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Rotary Crockmeter TF412

4.5 (2 reviews)

Rotary Crockmeter,is used to evaluate the degree of material damage and surface color transfer after dry or wet abrasion,or to determine the colour fastness of textiles to dry or wet rubbing.It is mainly applied to shoe upper materials such as leather, plastic and textile. It can also be used to evaluate the fastness to rubbing of printed lettering on the surface of shoes.The principle of the test is to use a round wool felt (dry or wet) to press the sample with a fixed weight, and the wool felt is rotated to rub the sample.After a fixed number of rubbings, the degree of discoloration of the samples was evaluated by a standard gray card.

Description

Application of  Rotary Crock Meter TF412

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.

 

Features of Rotary Crock Meter TF412

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.

Specifications of Rotary Crock Meter TF412

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

Original Accessories of Rotary Crock Meter TF412

  • AATCC rubbing clothing 1 box
  • Sandpaper 2 (pcs)
  • Rings 2 (Pcs)

Weight

25 kg

Dimensions

Length:250 mmWidth:350 mmHeight:450 mm

Standards of Rotary Crock Meter TF412

AATCC 116ISO 105x16

The testing procedure of Rotary Crock Meter TF412

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.
2) The rest of the procedure is the same as dry abrasion.
3) After the wet state test is completed, the sample should be allowed to dry naturally in the air before the evaluation of the sample.

Recording
1) It should be recorded that: the degree of sticky color at the rounded edges will be more severe than at the center of the circle 2) Evaluate the degree of sticky color at the rounded edges.
3) Classify the results of the wet and dry tests separately. 4) Indicate whether the wet or dry test was performed. 5) Indicate whether gray or colored cards were used for the evaluation.

For more crock meter test methods, please contact us.

Why Choose TESTEX Rotary Crock Meter TF412

Strictly meet standards

All data for the TF412 fabric crocking machine meet the standard parameters.

Consistency with international third-party laboratories

The test data are comparable to the test results obtained by well-known international third-party laboratories.

High repeatability

With the same set of samples, and the same machine, and after multiple tests, the results are consistent.

High reproducibility

With the same set of samples, and different machines of the same model, after multiple tests, the results are consistent.

Longer service life

TESTEX makes prototypes and then subjects them to rigorous reliability testing in a variety of environments to ensure achieve the expected service life.

User-friendly transparent warranty policy

Textile testing machines, 14 months free warranty (12 months normal warranty time + 2 months shipping time). Besides, all spare parts, have 3 months free warranty.

We provide full life-cycle support for Crock Meter Rotary TF412, and other crocking test machines, So feel free to contact our service team with any questions you may have.










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    2 reviews for Rotary Crockmeter TF412

    1. Roxanne Owen

      As expected.

    2. GREAT ITEM GREAT PRICE

      GREAT ITEM GREAT PRICE

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    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.

    Sample Preparation


    The specimen may be of various structures and be tailored to a certain area according to the rule. Before testing, the sample and friction white cloth should be moistened according to the method of textile humidification. Place each sample or frictional white cloth at least 4H under atmospheric conditions of 21℃±1℃ and relative humidity of 65%±2%.

    Manual Friction Instrument Operation Procedure of Dry Friction


    1 Place the standard friction cloth at the end of the vertical bar and fix it with a spring clip.

    2 Fix the specimen on the base of the instrument, it fixed to the position where the vertical rod is in contact with the base so that the friction cloth at the end of the friction rod can contact the sample. Put the weight of the friction instrument on the vertical pole, and apply a certain downward pressure to the friction head.

    3 Fix the specimen on the base with the left hand and rotate the crank with the right hand to make the sample rub with the standard friction cloth for a certain number of times. Then take out the sample and friction cloth and evaluate it.

    Operational Notice


    If the friction white cloth is non-circular due to the uneven color of the stained white cloth, it is indicated that the friction head may need to re-repair the surface. If an elongated pattern of ghost is generated, it is shown that the spiral metal clip may be loose. If there is a rubbing mark on the edge of the specimen, it is indicated that the spiral metal clip is installed down and the position is not high enough.

    If the friction area of the friction sandpaper on the friction base is found to be smooth compared with the adjacent area by hand or if the sample is obviously sliding, the friction sandpaper should be replaced in time.

    How to test dry friction fastness of fabric with the manual friction instrument? Through this article, I think you might have got some information. If you want to know more about wet friction and automatic friction, please contact us. As a professional supplier of textile instruments, we are committed to continually improve the user experience, TESTEX Textile Testing Equipment is a reliable choice for testing textile quality.

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