Polypropylene Staple Fiber

 

 

Molecule structure:

-[-CH 2—CH-] -n

|

CH3

 

Process: The product is manufactured from polypropylene resin by spinning, stretching , crimping, relaxation thermal-setting, cutting and baling process.

 

Physical properties: The product has the properties of excellent moisture transmission and fast-drying feature, good carding, and fuzz-proof. It is suitable for the production of soft and tenacious fabrics, light in weight, warmth retention, silky handle and comfortable.

 

Grade: (1.67 - 7.78)dtex X (40 - 102)mm

 

Standard: FZ/T52003-93 Industry Standard

 

Table 1. 1.7-3.3dtex Polypropylene Staple Fiber Quality Specifications:

No.

Items

Unit

Premium-grade

1st-grade

2nd-grade

3rd-grade

Test method

1

Linear density deviation

(+)

%

3.0

8.0

8.0

10.0

GB/T14335-93

2

Breaking tenacity ≥

CN/dtex

4.0

3.5

3.2

2.9

GB/T14337-93

3

Breaking elongation≤

%

60.0

70.0

80.0

90.0

GB/T14337-93

4

Number of crimps

No./25mm

M1+2.5

M1+3.0

M1+3.5

M1+4.0

GB/T14338-93

5

Defect≤

Mg/100g

5.0

20.0

40.0

60.0

GB/T14339-93

6

Over-cut fiber≤

Mg/100g

5.0

20.0

40.0

60.0

GB/T14336-93

7

Over length≤

%

0.5

10

2.0

3.0

GB/T14336-93

8

Percentage of crimps

%

M2+2.5

M2+3.0

M2+3.5

M2+4.0

GB/T14338-93

9

Specific resistance≤

Ωcm

 

 

 

 

GB/T14342-93

10

Oil content

%

M +0.10

--

--

--

GB/T14340-93

11

Coefficient of variation of breaking tenacity≤

%

10.0

--

--

--

GB/T14337-93

12

Length deviation +

%

3.0

5.0

7.0

9.0

GB/T14336-93

 

Table 2. 3.4-7.8detx Polypropylene Staple Fiber Quality Specifications:

No.

Items

Unit

Premume-grade

1st -grade

2 nd-grade

3 rd-grade

Test-method

1.

Linear density deviation _

%

4.0

8.0

10.0

12.0

GB/T14335-93

2.

Breaking tenacity ≥

CN/dtex

3.5

3.0

2.7

2.4

GB/T14337-93

3.

Breaking elongation≤

%

70.0

80.0

90.0

100.0

GB/T14337-93

4.

Number of crimps

No./25mm

M1 +2.5

M1 +3.0

M1 +4.0

M 1+4.0

GB/T14338-93

5.

defect≤

Mg/100g

5.0

25.0

50.0

70.0

GB/T14339-93

6.

Over -cut fiber≤

Mg/100g

5.0

20.0

40.0

60.0

GB/T14336-93

7.

Over length≤

%

--

--

--

--

 

8.

Percentage of crimps

%

M2 +2.5

M 2+3.0

M2 +4.0

M 2+4.0

GB/T14338-93

9.

Specific resistance≤

Ωcm

K x 108

K x 109

K x 109

K x 109

GB/T14342-93

10.

Length deviation +

%

--

--

--

--

 

11.

Oil content

%

M 3+0.10

--

--

--

GB/T14340-93

 

Remark:

  1. M1 is the central Value of crimps. It is selected within the scope of 12 - 15.
  2. M2 is the central value of percentage of crimps. It is selected within the scope of 11-14.
  3. M3 is the central value of oil content. It is determined by the manufacturer and should not be lower than 0.3%.
  4. K is the coefficient of specific resistant.

 

Major application:

It is used for the production of pure polypropylene fiber fabrics, knitted underclothes, sports wear, and also T-shirts, towels, stock, base cloth for flannelette, filter cloth and industrial textiles, and canvas work clothes by blend spinning with cotton and other fiber.

 

Packing:

205-235 kg net each in PP woven bag coated with plastic.

Dimension: 1150mm x 720mm x 880mm

 

Storage:

Stored in dry , cool, ventilated warehouse equipped with fire-fighting facilities and free from moisture and direct sunshine.

 

Safe Handling and Precautions:

  1. keep away from fire and heat source.
  2. Can not be transported or stored together with chemicals such as oil, acids and alkali etc.
  3. Handle gently to avoid damages to goods and people during loading and unloading. Prevent damages to baling strips during hoisting.

 

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