Suitable Applications:
- Heavy-duty, color and mild wash detergents (powder, tablets or liquid products)
- Descaling products (powder, tablets or liquid products)
- Booster products (e.g. stain salts, pretreatment products)
- Color or dirt catcher sheets
Detergent Tests for Maximum Quality
In our well-equipped household laundry technology facilities, our specialists test the cleaning effect, primary and secondary washing effects, labeling conformity, disinfection and effect on the washed item.
Testing
Applications
Videos
Investigation Criteria:
- Removal of natural stains
- Removal of dirt on test fabrics
- Cleaning effect and/or dirt dispersing capability
- Loss of firmness and/or chemical damage of the washed item
- Inorganic and/or organic fabric encrustation
- Retention of color tone and/or surface protection
- Color transfer prevention in the Linitest device and/or in the washing machine
- Legibility and clarity of packing information
- Disinfection effect
Detergent Testing: Stain Removal
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Detergent Testing: Greying
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Comparative Detergent Tests for Market Transparency
Many of our investigations are conducted as comparative product tests - objective performance comparisons of defined characteristics against at at least one reference product.
Hohenstein emphasizes practical test design for real-life conditions and considers current regulations and standards. The reference product can be a previous model of your product or another product for competitive benchmarking.
Malodor Tests for Detergents
In addition to their cleaning effect, an important performance characteristic of detergents is whether - and to what extent - undesirable odors remain in the textiles after washing. We assess detergent products, such as powders, liquid detergents or gel caps, for how much they reduce or completely prevent sweat odor.
Testing
Panelist Evaluations
Technical Testing
- Scope:
Assessment of the odor intensity of artificial sweat after 1 wash - Odor application:
Hohenstein artificial sweat is applied in standardized way on a suitable textile (e.g. PES) - Assessment:
The odor intensity is assessed by trained odor panelists according to VDI 3882, using an olfactometric device
Wash and Wear Testing with Panelists
- Scope:
Assessment of the odor intensity of artificial sweat after 5 wash and active wear cycles - Odor application:
Garments (e.g. athletic shirts) are worn by test persons in an application-specific activity - Assessment:
The odor intensity is assessed by trained panelists according to VDI 3882, using an olfactometric device
and/or by consumer panelists
Household Laundry Disinfectants and Hygienic Rinsers
Where germ-contaminated textiles cannot be hygienically cleaned by high-temperature washing or other household remedies, laundry disinfectants and hygienic rinsers can help to prevent pathogens from spreading, even at low temperatures (68 to 104°F).
We offer a standardized test procedure (DIN EN 17658:2022-11) that independently evaluates the disinfecting effect of detergents and rinsers for domestic use. Our simulation test of a common household laundering considers the disinfection performance of a product - with separate data for the wash and rinse cycles.
Our test method is also suitable for evaluating biocidal detergents for their ability to prevent odors or aesthetic impairment caused by microorganisms.
Testing
Benefits
Test Strains Used
Required:
- Pseudomonas aeruginosa ATCC 15442
- Escherichia coli ATCC 10536
- Staphylococcus aureus ATCC 6538
- Enterococcus hirae ATCC 10541
- Candida albicans ATCC 10231
Additional (optional):
- Dermatophytes
- Microorganisms associated with malodor
With Hohenstein, you get:
- Standardized, independent test report with detailed results
- Objective determination of the bactericidal and levurocidal effect of household laundry detergent
- Determination and specification of the effective dose for germ elimination
- Basis for use instructions
- Simulation of a household washing process for temperature-sensitive textiles (temperature range between 20 and 40° C)