FIELD: chemistry.
SUBSTANCE: disclosed is a colour-developing composition comprising a colour-appearing leuco dye, a colour-developer and a desensitizer. Desensitizer includes betaine or Girard's reagent. Also disclosed is a colour-changing material including composition described above.
EFFECT: also disclosed is an absorbent product containing composition described above.
14 cl, 3 dwg, 2 tbl, 11 ex
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