színtartó

The Hungarian word "színtartó" translates to "colorfast" in English. It is an adjective used to describe materials, particularly fabrics and textiles, that do not fade or bleed their color when exposed to certain conditions. These conditions can include washing, exposure to sunlight, rubbing, or contact with other substances like water or perspiration.

A fabric that is "színtartó" has been treated or manufactured in a way that makes its dyes resistant to these common causes of color loss or transfer. This is a desirable quality for clothing, upholstery, and other textile products, as it ensures the item retains its original appearance for a longer period. Testing for colorfastness is a standard part of textile manufacturing and quality control. Different types of colorfastness tests exist, such as wash fastness, light fastness, and rub fastness, each assessing the material's resistance to specific forms of stress.

Materials that are not "színtartó" may exhibit color bleeding, where the dye transfers from one part of the fabric to another or to adjacent items during washing or use. They may also fade, losing their vibrancy and becoming duller. The degree of "színtartó" can vary significantly between different fabrics and dye types. Natural dyes, for instance, are often less "színtartó" than synthetic dyes, though advancements in dyeing techniques have improved the colorfastness of many materials across the board.