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Updated: Apr 27, 2026

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Colorimetric Detection of Bacteria Using Litmus Test
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Colors in Disposable Diapers: Addressing Myths
Eric B Evans1, C Tucker Helmes2, Taryn Kirsch3
1Kimberly-Clark Corporation, Roswell, GA USA.
Clinical Pediatrics
|June 26, 2014
Summary
Colors in disposable diapers use safe, nonsensitizing pigments, not harmful disperse dyes. Safety tests confirm these pigments do not cause skin irritation or sensitization in infants.
Area of Science:
- Dermatology
- Materials Science
- Consumer Product Safety
Background:
- Colors enhance disposable diaper appeal, but concerns exist regarding potential skin sensitization.
- Past assumptions about dye usage in diapers have been based on textile industry standards and inaccurate reports.
- Leading disposable diaper manufacturers utilize specific colorants with established safety profiles.
Purpose of the Study:
- To clarify the types of colorants used in disposable diapers.
- To address safety concerns regarding skin irritation and sensitization from diaper colorants.
- To differentiate between textile dyes and pigments used in diaper manufacturing.
Main Methods:
- Analysis of colorant composition in leading disposable diaper brands.
- Review of scientific literature on dye and pigment safety profiles.
- Examination of safety testing data, including skin patch tests.
Main Results:
- Disposable diapers predominantly use nonsensitizing pigments, not disperse dyes.
- These pigments are integrated into diaper fibers during manufacturing.
- Safety assessments, including skin patch tests, show no evidence of irritation or sensitization.
Conclusions:
- The colors used in modern disposable diapers are safe and nonsensitizing.
- Concerns regarding disperse dye use in diapers are unfounded.
- Current pigments offer a favorable safety profile for infant skin contact.
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