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Sanitary napkin quality testing equipment

Date: 2021-12-22 19:20
Views: 1082
Abstract: the permeability, softness, adhesive strength, whiteness, UV, thickness gauge, dust degree and other physical indicators of sanitary napkin should be caused by the manufacturers

Sanitary napkin quality testing equipment

Sanitary napkin is a kind of absorbent material, the main material is cotton, non-woven fabric, pulp or the composite of high polymer and polymer. The sanitary napkin with good absorption effect and soft material is favored by women. Sanitary napkin is a common household product in women's daily life. Therefore, people pay more attention to the quality of sanitary napkins. Among them, the physical indicators such as permeability, softness, adhesive strength, whiteness, ultraviolet, thickness gauge, dust degree and other physical indicators should be paid attention to by the manufacturers. Jinan Chenchi In the study of GB / t8939-2008 "sanitary napkin (including sanitary pad)" standard, we developed several professional testing instruments for sanitary napkin quality.


Diaper permeability tester STX-01

1. Permeability test of sanitary napkins;

Sanitary napkin permeability test is also called diaper permeability tester STX-01 The instrument can adjust the test angle of 0-40 ° to meet the requirements of different standards for penetration angle. It is mainly used to test the permeability of diapers, sanitary napkins, sanitary pads and other products.

The principle of sanitary napkin permeability test: the three elements of permeability: the amount of sliding, the amount of back osmosis and the amount of leakage. The amount of sliding permeability refers to the volume of a certain amount of test solution that is not absorbed when it flows through the surface of the inclined sample. Reinjection amount: the quality of test solution returned to the surface layer under a certain pressure after the sample absorbed a certain amount of test solution. Leakage volume: the quality of the test solution that the sample absorbs a certain amount of test solution and passes through the anti leakage bottom film under a certain pressure.


Diaper softness tester ZRD -1000

2. Softness test of sanitary napkins;

Because there is no standard for testing the softness of sanitary napkins, in order to meet the needs of the market, Jinan Chenchi According to the national paper softness 8942-2016 standard, the technical personnel of sanitary napkin softness tester was developed ZRD -1000。 Sanitary napkin softness tester ZRD -It is suitable for measuring the hand softness of tissue paper, toilet paper, wet towel, * * sheet, sanitary products and other materials

Testing principle of sanitary napkin softness: under the specified conditions, when the sample is pressed into a certain depth (about 8mm) by the plate probe of the softness meter, the sum of the bending force of the sample itself and the * large vector of the friction force between the sample and the gap is called softness. Expressed in millinewtons, the smaller the softness value, the softer the sample is


Testing of adhesive strength of sanitary napkin back adhesive  WSJ-NH03

III. test of adhesive strength of sanitary napkin back

Adhesive strength tester WSJ-NH03 yes Jinan Chenchi According to GB / t8939 standard. However, GB / t8939 has changed the adhesive strength index of sanitary napkin from qualitative assessment to quantitative assessment, which requires that the adhesive strength of sanitary napkin should not be less than 8 seconds. Although the reference data is not used to judge whether it is qualified or not, it should at least provide a reference data for manufacturers, quality inspection institutions and colleges and universities, It also provides a basis for sanitary napkin manufacturers to provide a reasonable adhesive strength of the quality.

Testing principle of adhesive strength of sanitary napkin back glue: 180 ° stripping method is used to apply a certain pressure to peel off the joint between the back glue of the sample and pure cotton sweat cloth, and the bonding strength is reflected by timing the time required for stripping a certain length.


Whiteness test of sanitary napkin  WSB-2

4. Whiteness test of sanitary napkins;

The so-called whiteness refers to the whiteness of sanitary napkins. Whiteness is one of the most important appearance and optical properties of paper, which has attracted the attention of paper industry, packaging industry and printing industry. However, there is no corresponding standard for whiteness of sanitary napkins Jinan Chenchi According to the paper whiteness test standard, the whiteness tester was developed WSB-2 It is suitable for measuring the whiteness of objects or powders with flat surface. It can accurately measure the whiteness value consistent with the visual sensitivity, expressed in percentage.

According to the national standard of sanitary products, the whiteness should not exceed 90%. In general, the whiteness is more than 90%. Fluorescent whitening agent will be added to many sanitary products in the production process. Therefore, in the purchase of sanitary products to choose moderate whiteness products, experts call it natural color.


Fluorescent substance tester for sanitary napkin

5. Testing of fluorescent substances in sanitary napkins;

    Jinan Chenchi Developed dark box ultraviolet analyzer ZF -The equipment can also be used to test various kinds of paper, paint and plastic materials. Three use black box structure. Filter 95% of the UV light to avoid harm to human body.


Dust meter  ZCA-1

6. Dust test of sanitary napkins;

In the production process of sanitary napkin, if waste paper or waste pulp containing printed matter is used, the surface of sanitary napkin will have black and non black spots different from the original color, which will cause harm to human body Jinan Chenchi According to GB 20810-2006 "toilet paper (including toilet paper base paper)", a dust tester was developed ZCA-1 It is widely used in paper-making enterprises, quality inspection institutions, press and publishing institutions.

The principle of dust measurement of sanitary napkin: the number of dust with a certain area on the paper or sanitary napkin per square meter area or the equivalent area of dust on the paper or sanitary napkin per square meter area indicates the dust degree.

The above is Jinan Chenchi The brief introduction of sanitary napkin quality testing instruments summarized by Instrument Co., Ltd. shows that there are relevant national standards for sanitary napkin permeability test and sanitary napkin water absorption rate test, among which whiteness, fluorescent substances, adhesive strength and softness are not clearly specified in relevant standards Jinan Chenchi Instrument Co., Ltd These devices can help manufacturers to provide a reasonable internal control data. Sanitary napkin quality testing equipment Sanitary napkin quality testing equipment Sanitary napkin quality testing equipment Sanitary napkin quality testing equipment Sanitary napkin quality testing equipment