Color fastness is a type of color fastness, also known as color fastness or color fastness to bleed, which refers to the migration of dye or residual floating color on the fabric, mainly reflecting the fabric after washing or being exposed to rain. The degree of contamination that causes dyes to elute at dyeing sites and shift to white or light-colored base fabrics comes from Japan. It is also called the "big pill method" in the Japanese test method. Color weeping fastness has now become one of the common testing items for Japanese singles. Generally speaking, it is required to reach level 4 or above 4-5, which is mainly manifested in medium and dark colors. It is often associated with color fastness. Good color fastness and good weeping fastness will also be good. The improved color fastness of cotton fabrics can be improved and strengthened from the following major aspects: 1.choose the right dye Because the dyes are often accompanied by a small amount of incomplete dyes in the synthesis, the presence of these dyes will not only affect the color fastness but also affect the other color fastness. Therefore, the color fastness test should be done before use. At the same time, attention should be paid to the use of reactive dyes in which the water-soluble groups in the dye structure are not too high and the directness is intermediate. 2.Pay attention to the impact of water quality The calcium and magnesium ions in the water will form insoluble matter with the dye and adsorb on the surface of the fiber, becoming floating color and hindering the diffusion and penetration of the dye, reducing the color fastness and even affecting the shade and vividness. Therefore, soft water or chelating dispersant must be added. Wait. 3.to strengthen the washing and soaping process The residual alkali salts on the fibers, hydrolysis, and the floating color of the unbound dyes are the key factors affecting the fastness, and high-performance anti-soap soaping agents with excellent properties should be selected, and soaps should be soaped under neutral or weak acid as much as possible. Higher temperatures are used to wash off unbound dyestuffs inside the fabric, but it is also important to note that too high a temperature can cause breakage of bonded dyes, especially under alkaline conditions. 4.using solid color processing The use of excellent cations and reactive fixatives can block the water-soluble groups of the dyes, making the dyes insoluble in the lake and depositing in the fibers, reducing the water solubility of the dyes, while a small amount of hydrolyzed dyes can also participate in the fixation. Cross-linking further increases the binding force with the fiber, thereby effectively improving the wet processing of the dye, the fastness of the color cry, etc., and if necessary, individual deep color shades can also be subjected to a re-fixation process. Of course, in addition to paying attention to the above points, whether the quality of the grey cloth itself...

The colour fastness of textile is meaning the fading degree of dyed or printed fabric that undergo the effect of external factors (including extrusion, friction, washing, rain shower, exposure, light, seawater impregnation, saliva impregnation, water stains, sweat stains, etc.)during the using or process,it is a important index of textile.The product has good colour fastness and it not easy to lose color during processing or using;otherwise it will appear some states like drop or stain and cause a lot of trouble. The most conventional problem of colour fastness of textile as below: 1、Sun fastness is not up to standard: The clothing during the dressing ,the color of the part of clothing that more exposed to sunlight begins shallow or discolored (usually is the back and shoulders), where there is no or less exposure, the color is constant or light. People will not use the product that the color is different in depth. 2、Colour fastness to washing, soaping and dry cleaning is not up to standard:Clothing fading after washing.The silk,wool,cotton clothing is easy to have such problems mostly.   3、Color fastness to friction is not up to standard:Textile during using,there is different fading degree in different part that has different degrees.And the part most easy to fading is jacket, sleeve, elbow, collar, and armpit,also the buttocks and knees of the trousers.      The product has poor color fastness that brings the bad shopping experience for consumer and the bad influence for brand public praise.Due to reduce this negative effect for minimum level,we should launch a strict test about color fastness when the product is finished. GESTER is a company specialized in textile testing equipment,there are some Colour fastness testers from us will introduce for you to strength the color fastness and improve the quality of product ,as below: 1、GT-D07  Colour Fastness & Fabric Washing Fastness Tester 2、GT-D09  Fabric Color Fastness To Perspirometer 3、GT-D02  Environment Xenon Weathering Test Chambers 4、GT-D04  AATCC Electronic Crock Meter

Textile Sample Color Fastness To Rubbing  The whole process of color fastness to rubbing. Principle: This test is designed to determine the degree of color which may be transferred from the surface of a colored fabric to a specify test cloth for rubbing (which could be dry and Wet). Equipment that needed for measurement: 1. Crock Meter GT-D04. 2. Cotton Rubbing Cotton. 3. Grey Scale 4. Stop Watch 5. Color Matching Cabinet GT-D08. Size of Fabric: You will need to have 14 Cm * 5 Cm pieces of textile fabric sample (one warp direction/wale direction and other weft/course direction). Test Procedure of Color Fastness To Rubbing: a)Lock the test specimen (textile sample) onto the base of the crock meter. b)Using the spinal clip, set 5 Cm * 5Cm of the white cotton fabric to the finger of the crock meter. c)Lower the covered finger on the test sample. d)Turn hand crank at the rate of the one turn per second. e)Remove the white rubbing test cloth and e valuate with grey scale. Evaluation In this stage compare the contrast between the treated and untreated white rubbing cloth with grey scale and rated 1 to 5.

Crockmeter rubbing fastness tester, repair the damaged rubbing finger, clip and abrasive paper. Accidental damage to the rubbing finger, spiral clip or abrasive paper should be repaired as follows: neatly renew the abrasive paper; bend the clip further open or shut around a rod slightly smaller in diameter than the crock peg; resurface the finger by movement on an extra piece of fine emery cloth in a manner simulating regular use.

Snap Tester, to determine the holding or breaking strength of prong-ring attached snap fasteners onto garments or toys, also as a Push Pull Tester applies for compression and tensile pull testing of small samples. Application Snap Tester (Button Snap Pull Tester), to determine the holding or breaking strength of prong-ring attached snap fasteners onto garments or toys, also as a Push Pull Tester for compression and tensile testing of small samples(special attachments are available). Our snap tester consists of an upper snap clamp, a lower fabric clamp and force gauge mounted on a stand, a hand wheel on the bottom of snap tester which allows fine control with convenient operation. The snap component is gripped by the Upper Snap Clamp and the garment is fixed to the lower Fabric Clamp. By turning the hand wheel, The operator can apply a specific force and the holding force or the breaking strength can be recorded. The capability of the snap tester can be enhanced with clamps & accessories for testing of other Snaps, Jean Buttons, Four Hole Buttons & Garments Accessories such as Zippers, Bows, Appliqué, Toggles, Hooks/Bars, and D-Rings, amongst others. Standards 16 CFR 1500.51-53, ASTM PS79-96, D4846  Included Accessories Standard accessories 1pc IMADA Force Gauge FB-30K   1pc GT-MC01 Upper Universal Grip 1pc GT-MC02 Upper Stud Grip   1pc GT-MC03 Lower Fabric Clamp & Level Arm Locking  1pc GT-MC04 Lower Grasp Button Accessory Kit   1pc GT-MC05 Calibration Weight 15LB 1pc GT-M37 Three Pronged Grip  1pc GT-M43 Upper Long Nose Vise Grip  Optional accessories   Optional GT-M36 Two Pronged Clamp Optional GT-M39 Flat Clamp Optional GT-M49 Short - Mouth Clamp  Optional GT-M50 Seam Clamp  Optional GT-M53 Wide - Mouth Clamp Optional GT-MC06 Multifunction Vise Clamp Optional GT-MC07 ASTM Zipper Test Kit  Optional GT-MC09 Clamps for ASTM D4846 Weight and Dimensions Leave an inquiry for the instruments, methods or any information. We usually respond within 12 hours, or faster.

In the child's growth , toys just like their intimate partner. Parents are also happy to by all kinds of toys for their kids as it  not only can bring child happiness but also develop their intelligence. With the growth of toys demand, toy safety has been the attention of all parents, it is also the important point we pay attention to. Children's toys and the metal edges of bicycles or other sharp parts may present or produce the risk of cutting the child, so there is a need for an improved testing tool for determining the presence of sharp edges harmful to human health and safety.Therefore, sharp edge test method is an important method in the detection of toys and children's products. What is the scope of the sharp edge tester? Glass toys or parts, toys on the edge of the collision, the toy drive device shell, cover all the hard material on the face (such as goggles, space helmet or welding mask), can bear children's weight toys (such as toy cars , Skates, etc.) Sharp Edge Tester Instrument features: 1. Metal case, to ensure the durability of the instrument. 2. Hand can press, foot to make the operation more convenient. 3. Special value of the photoelectric sensor indication function, can accurately ensure that the test force value is accurate. Standards: EN 71-1,ASTM F963 ,16CFR 1500 ,ISO 8124-1,GB 6675-1 How to use the sharp edge tester? GESTER Instrument Co., Ltd. gave you a test, the gummed paper is wound on the axle center, the to-be-tested edge of a sample is arranged above the axle center and is contacted with the gummed paper, the handle starting switch is then turned on, the motor starts to rotate so as to enable the axle center to rotate at one circle, the to-be-tested edge of the sample leaves a mark on the gummed paper, and the gummed paper is then taken down from the axle center and is checked; if more than 1/2 inch of the length of the gummed paper is scratched, the edge is a sharp edge, and the product is not qualified.                                                                       (Sharp Edge Tester TEST)

GESTER always keep learning and promote ourself quality & ability. Gester International Co.,Ltd a company that specializes in Toys, Garments, Shoes testing equipment.To help sales in our company be professional providing good service, we provide product training 3-4 times a week. We always keep learning and promote ourself quality & ability. We work together, play together, support and encourage each other to move forward. Manual Elmendorf Tearing Tester GT-C10 Electronic Elmendorf Tearing Tester GT-C11A Digital Strength Tearing Tester GT-C11B