Цитата:
Сообщение от wako
а мы только про плохой хром, а про хорший нельзя? и не только рабочую делают
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Хороший хром, по крайней мере по Вашей ссылке, это не хром в его общепринятом понимании.
Вот что происходит на Хорвине после традиционной хромовой обработки: "This is where it starts to get interesting. Wet blue hides are sorted for initial quality so that the proper "selections" are made - for grain character, weight/thickness, scratches, scars, brands, etc. Next comes retanning, and it's where the secrets begin. Specific and proprietary mixes of bark extracts and natural agents are used to give Chromexcel, and many of our leathers, its heavy vegetable retannage. The benefit of combination tanning comes from the specific attributes that both chrome and vegetable tanning impart. Generally, chrome tanned leathers yield soft, supple, and durable leathers, while vegetable tanned leathers are round and full feeling, patina well, and are easy to coax into shapes using heat and moisture.
The next step is "hot stuffing" - that is, the impregnation of the hides with oils, waxes, and greases that are solid at room temperature. Stuffing is achieved through the use of steamed mills, and is the process that is responsible for the "pull-up" of this leather. Pull-up is the temporary displacement of these oil and wax blends that cause a lightening of the leather. Our philosophy that you need to use the best components to make the best leather is particularly evident in this department, where we create blends using products like food-grade beef tallow and cosmetic-grade beeswax."
Отсюда:
https://www.horween.com/blog/2010/03...mexcel%C2%AE-2