Critical Consumable Item List in Denim Industry

1. Vat Indigo dye
2. NaoH--> flake, lye
3. Na2SO4
4. Dispersing Agent
5. Wetting Agent
6. Potessium persulphate
7. Thin boiling Starch
8. PVA
9. Mutton Tallow- or equivalent
10. Acrylic Polymer
11. Hessian Cloth- a. 45"width, 10 oz./linear yard, b. 45"width, 14 oz. per linear yard
12. High Molecular high density polyethylene: 65" guage x 44 "width, 65" guage x 50" width
13. Spiral Built Paper a. 51mm ID x 60-60.5 mm OD x 60" long

Vendor Rating for Yarn Supplier for Denim

For 7s count

Evaluated at the end of 6 months

Weightage



Quality=50%,Price=30%,Delivery= 20%


I. Quality

CSP
>1900=4, 1800-1899=3, 1700-1799=2, 1600-1699=1, <1599=0>Count CV
0-2.5=2, >2.5=0,

Imperfections( /1000m)

a. Thin places
0-2=5, 3-10=2, >10=0

b. Thick Places
<10=5, 40="2,">40=0

c. Neps
0-2=5, 3-6=2, >6=0

Classimate Results

a. Analysis for total faults

<10=4, 30="2," 50="1,">50=0

b. Analysis for Objectionable Faults(A4, B4, C3, C4, D3, D4)

0-2=4, 3-4=2, >4 =0

Weightage in Quality

CSP=20%, Count CV=20%, Imperfections( Thin=10%, Thick=10%, Neps=10%), Classimate ( Total Faults=10%, Objectionable Faults=20%)

II. Delivery Schedule

100% Compliance=5, 90-99%=4, 80-89%=3, 70-79%=2, 60-69%==1, <60%=0

III. Prices

They are determined on a 5-point basis.

Total

>3.8--> Excellent, 3.0-3.8-->Good, 2.0-3.0-->Average, <2-->Poor

Vendor Evaluation for Cotton supplies for Denim

Vendors are evaluate quartly on the basis of the quality of material supplied while at the end of year, other parameters are also taken into consideration.



Quality Evaluation

The number of lots whose sample test reports show total conformance to the standard parameters of strength, micronaire and staple length will be determined, then a rating is given as:



A. % of accepted but non-conforming lots

Nil=5

<10%=4

10-15%=3

16-25%=2

26-35%=1

>35%=0



B. Non Conforming lots rejected

Nil= 5

<3%=4

3-5%=3

6-7%=2

8-10%=1

>10%=0



Sum Total will give the overall rating

Excellent-->10

Good-->8-9

Fair-->6-7

Poor-->2-5

V. poor--> <2

Annual Evaluation Procedure

1. Quality-->60% weightage

2. Delivery --> 15% weightage

3. Price-->10%

4. Service-->15%

1. Quality with respect to Standard Parameters

A. % of lots above

0-10=1, 10-20=2, 20-30=3, >30=4

B. % of lots adhering

0-25=1, 25-50=2, 50-60=3, 60-70=4, 70-80=5, 80-90=6, >90=7

C. % of Lots below

0-10=1, 10-20=2, 20-30=3, >30=4

Total Score= A+B-C

2. Delivery Schedule

100% compliance-->5, 90-99%-->4, 80-89%-->3, 70-79%-->2, 60-69%-->1, <60%=>

3. Price: 1-5 scale basis

4. Service: 5 point scale

Overall rating

Excellent=6.4-7.4, Good=4.4-6.3, Average= 3.4-4.3, Poor= 7.4-3.3, V. Poor= <2.3

Dyeing of polyester with indigo

Please see the following link for dyeing of polyester with indigo.