose testing instruments, enterprises in the choice of testing instruments, must take into account the enterprise's own production capacity, and a slight margin. Because the current instrument production suppliers, such as TESTER company products have formed a series of production, for example: MARTINDALE Martindale abrasion resistance tester has 4 head, 6 head, 8 head; such as ICI pilling tester PT-2 messy flip pilling tester has 2 head and 4 head; washing colour fastness tester has 4 cups, 4 + 2 cups, 4 + 4 cups, 8 cups, 8 + 4 cups, 8+8 cups, 12 cups, 12+6 cups, 12+12 cups, 16 cups, 16+8 cups, 16+16 cups, 24 cups, 24+12 cups and 24+24 cups (when the two numbers are added together, the first one is a 500ml test cup and the second one is a 1200ml test). 25KN, and 50KN series products, configured with different sensors and collets can be tested on various types of products, etc., customers can choose according to their needs, seems very humane.

Fifth, according to the test items needed to choose the test instrument, from the textile test items, usually divided into: regulatory testing including: fibre label, care label, down test, fire test; quality performance testing including: colour fastness, physical properties, shrinkage resistance, group fibre analysis, strength, fabric/clothing performance and flammability. Tex100 Standard100 and Eco-Textile, as well as the prestigious Danish Novotex "Green Cotton", etc. The Oko-Tex100 label has strict and detailed requirements for textile environmental protection items and test methods, with tests for formaldehyde, azo dyes, pH and alkalinity. Azo dyes, PH, PCP, halide carriers, pesticides, dye fastness, release of volatile compounds, special odours (e.g. musty smell, heavy metals such as arsenic, cadmium, chromium, copper, cobalt, lead, mercury, nickel, etc.). As an enterprise, the laboratory established cannot and should not be all-inclusive, therefore, to establish a standardized laboratory, but should be based on their own actual situation to determine the test items, and then according to the test items to determine the test instruments, play not to seek large and comprehensive.

Sixth, it is necessary to suspend the test instrument according to the scale of the supplier and the after-sales service ability. If the supplier is too small, we have to consider his viability, if the supplier is an agent, you have to consider his after-sales service capacity, but also consider the standard technical training training capacity of the supplier or agent, the product dealer to higher technical strength, to be able to provide more technical training, so as to improve the use of the instruments we purchase, and the correct way to use and maintain. Therefore, it is a better choice to choose the supplier first and then the test instrument.

Seventhly, test instruments should be selected according to the user group. If the supplier has a large number of users, it means that the quality of the test instrument provided by the supplier is relatively stable and has good operability and repeatability. For example, when choosing a sunlight fastness tester, ninety-nine percent of customers choose a sunlight fastness tester with a rotating sample holder.

Therefore, the establishment of a laboratory suitable for the customer's requirements and in line with the actual situation of the company, and the correct choice of testing instruments to meet the requirements, should be the consistent goal and requirements of a responsible laboratory designer.