Classification    

                    Code Name                          

Normal shoe lining leather( including the PU Pearl leather)

                           L1                            

Bronzing shoe lining leather

L2

Single-sided scratch Simi-finished

B1

Impregnation scratch Simi-finished

B2

Name

Thickness(mm)

Width(mm)

Length(m)

Specification

Deviation

Max Size

Deviation

Length

Deviation

Normal shoe lining leather

0.6-1.0

± 0.05

≤1500

±20

≤500

The negative deviation is prohibited

Bronzing shoe lining leather

Single-sided scratch Simi-finished

Impregnation scratch Simi-finished

Item No.

Item

                        Indicators                    

I

II

Substandard goods

1

Chromatic Aberration

unobvious

unobvious

obvious

2

Flaw

No ≥0.05m2 sundries

No  ≥0.05m2 sundries within per 10m2            

3

Lengthwise Wrinkle

unobvious

A little obvious

A little obvious

4

Smoothness

smooth

Slight unsmooth

Slight unsmooth

Item No.

Test items

                                Indicators                    

L1, L2

B1, B2

1

Tensile Load(N/cm)

Warp and weft

≥40

≥50

2

Elongation (%)

Warp and weft

≥15

≥15

3

Tear Load (N/cm)

Warp and weft

≥16

≥16

4

Peel Load(N/25mm)

Warp and weft

≥10

≥13

5

Surface Color Fastness(Grade)

(Dry Friction)

≥4

6

Heat-resistant adhesiveness (Grade)

≥4