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1. (WO2007001880) METHOD OF GRADING MICROFIBER CLEANING CLOTHS
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CLAIMS

What is claimed is:

1. A method of grading a microfiber cleaning cloth, comprising:
determining a basis weight of the microfiber cleaning cloth;
assigning the microfiber cleaning cloth a heavy-duty grade if said basis weight is greater than 400 g/m2;
assigning the microfiber cleaning cloth a medium-duty grade if said basis weight is between about 300 to 400 g/m2; and
assigning the microfiber cleaning cloth a light-duty grade if said basis weight is less than about 300 g/m2.

2. The method as in claim 1 , wherein the microfiber cleaning cloth is assigned said heavy-duty grade if said basis weight is between about 400 to 450 g/m2.

3. The method as in ciaim 1 , wherein the microfiber cleaning cioth is assigned said heavy-duty grade if said basis weight is between about 420 to 435 g/m2.

4. The method as in claim 1 , wherein the microfiber cleaning cloth is assigned said medium-duty grade if said basis weight is between about 320 to 350 g/m2.

5. The method as in claim 1 , wherein the microfiber cleaning cloth is assigned said light-duty grade if said basis weight is between about 250 to 290 g/m2.

6. The method as in claim 1 , wherein the microfiber cleaning cloth is assigned said light-duty grade if said basis weight is between about 265 to 275 g/m2.

7. The method as in claim 1 , further comprising:
determining a color of the microfiber cleaning cloth; and
using the microfiber cleaning cloth for a particular job based on said color and grade.

8. A method of grading a microfiber cleaning cloth, comprising:
determining a durability of the microfiber cleaning cloth;
determining a washability of the microfiber cleaning cloth;
determining an absorbency of the microfiber cleaning cloth;
determining an abrasiveness of the microfiber cleaning cloth; and
assigning a cloth grade to the microfiber cleaning cloth based only on said durability, washability, absorbency, and abrasiveness.

9. The method as in ciaim 8, wherein assigning said cioth grade comprises:
assigning a heavy-duty grade if said durability is over about 4,000 number of wear cycles, said washability is over about 1 ,500 number of wash cycles, said absorbency is over about 1 ,700 ml/m2, and said abrasiveness is over about 38; assigning a medium-duty grade if said durability is between about 1 ,000 and 1 ,500 wash cycles, the absorbency is between about 1 ,400 ml/m2 and 1 ,700 ml/m2, the abrasiveness is between about 36 and 38.
assigning a light-duty grade if said durability is less than about 500 and 2,000 wear cycles, the washability is between about 500 and 1 ,000 wash cycles, the absorbency is between about 1 ,100 ml/m2 and 1 ,400 ml/m2, the abrasiveness is between about 34 and 36.

10. The method as in claim 9, further comprising:
determining a color of the microfiber cleaning cloth; and
using the microfiber cleaning cloth for a particular job based on said color and grade.