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EN 71 KE Tester
Kinetic Energy Tester T011

T011 Kinetic Energy Tester is used to test the maximum energy produced from projectile toy shoot bullets or launched bows, so as to evaluate ejection articles will cause injury for children or not.

Dynamic Strength Tester
Toy Dynamic Strength (2m/s) Tester T012

T012 Dynamic Strength & 2m/s Tester is used test dynamic strength for wheeled ride-on toys. Simulate children wheeled ride-on toys vertically crush the inelastic step 50 x 50 mm at the stable speed of 2m/s±0.2/s, and then check the damage degree. This device can be used for children ride-on toys, such as children tricycle, toy bikes, scooters, etc.

Sharp Point Tester
Sharp Point Tester T004

Sharp point tester is to determine whether accessible sharp points on child-related products are likely to cause injury. If the accessible sharp point penetrates a specified depth into the small rectangular opening of the tester, the LED is illuminated to indicate that the point is unacceptably sharp.

Mouth Toy Endure Tester
Mouth Actuated Toy Tester T005

Used to test the safety of the Mouth-Actuated Toys, such as whistles with a ball, the sounders with a reed and other toys. Load the mouth-actuated projectile toy with the intended projectile and apply a pressure of 13,8 kPa ± 5 % in the direction of the mouthpiece for 5 s. Carry out the test 10 times in total.

Toys Accessibility Probe
Accessibility Probe T006

Accessibility Probe is used to assess the surface or components (points and surface of toys) of toys is likely to be touched and lead to hazardous. If the probe contacts the part or component, the part or component is considered to be accessible. Therefore, to do related tests based on standards to decrease hazards for children. This tools are including 2 parts: Probe A and Probe B. An accessible point for a toy or article intended for children 3 years of age or less is one that can be contacted by any portion forward of the collar of the accessibility probe designated as Probe A . An accessible point for a toy or article intended for children over 3 years of age is one that can be contacted by any portion forward of the collar of the accessibility probe designated as Probe B . An accessible point for a toy or article intended for children of ages spanning both age groups is one that can be contacted by any portion forward of the collar of either Probe A or B.

EN 71 toy tester
Sharp Edge Tester T001

T001 Sharp edge tester is used to determine whether the accessible edges on child-related products are likely to cause potential risk of injury after normal use and reasonable abuse. Those child-related products include metal or glass edges on toys and other articles intended for use by children under 8 years of age.

ISO 17707 Whole Sole Flexing Machine
Whole Sole Flexing Machine H018

H018 Whole Sole Flexing Machine, to measure the material's resistance to incision elongation(cut growth) during repeated flexing, especially for outsoles of protective footwear, including soles. The machine has three vertical or horizontal stations available for customized and is easy to operate. Loading, unloading and measurements are also much easier to carry out with the workstations provided. The sample flexes at speed of 140 times per minute, and the exact number is recorded in a counter that has been preset to the required number of flexing. A fixture can be used to position the steel chisel, which can be used to support the sample after the initial chipping. All mobile parts that need access are fully protected with a fully interlocked security cover to ensure that the machine complies with the latest security regulations. A manual device can be used to measure the hardness of the outer bottom and check whether the outer bottom must be twisted in accordance with EN ISO 20344. UTS also provide a version of this machine for testing at low temperatures allowing tests to be conducted down to -20°C.

Water Resistance Tester
Shoe Water Resistance Tester H009

To determine the waterproofness property for finished shoes. Within the specified depth of water, whole shoe will be mechanically brushed by rotary wet brush, so as to measure the water penetration property for finished shoe.

NBS Abrader - Abrasion Tester
NBS Rubber Abrasion Tester H014

To determine the abrasion resistance property for rubber or other compounds, sole and heel materials which are not less than 2.54mm in thickness. This machine has memory function so that users can set the number of tests by themselves. The current records will be kept not to change even if power failure or stop occurs. It also can be connected to a cleaner for easy cleaning.

astm d1424  Elemendorf Tear Tester
Digital Elemendorf Tear Tester M006B

To determine the tearing resistance strength (Elmendorf method) for various textiles. Also available for thick paper, plastic cloth and electrical insulating tapes. Three interchangeable pendulums ranging from 16,000 to 128,000 Millinewtons (mN) can be selected separately for multiple test method compliance.

45 Degree Flammability Tester
45 Degree Automatic Flammability Tester M015

To determine textile damaged area and length at 45 degree condition and the times of touching flame when textile is melted to specified length after heated at 45 degree condition. Stainless steel test cabinet with glass observation panel provided with automatic timing of flame spread in 0.1 second increments from ignition. Automatic or manual flame impingement for 1,5 or 20 seconds.

Water vapor transmission rate tester
Water Vapour Permeability Tester M029

To determine water vapor permeability (waterproofing and moisture-penetration performances) for various fabrics (including moisture permeable coated fabrics) and Non-woven fabric for garment usage including bat wool, space cotton, etc.

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Three different test methods for fabric tear strength tester

2019-07-04

Fabric tear strength tester is a common test instrument for testing fabric tear strength. There are three standard test methods, including trouser method (GB/T3917.2 -- 2009), trapezoidal method (GB/T3917.3 -- 2009) and impact pendulum method (GB/T3917.1 -- 2009).The results of three different test methods were analyzed by the engineers of UTS international co., LTD.

1. Trouser method

When the trousers method is torn, a force triangle of yarn is formed at the crack. When the stressed yarn is gradually separated, the non-stressed yarn has some relative movement and gradually draws close, forming an approximate force triangle area.Sliding is limited due to friction resistance between yarns.During sliding, the tension of the yarn increases rapidly and the elongation of deformation increases sharply. When the yarn forming the bottom edge of the stressed triangle deforms to breaking elongation, the yarn immediately breaks.Obviously, when other conditions are the same, the larger the stressed triangle is, the more yarn roots are stressed at the same time, the stronger the tearing force will be.Tearing is the breaking of the yarn in the fabric, so the tearing strength is approximately proportional to the yarn strength.In addition, the larger the elongation at break of yarn is, the larger the stressed triangle will be, and the larger the number of stressed yarn roots will be, the greater the tearing strength will be.When the friction resistance between longitudinal and transverse yarns is large, the yarns of the two systems are not easy to slide, the stressed triangle becomes smaller, and the number of stressed yarns is small, so the fracture strength becomes smaller. Therefore, the friction resistance between warp and weft yarns plays a negative role in the fracture strength.The yarn broken by the trouser method is the yarn in the direction of indirect force.

Fabric tear strength tester

2. Trapezoidal method

Also has a triangle in the trapezoid method torn, but because of the trapezoidal specimen clamping when transverse yarns and chuck is not vertical, horizontal but shows a certain Angle, the tensile fracture yarn and stress direction in the process of a certain Angle, the fracture mode is mainly produced by the direct force of yarn straight and deformation, when other things being equal, using the method of tear strength mainly depends on the size of the yarn faults.

3. Impact pendulum method

When the impact pendulum method is used to tear, an approximate force triangle of yarn is formed at the crack. When the stressed yarn is gradually separated, the non-stressed yarn has some relative movement and gradually draws close, forming an approximate force triangle area.The main factors affecting the tearing strength are the strength of the yarn itself and the mutual friction between the yarn.

The common feature of the three test methods is that the fabric tearing is realized by breaking the yarn one by one. According to tearing, it is called warp tearing or weft tearing respectively. In the tearing process, the fabric around the broken yarn increases the breaking strength that a single yarn can bear due to the skewness and slip of the yarn.In addition to the drop hammer method, the other test methods all adopt fabric strength machine. The tensile speed is 100mm/min, and the tensile strength is defined as the peak value or the average value of the peak value in the tensile process.The tearing strength measured by constant tension method is generally higher than that measured by drop hammer method. The reason is that the tearing strength of the yarn in the fabric does not have more time to slide with each other in the high-speed impact process. As a result, the triangle area of tearing force becomes smaller and the number of stressed yarn roots decreases, so the tearing strength is lower.As the drop weight test is closer to the simulated wearing state and can better reflect the durability and tenacity of the finished fabric after finishing, this method is used for the inspection of finished products.The single-seam method is generally used for the fabric with equal tearing strength in warp and weft directions, while the trapezoidal method is suitable for testing the fabric with great tearing strength difference in warp and weft directions.



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