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TEST METHODS: >> Standard Method of Laundering

STANDARD METHOD OF LAUNDERING--REVISED JULY 2005

 

I. PURPOSE

The procedure is to be used as a standard method of laundering the UFAC Standard Type I mattress ticking fabric prior to its use in the UFAC Filling/Padding Test Method--1990 and Interior Fabric Test Method--1990.

 

II. APPARATUS AND MATERIALS

1. Automatic washing machine.

2. Automatic dryer.

3. AATCC Standard Reference Detergent.

 

III. PROCEDURE

1. Cut three pieces of UFAC Standard Type I mattress ticking fabric 1448 mm (57.0 in) in length by the width of fabric in the roll. These will make up one washer load of approximately 4 pounds.

2. Use the full water level of the washer.

3. Set temperature to yield a water temperature of 49 3C. (120 5F.).

4. Place the three pieces of ticking in the washer. Add 90 g of 1993 AATCC Standard Reference Detergent. Set the washer for a 12 minute washing cycle on the NORMAL setting. Allow washing to proceed automatically through the final spin cycle.

5. Separate tangled pieces and place the washed load in the tumble dryer set at the NORMAL cycle and dry at the setting which generates exhaust temperatures that cycle from 60 to 71C. (140 to 160F.). Operate the dryer until the total load is dry. Continue tumbling for five minutes with the heat turned off (cool down cycle). Remove the load immediately after the machine stops.

 

IV. EQUIPMENT

1. A Kenmore automatic washer has been accepted as the standard machine. Source - Sears, Roebuck & Company. For model number and address of the nearest Commercial Sales Department, write AATCC, Box 12215, Research Triangle Park, NC 27709. Any other washer which is known to give comparable results may be used.

2. Washing machine conditions for NORMAL setting:

a. Normal agitator speed: 70 5 cycles/min.

b. Normal washing time: set at 12 minutes.

c. Spin speed: 500-510 rpm.

d. Final spin cycle: 4 minutes.

e. Rinse temperature: 41 3C (105 5F).

3. These conditions represent the actual speeds and time available on the selected Kenmore washer. Other equipment may be acceptable if it does not vary more than 5% in one or more of these settings.

4. A Kenmore electric dryer has been accepted as the standard. Source - Sears, Roebuck & Company. For the model number and address of the nearest Commercial Sales Department, write AATCC, Box 12215, Research Triangle Park, NC 27709. Any other dryer known to give comparable results may be used.

5. Dryer conditions:

a. Controlled exhaust temperature which cycles from 60 to 71 C (140 to 160F).

b. A cooling period while tumbling 5 minutes at the end of the drying cycle.

6. Source of AATCC Standard Reference Detergent: AATCC, Box 12215, Research Triangle Park, NC 27709.

7. These dimensions contain a shrinkage allowance designed to yield a finished size of 1219 x 1372 mm (48.0 x 54.0 in). This size will make 12 each of the 203 x 203 mm (8.0 x 8.0 in) and 305 x 305 mm (12.0 x 12.0 in) specimens required in the UFAC tests. Any size specimens may be washed, but the 4 pound wash load should be maintained.

 

IV. REVIEW

This test procedure is subject to review, modification, and improvement. Please submit any suggestions, in writing, to:

UFAC CENTRAL
BOX 2436
HIGH POINT, NC 27261

 

A list of commercial sources of standard test materials can be obtained from UFAC Central.

 


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