What is a crock in fabric?
Some people use the term crock when referring to fabrics to include any wet dye transfers that occur outside of the wash. You know when it is raining or you got splashed and the next thing you know the color of the fabric on the chair you were sitting on, is now on your dress nice pants.
What is the cause of crocking in textile?
Crocking can be the result of lack of penetration of the dyeing agent, the use of incorrect dyes or dyeing procedures, or the lack of proper washing procedures and finishing treatments after the dyeing process. If the textile dying or printing process is not done properly, the rubbing-off of dye from a fabric may occur.
What is the meaning of just a crock?
1. a. An earthenware vessel. b. A broken piece of earthenware. 2. Slang Foolish talk; nonsense: That story is just a crock. [Middle English crokke, from Old English crocc. Sense 2, short for crock of shit .]
How do you test for wet crocking on fabric?
To test for wet crocking the standard fabric is wet before rubbing against the test fabric. After rubbing under controlled pressure for a specific number of times the amount of color transferred to the white test squares is compared to an AATCC color chart and a rating is established."
How do you keep fabric from Crocking?
How to Stop Clothes Bleeding in the WashColor Test. Before washing the garment with other clothes, do a color test. ... Hand Wash Separately. ... Use Cold Water. ... Color Catcher. ... Dye Fixative. ... Sort With Similar Colors. ... Reduce Friction.
What is the difference between rubbing and Crocking?
Transfer of dye from the surface of a dyed or printed fabric onto another surface by rubbing. The more color is transferred, the more the fabric "crocks". Crocking determines the amount of color transferred from the surface of colored textile material to other surfaces by rubbing.
What is wet and dry Crocking?
Wet or Dry Crocking is defined as the transfer of dye from the material surface onto another surface due to rubbing. Wet crocking is when dyes bleed due to exposure to moisture and dry crocking is when dyes bleed due to rubbing or exposure to another material.
What is color fastness to Crocking?
the resistance of a material to change in any of its color characteristics, to transfer of its colorants to adjacent materials, or both, as a result of the exposure of the material to any environment that might be encountered during the processing, testing, storage, or use of the material.
How do you check rubbing fastness?
A test for fastness to rubbing can be performed on dry or wet fabric. The tester needs a small piece of the fabric and a white test cloth. The test cloth is put on the grating and stag using stainless steel wire. The cloth swatches are rubbed together to see how much color rubs off on the test cloth.
What is a Crockmeter?
The Crockmeter provides a quick and accurate method to determine the amount of color transferred from textile materials (such as fabric, carpeting, yarn and leather) to other surfaces by rubbing. The Crockmeter has also been employed to perform rub abrasion, scuff and / or mar tests on flat specimens.
What is it called when color rubs off fabric?
Crocking refers to the rubbing off of color from a fabric when subjected to abrasion. One test is the AATCC 8-2001. This “is a test method of the American Association of Textile Chemists and Colorists (AATCC). This method uses a standard white cotton fabric that is rubbed against the surface of the test fabric.
What is fabric skewing?
Skewing is a similar condition in which filling yarns are angularly displaced from a line perpendicular to the edge or side of the fabric. Bowing and skewing affects striped or patterned fabric quality more than for solid color fabrics, as the greater contrast in patterns makes the distortion more prominent.
What does Wyzenbeek mean?
Wyzenbeek involves rubbing along the warp and weft of the fabric whereas Martindale is a figure-8 rub. Success in one test does not infer success in the other. The Wyzenbeek and Martindale tests are the two methods commonly used to predict wear-ability.
How can I improve the color fastness of Crocking?
During rubbing both colour and coloured short fibres are transferred to the crocking cloth so it is better to use combed yarn. Fabric or yarn surface characteristics: Smooth surface definitely will give good rubbing fastness.
How do you test the color fastness of fabric?
Colour Fastness Testing on Fabrics can be done by 5 methods. They are:Colour Fastness due to rubbing.Colour Fastness due to washing / Dry-cleaning.Colour Fastness due to Perspiration and Sea Water.Colour Fastness due to sunlight.Colour Fastness due to hot pressing and Dry Heat.
How do you determine the color fastness of fabric?
Colour fastness is assessed by comparing the change in colour of the test specimen with that of the references. This method can also be used to determine whether a textile is wet light-sensitive.
Why does my fabric crock?
Crocking can be the result of lack of penetration of the dyeing agent, the use of incorrect dyes or dyeing procedures, or the lack of proper washing procedures and finishing treatments after the dyeing process. If the textile dying or printing process is not done properly, the rubbing-off of dye from a fabric may occur.
What is crocking in fabric?
Crocking occurs when excess dye rubs off of one dry fabric onto another dry fabric. Crocking is usually more of a problem with dark and vivid colors. Note: during testing, colorfastness can be tested on wet and dry fabric. Bleeding is a similar problem to crocking, but occurs when dyes transfer from one fabric to another when fabrics are wet.
What is the test for wet crocking?
One test is the AATCC 8-2001. This "is a test method of the American Association of Textile Chemists and Colorists (AATCC). This method uses a standard white cotton fabric that is rubbed against the surface of the test fabric. To test for wet crocking the standard fabric is wet before rubbing against the test fabric.
What is colorfastness test?
Colorfastness is a fabric's ability to retain color in various conditions. Tests are performed that involve wet and dry crocking. Crocking refers to the rubbing off of color from a fabric when subjected to abrasion. One test is the AATCC 8-2001.
What is the difference between crocking and dyeing?
Bleeding is a similar problem to crocking, but occurs when dyes transfer from one fabric to another when fabrics are wet. Crocking occurs when the dye is physically rubbed off. Bleeding is when dye comes of the fabric when dye comes into contact with liquid. Examples:
What does colorfastness mean in clothing?
Colorfastness. Clothing is colorfast if its colors and dyes do not bleed or run from the clothing. Colorfastness is often tested by clothing manufacturers. Color fastness is a term used in the dyeing of textile materials, meaning resistance of the material's color to fading or running. The term is usually used in the context of clothes.
What is crocking in textiles?
Crocking determines the amount of color transferred from the surface of colored textile material to other surfaces by rubbing. Dye crocking is the result of color loss by mechanical actions such as friction and abrasion.
What would happen if there was a perfect fabric?
If there was a perfect fabric it would not need cleaning. Dirt, grease, grass stains would just slide right off and harmlessly fall to the ground. Unfortunately, there is no perfect fabric, and learning. Continue reading.
When to wear a light jacket?
When the day isn't too cool and not too hot, light jackets are the perfect clothing item to wear, especially when you need pockets. These jackets add a nice casual touch to your look and you can do just. Continue reading.
Is shiny fabric slippery?
They look good but they may be hard to work with as shiny fabrics can also be slippery materials. it will depend on the type of shiny fabric that you chose as to the degree of difficulty you will have
What does "crock" mean in slang?
crock. ( krɒk) n. 1. slang chiefly Brit a person or thing, such as a car, that is old or decrepit (esp in the phrase old crock ) 2. (Animals) an old broken-down horse or ewe. vb. slang chiefly Brit to become or cause to become weak or disabled.
What did the sailor find in the crock?
He found several sealed bottles of sterilized milk, much mineral water, two tins of biscuits and a crock of very stale cakes, cigarettes in great quantity but very dry, some rather dry oranges, nuts, some tins of canned meat and fruit, and plates and knives and forks and glasses sufficient for several score of people.
