Moisture resistant microbial penetration tester

1. Scope of application

It is used for rubbing cotton, chemical fiber, blended fabric and leather with dry/wet white cotton cloth respectively. Then the color discoloration of the sample and the coloration of white cotton cloth are evaluated with colored grey card, so as to obtain the dry/wet friction resistance of the fabric.

Two, meet the standards

ISO105X12 AATCC8 AATCC165 JIS L0849

Three, the main technical parameters

Setting range of reciprocating times: electronic preset counter, arbitrarily set 1 ~ 9999

2. Friction head pressure: 9N

3. Type of friction head: rectangular head for pile fabrics and circular head for other textiles

4. AATCC and ISO standards use different rubbed white cotton cloth

5, the friction head size: 19 x 25 mm rectangular or circular Φ 16 mm

6. Size of friction cloth: 50mm*50mm for circular friction head, 25mm *100mm for rectangular friction head

7. Sample size: 50*140mm

8. Reciprocating friction speed: 60 times /min

9. Friction type: electric friction

10. Reciprocating stroke: GB: 100mm AATCC: 104mm

11. Motor power: 40W

Dimensions: 780×290×260mm

13 instrument dead weight: about 20Kg

Four, instrument characteristics

Adopt automobile grade high quality metal baking paint, beautiful and not easy to scratch the surface.

The process design is reasonable, the detail processing is meticulous.

Stable performance, smooth operation, more accurate test results.

Five, the operation steps

1.

Sample preparation

1.1 The sample and the standard friction small white cloth shall be humidified in a constant temperature and humidity environment.

1.2 When the sample has multiple colors, all colors shall be rubbed.

1.3 Separate samples shall be taken if the areas of each color are large enough.

1.4 Cut the sample and do dry friction and wet friction respectively. All colors shall be ensured to be rubbed.

1.5 If the front and the back of the sample are made of different materials and colors, the front and the back should be tested for color fastness to rubbing.

1.6 Dry and wet rubbing fastness shall not be repeated in the same part of the sample.

2.

Dry friction

2.1 Place the sample flat on the abrasive tester covered with sandpaper, make the length direction of the sample consistent with the moving direction of the instrument, fix the sample on the pressing plate, and the clamping sample shall be flat.

2.2 Fix the standard friction small white cloth on the friction head, clamp it with the spring clamp, and gently put the friction head on the sample;

2.3 The sample shall not slip or wrinkle during friction;

2.4 The motor shakes the friction arm 10 times at a rate of once per second, making the arm grind back and forth 20 times;

2.5 Remove the standard friction small white cloth and grade it.

3.

Wet friction

3.1 Wet the standard abrasive white cloth completely in distilled water;

3.2 After taking out, squeeze the filter paper to make it have a certain moisture content;

3.3 The remaining steps shall be in accordance with the above dry friction steps;

4.

The result processing

4.1 Before rating, gently rub the loose fluff off the white cloth with transparent adhesive.

4.2 Apply three layers of unused friction white cloth under the friction white cloth to be evaluated, and evaluate the color grade of small friction white cloth by referring to the standard color gray card.

5.

The test report

5.1 Reporting Standard methods

5.2 Report dry friction and wet friction results respectively.

5.3 If the sample has been pre-treated or post-treated, report the treatment method.

Vi. Maintenance and maintenance

1.

Lubricating oil should be applied to the connection of transmission mechanism to ensure smooth rotation of transmission mechanism.

2.

Grease the stainless steel groove on one side of the base with a lubricant such as butter.

3.

The counter is located on the upper part of the instrument, which is easy to be damaged.

4.

The stainless steel grooves and stainless steel plates on the base are all sticked, the inspection results are firm and reliable before delivery.

Operators should pay attention when they are still likely to be struck by heavy objects or levered by sharp objects and fall off.

5.

The friction head is plastic product, which has been polished before leaving the factory. There is no gap between the friction head and the stainless steel plate.

The friction head should not be used to rub directly with sandpaper, which is easy to make the friction head wear and no longer smooth, and there is a large gap with the steel plate, so that the sample will be subjected to uneven pressure, which will affect the test results