Rotary Crockmeter - TNG1035

The TNG1035 Rotary Crockmeter is designed to assess the colour fastness of textiles to dry or wet rubbing. The instrument applies a vertical pressure of 1134g to a rubbing head with diameters of 16mm and 25mm, and rotates 1.125 turns in a clockwise and anti-clockwise motion. It is suitable for testing a range of materials including leather, plastic, and textile fabrics, particularly those used in shoe uppers. The TNG1035 supports testing according to AATCC 116 and ISO 105x16 standards. The machine features a touch screen control system with Chinese and English menus, allowing for user-friendly operation. It enables users to set the number of friction cycles, rotational time, and automatically stops when the set value is reached. The testing head is standard round, ensuring smooth contact and accurate results. The sample clamping mechanism uses spring steel to secure samples effectively. The instrument is constructed with non-corrosive materials and stainless steel components for durability and long-term use.

Rotary Crockmeter, is a special crock meter for testing the color fastness(to dry or to web rubbing) of textiles, particularly for leather, plastic, and textile or printer fabrics, fabric crocking, features in rotary movement.

The rotary crock meter applies 1134 grams of pressure on a 16mm testing head and rotates 1.125 turns clockwise and then anti-clockwise. In a word, it is one of the friction testers, or crocking test machines, which has been widely used in the crocking test.

Convenient operation. Touch screen control, Chinese and English menu, human-machine dialogue mode, convenient operation.

Practicality. Free to set the number of friction, can be forward and backward counting can set the rotational friction time, to the set value automatically stop.

Accurate testing. Standard round friction head, smooth friction contact, sample clamp made of spring steel, ensure fast fastening of samples and reproduce results. The perfection of details is the only way to achieve accurate testing.

Durable. Mechanical components are made of non-corrosive construction and stainless steel parts for long life and cost savings.

• Rubbing head: Dia.16mm&25mm
• Vertical pressure: 1134g
• Rotation: 1.125turns
• The testing procedure of Rotary Crock Meter
• Dry abrasion color fastness test
• 1) Install a piece of wool felt on the test bench and fix its position.
• 2) Cut a piece of test cloth from the standard white cotton cloth, place a piece of circular fitting on the wool felt, place the test cloth, i.e. the sample, on top of the circular fitting, and adjust the sample position so that the friction head can touch the part of the sample to be rubbed.
• 3) Install a weight on the upper end of the instrument so that the vertical rod can apply 1143g of pressure to the sample.
• 4) Turn on the switching power, wait for the display to start, set the speed and time, and press the start button, the wool felt and the sample will start to rub alternately clockwise and counterclockwise.
• 5) When the time condition is reached, the instrument stops rotating, removes the weights, and takes out the sample and the wool felt for testing. The sticky color of the wool felt is evaluated.
• 6) For evaluation, place the tested white cotton felt on 3 layers of white cotton cloth of the same material.
• The color fastness of the sample is evaluated using AATCC color cards or tinted gray cards.
• Wet abrasion color fastness test
• 1) Wetting of the sample: Wet the sample with distilled water and pass the sample between filter papers through the squeezer, or remove excess water by any other convenient means.

• Rubbing head: Dia.16mm&25mm
• Vertical pressure: 1134g
• Rotation: 1.125turns

Purpose and Scope This method is used to evaluate the degree of color transfer from the surface of colored textiles to other surfaces due to friction. It suitable for colored yarns and fabrics made of various fibers, including dyed, printed and other colored yarns and fabrics. Especially suitable for printing textiles whose area is too small to be tested by standard method AATCC 8. This test method uses friction cloth, including dry friction cloth, water wetted friction cloth or friction cloth wetted with other liquids permitted by this method. Test Principle The specimen is fixed on the base of the rotating vertical friction instrument and friction with the standard friction cloth under specified conditions. To evaluate the degree of color transfer to a standard friction cloth by comparing it with a stained gray card or an AATCC color card.