Verification method of actual cleaning efficiency of portable sensitive organic mini baby wipes

In the field of infant care, portable sensitive organic mini baby wipes have become the choice of many parents due to their convenient carrying and natural and mild ingredients. However, the verification of the actual cleaning efficiency of the product is related to its use effect and safety, and is an important link in product research and development, production and quality control. So, how to scientifically and rigorously verify the actual cleaning efficiency of portable sensitive organic mini baby wipes?

1. Clarify the definition and verification standard of cleaning efficiency
Cleaning efficiency refers to the ability of baby wipes to remove stains and dirt. Before verification, specific cleaning efficiency indicators and judgment criteria need to be clarified. Common cleaning efficiency indicators include the removal rate of common stains, such as the removal of simulated milk stains, saliva stains, fruit puree stains and other stains that infants and young children contact daily; and the inhibition or removal ability of bacteria, viruses and other microorganisms.
For the judgment standard of stain removal rate, it can be set under specific experimental conditions, and reaching a certain removal percentage is considered qualified. For example, for the removal of milk stains, if more than 80% of the simulated milk stains can be removed within the specified time, the baby wipes are considered to have good cleaning performance in removing milk stains. For the removal or inhibition of microorganisms, reference can be made to relevant hygiene standards, such as reducing the number of bacteria in a specific area to a certain level or inhibiting bacterial growth to a specified degree under the specified test method.

2. Select appropriate samples and experimental subjects
(I) Sample selection
Product samples: Select portable sensitive organic mini baby wipes from different batches and production dates as test samples. Ensure that the samples are representative and cover various possible situations in the production process, such as products produced on different production lines and in different production time periods. At the same time, ensure that the storage conditions of the samples meet the product requirements to avoid affecting the cleaning performance of the wipes due to improper storage.
Stain samples: Prepare simulated stain samples. To simulate milk stains, milk, milk powder, etc. can be prepared in a certain proportion; to simulate saliva stains, artificial saliva can be used; to simulate fruit puree stains, common fruits eaten by infants and young children, such as bananas and apples, can be selected and made into puree. These simulated stains should be as close as possible to the composition and characteristics of stains that infants and young children may be contaminated with in their actual lives.
(II) Experimental subjects
Experimental carrier: Select materials similar to infant skin as experimental carriers, such as artificial skin. The material, texture and physical and chemical properties of artificial skin should simulate real skin as much as possible to ensure the reliability and effectiveness of the experimental results. In addition, common infant clothing materials such as cotton and silk can also be used as experimental carriers to test the cleaning effect of baby wipes on different materials.
Microbial samples: Select common microorganisms that may exist in infant skin and living environment, such as Staphylococcus aureus and Escherichia coli, as test microbial samples. These microbial samples should be obtained from regular microbial strain collection institutions and cultured and preserved according to standard methods.

3. Design a scientific and reasonable experimental plan
(I) Stain removal experiment
Experimental steps: Apply the simulated stain evenly on the experimental carrier, wait for the stain to dry naturally, and then wipe it with a portable sensitive organic mini baby wipe. The wiping process must follow unified operating specifications, such as wiping strength, direction, number of times, etc., to ensure the comparability of experimental results. After wiping, the experimental carrier is cleaned and dried.
Detection method: Use optical or chemical detection methods to analyze the residual stains. Optical detection can compare the changes in the area, color depth, etc. of the stains before and after wiping through microscopic observation or image analysis technology to calculate the stain removal rate. Chemical detection can evaluate the cleaning efficiency by measuring the changes in the content of specific components in the stains.
(II) Microbial removal or inhibition experiment
Experimental steps: Inoculate the microbial sample evenly on the experimental carrier, and after the microorganisms grow on the carrier for a certain period of time, use baby wipes to treat it. The treatment process must also maintain consistency of operation. After the treatment is completed, the experimental carrier is placed in a suitable culture environment and continues to be cultured for a certain period of time.
Detection method: Use microbial culture and counting methods to count the number of microorganisms on the experimental carrier before and after treatment. By comparing the changes in the number of microorganisms, the ability of baby wipes to remove or inhibit microorganisms can be evaluated. Molecular biological detection techniques, such as PCR technology, can also be used to detect the presence and number changes of microorganisms.

4. Collection and analysis of experimental data
(I) Data collection
During the experiment, various experimental data should be recorded in detail, including the amount of stain applied, wiping time, wiping force, and amount of stain residue in the stain removal experiment; the amount of microbial inoculation, treatment time, and number of microorganisms after treatment in the microbial removal or inhibition experiment. At the same time, the environmental conditions during the experiment, such as temperature and humidity, should be recorded, as these factors may affect the experimental results.
(II) Data analysis
The collected data should be analyzed using statistical methods. For the stain removal rate data, statistical quantities such as the mean and standard deviation can be calculated to evaluate the cleaning efficiency differences between different samples. Through methods such as variance analysis, it can be determined whether the effects of experimental conditions, sample batches, and other factors on cleaning efficiency are significant. For the microbial removal or inhibition experimental data, methods such as t-test can be used to compare whether the difference in the number of microorganisms before and after treatment is statistically significant.

5. Result evaluation and report writing
(I) Result evaluation
The experimental results are evaluated according to the pre-set cleaning efficiency standards. If the product meets or exceeds the standards in all indicators, it is considered that the portable sensitive organic mini baby wipes have good actual cleaning performance; if some indicators do not meet the standards, it is necessary to analyze the reasons, which may be problems with the product itself or the operation or conditions during the experiment. If necessary, the experiment can be repeated.
(II) Report writing
Write a detailed verification report. The report content should include the purpose of the experiment, experimental methods, experimental process, experimental data, result analysis and conclusions. The data in the report should be true and accurate, the analysis process should be rigorous and scientific, and the conclusions should be objective and clear. By writing a report, the verification results are systematically organized and presented to provide a basis for product quality evaluation and improvement.