FORD FLTM BN 108-3-2004 RESISTANCE TO PILLING.pdf

1、 FORD LABORATORY TEST METHODBN 108-03Date Action Revisions 2004 11 23 Revised Rev Apparatus Required para, Brush added 5 to Procedure para; and pictures added to page 3 M. Dumitrescu 2001 09 11 Revised Editorial no technical change A. Cockman 1996 10 30 Printed copies are uncontrolled Copyright 2004

2、, Ford Global Technologies, LLC Page 1 of 3 RESISTANCE TO PILLING Application This method is used to assess the resistance of textile fabrics to pilling. Pilling is the formation of bunches or balls of tangled fibers on the surface of the fabric. Apparatus Required Brush and Sponge Pilling Tester -

3、Model no. CS-53 Note: This apparatus provides means for holding a test specimen while it is uniformly brushed with a board incorporating rows of bristles and then with another board which incorporates dry cellulose sponges. Velcro tape Hook 70 is another abrasive material to test the resistance of t

4、extile fabrics to piling/fraying. Brush and Sponge Maintenance Source: Standard Scientific Supply Company 601 W. Market Street Bethlehem, PA 18018-5208 USA Phone: (610) 868-2500 Fax: (610) 868-4925 During day to day operation of the tester the brushes and sponges must be examined by the procedure de

5、tailed in the Manufacturers installation instructions. Brush and sponge surfaces must be kept as flat and clean as possible at all times. Occasionally it will be necessary to replace sponges that have been sawed to the minimum sponge thickness of 12 mm. Velcro Tape Hook 70 Source: Velcro Inc. The e

6、quipment should be standardized using a test fabric specified by the responsible Materials Engineering activity. A. Replacing Sponges 1. Remove the softener from new sponges by soaking them in hot running tap water and squeezing out the excess water. Repeat this five times and then allow the sponges

7、 to dry thoroughly. FORD LABORATORY TEST METHODBN 108-03Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 2 of 3 2. Saw one side flat and fasten this flat side to the sponge board with rubber cement. Place the sponges on the sponge board so that the center of each sp

8、onge rotates about an imaginary line drawn between the two positioning pins over which the specimen holders are placed. 3. Resurface the sponge as detailed by the Manufacturer of the pilling equipment. B. Replacing Brushes After prolonged use the shape of the surface presented by the bristle rows of

9、 the brush may change. The bristles may form a narrow peak in the center of the row, allowing the sample to ride on this peak, which reduces the effectiveness of the brush. This can be detected by a downward trend of the pilling propensity of the standard fabric, as well as visually. Install new bru

10、shes when this occurs as detailed in the Manufacturers instructions. Before new brushes are used they must be sanded to smooth out any irregular bristle tips. 1. Mount flint paper (mesh No. 320 paper) on each specimen holder (for sanding the brushes) just as though it were to be pill tested. 2. Plac

11、e the brush board in position. 3. Place each specimen holder in position so that the sandpaper makes firm contact with the brush surface. 4. Operate the tester for at least 24 hours to smooth the bristle tips. Conditioning and Test Conditions All test values indicated herein are based on material co

12、nditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5% relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. Procedure 1. Cut a 250 mm x 250 mm size test specimen from the sample fabric with the cut parallel to the weft o

13、r warp yarns. 2. To avoid formation of folds or wrinkles and/or the slipping of the specimen during the test, it shall be held in the specimen holder under adequate tension. 3. Abrade the test specimen for 10 minutes with the brush board. 4. Abrade the test specimen for a further 10 minutes with the

14、 board incorporating dry sponges. 5. Abrade the test specimen for 5 seconds (5 cycles) with Velcro tape Hook 70 applied over the sponge as it is shown on the attached pictures. FORD LABORATORY TEST METHODBN 108-03Printed copies are uncontrolled Copyright 2004, Ford Global Technologies, LLC Page 3 of

15、 3 Evaluation Assess these results by comparing with the Master Sample approved by the responsible Materials Engineering Activity. Chemicals, materials, parts, and equipment referenced in this document must be used and handled properly. Each party is responsible for determining proper use and handling in its facilities.