摘要 |
The invention relates to a method for chemically cleaning textile material, characterized in that the textile material is treated with a compound of formula (1), wherein R1, R2, R3, and R4 identically or independently denote C1 to C22-n- and/or iso-alkyl, C5- or C6-cycloalkyl, phenyl-C1-C4-alkyl, C1-C9-alkylphenyl or phenyl, A is (CH2)a, and a is an integer from 0 to 6.
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