Dyeing auxilies are widely used in bottom leather, light bottom leather and fully tanned leather tanning, especially when the requirements of good fullness and 5 firmness; SETA SUN is suitable for any formulation and method (drum tanning, tanning tank, grooving). For single tanning with sole leather, the amount of SETA SUN is 50% of the tare weight. 20% -30% for full tanned leather and light bottom leather. Retanning: SETA SUN\'s high polymer extracts of cataonia tannin, which give leather good fullness and firm grain surface, as well as good skin grinding and embossing properties; The dosage of SETA SUN should be between 5%- 30% tare weight according to the requirements of finished grain surface. SETA SUN can be used in conjunction with other anionic AIDS, such as retanning, fatliquoring and dyeing; And SETASYN and SETACHEM LINES- when used together, not only can provide good fullness and grain firmness, but also can obtain other required performance.