FZ/T 52003-2014Polypropylene staple fiber (English PDF)

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules.

Instead of the standard FZ/T 52003-1993 "polypropylene staple fiber", compared with the original standard, in addition to editorial changes, the major technological change as follows.

--- Scope of the density of the product line by 1.70dtex ~ 22.20dtex extended to 1.67dtex ~ 120.00dtex (see Chapter 1, Chapter 1 of the 1993 edition);

--- Grade products from the original class product, first-class product, second product, third-class products, less than third-class product is substandard products, read. superior products, a and other products, qualified three levels below the qualified product is substandard product (see Chapter 5, Section 4 of the 1993 edition);

--- Spinning fiber breaking strength coefficient of variation, long fiber and oil content index adjustment (see Table 1, 1993 edition of the Table 1);

--- Spinning fiber elongation at break of indicators to control positive and negative deviations (see Table 1, 1993 edition of the Table 1);

--- The nonwoven increased > 22.20dtex ~ 50.00dtex, > 50.00dtex ~ 120.00dtex two tranches indicators (see Table 2, 1993 edition of the Table 2);

--- The nonwoven increased breaking strength coefficient of variation, number of crimps, crimp rate index (Table 2, 1993 edition of the Table 2).

The standard proposed by China Textile Industry Association.

This standard by the Shanghai textile industry technical supervision of the centralized.

This standard was drafted. Bo Tao synthetic fiber Hubei Co., Ltd., China Chemical Fiber Industry Association, the Shanghai textile industry technical supervision.

1 Scope

This standard specifies the terms and definitions of polypropylene staple fibers, classification and identification, technical requirements, test methods, inspection rules and signs, packaging, Transportation, storage and other requirements.

This standard applies to spinning and non-woven polypropylene staple fiber length of 20mm or more, spinning line density 1.67dtex ~ 7.80dtex, Nonwoven linear density 1.67dtex ~ 120.00dtex of polypropylene staple fibers. Other types of polypropylene staple fiber can refer to use.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document.

GB/T 3291.1 textile material properties and test - Part 1. fibers and yarns GB/T 3291.3 textile material properties and test - Part 3. General GB/T 4146.1 Textiles chemical fiber - Part 1. generic name GB/T 4146.3 Textiles chemical fiber - Part 3. Testing Terminology GB/T 6503 Test Methods for chemical fiber moisture regain GB/T 6504 Test method for chemical fiber oil content GB/T 8170 repair value expressed about the rules and limit values and judgment GB/T 14334 chemical fiber staple sampling method GB/T 14335 chemical fiber staple linear density test method GB/T 14336 chemical fiber staple length of the test method GB/T 14337 chemical fiber short fiber tensile properties GB/T 14338 chemical fiber staple crimp performance test method GB/T 14339 chemical fiber staple defect test method GB/T 14342 synthetic staple fiber than the resistance test method

3 Terms and Definitions

GB/T 3291.1, GB/T 3291.3, terms and definitions GB/T 4146.1 and GB/T 4146.3 defined apply to this document.

4 Classification and labeling

5 Technical requirements

12 Oil content /% M4e ± 0.10 M4e ± 0.20 M4e ± 0.10 M4e ± 0.20

aM1 centered values elongation at break, in particular by the manufacturer in consultation with the client, it can not be arbitrarily changed once determined.

bM2 for the number of crimps central value between 12.0 to 15.0, in particular by the manufacturer and determined in consultation with the client, can not be arbitrarily changed once determined.

cM3 crimped central value between 11.0 to 14.0, in particular by the manufacturer and determined in consultation with the client, it can not be arbitrarily changed once determined.

dk than resistivity, 1.0<=k 7.80dtex ~ 22.20dtex Premium grade First grade Qualified Excellence in goods First grade Qualified 1 linear density deviation rate /% ± 5.0 ± 10.0 ± 15.0 ± 5.0 ± 10.0 ± 15.0 2 breaking strength/(cN/dtex) >= 3.50 3.00 2.50 3.00 2.70 2.50

3 Elongation at break /% M1a ± 15.0 M1a ± 25.0 M1a ± 35.0 M1a ± 20.0 M1a ± 30.0 M1a ± 40.0 TABLE 2 (cont.) no. Item 1.67dtex ~ 7.80dtex > 7.80dtex ~ 22.20dtex Premium grade First grade Qualified Excellence in goods First grade Qualified 4 breaking strength variation coefficient /% <= 10.0 12.0 14.0 10.0 12.0 14.0 5 length deviation rate /% ± 5.0 ± 8.0 ± 10.0 ± 5.0 ± 8.0 ± 10.0

6 Defect content/(mg/100g) <= 10.0 50.0 75.0 50.0 100.0 150.0 7 times longer fiber content/(mg/100g) <= 20.0 40.0 60.0 20.0 50.0 75.0 8 number of crimps/(a / 25mm) M2b ± 2.5 M2b ± 3.0 M2b ± 3.5 M2b ± 2.5 M2b ± 3.0 M2b ± 3.5 9 crimp ratio /% M3c ± 2.5 M3c ± 3.0 M3c ± 3.5 M3c ± 2.5 M3c ± 3.0 M3c ± 3.5 10 specific resistance/(ohm · cm) <= kd × 107 kd × 109 kd × 109 kd × 108 kd × 109 kd × 109 no. Item > 22.20dtex ~ 50.00dtex > 50.00dtex ~ 120.00dtex Premium grade First grade Qualified Excellence in goods First grade Qualified 1 linear density deviation rate /% ± 5.0 ± 10.0 ± 15.0 ± 5.0 ± 10.0 ± 15.0 2 breaking strength/(cN/dtex) >= 2.5 2.3 2.0 2.3 2.0 1.7

3 Elongation at break /% M1a ± 20.0 M1a ± 30.0 M1a ± 40.0 M1a ± 20.0 M1a ± 30.0 M1a ± 40.0 4 breaking strength variation coefficient /% <= 10.0 12.0 14.0 12.0 15.0 18.0 5 length deviation rate /% ± 5.0 ± 8.0 ± 10.0 ± 5.0 ± 8.0 ± 10.0

6 Defect content/(mg/100g) <= 50.0 100.0 150.0 75.0 125.0 175.0 7 times longer fiber content/(mg/100g) <= 20.0 50.0 75.0 35.0 75.0 100.0 8 number of crimps/(a / 25mm) M2b ± 2.5 M2b ± 3.0 M2b ± 3.5 M2b ± 2.5 M2b ± 3.0 M2b ± 3.5 9 crimp ratio /% M3c ± 2.5 M3c ± 3.0 M3c ± 3.5 M3c ± 2.5 M3c ± 3.0 M3c ± 3.5 10 specific resistance/(ohm · cm) <= kd × 107 kd × 109 kd × 109 kd × 108 kd × 109 kd × 109

NOTE. breaking strength, elongation at break with special requirements, negotiated by both parties.

aM1 centered values elongation at break, in particular by the manufacturer in consultation with the client, it can not be arbitrarily changed once determined.

bM2 value for the number of crimps centers, specifically by the manufacturer in consultation with the client, can not be arbitrarily changed once determined.

cM3 crimped central value, in particular by the manufacturer in consultation with the client, it can not be arbitrarily changed once determined.

dk than resistivity, 1.0<=k 6 Test methods

6.1 Tensile Properties Performed in GB/T 14337 regulations.

6.2 linear density deviation rate According to GB/T 14335 regulations.

6.3 length deviation rate, long fiber content, fiber content times longer Performed in GB/T 14336 regulations.

6.4 defect content

According to GB/T 14339 regulations.

6.5 Oil Content

Performed in GB/T 6504 regulations.

6.6 specific resistance According to GB/T 14342 regulations.

6.7 Regain

According to GB/T 6503 regulations.

7 Inspection rules

7.1 factory inspection

7.1.1 Test items

Table 1, Table 2 requires the items are test items, test methods in accordance with Chapter 6 of the inspection.

7.1.2 Batch provisions Within a certain range by the periodic sampling test batch composition. A production batch by batch testing a composition, but also by a number of inspection lots composition.

7.1.3 Sampling provisions Performance Project executed in each sampling method GB/T 14334 requirements.

7.1.4 Comprehensive Assessment Measured or calculated values of each property item by GB/T 8170 in comparison with the rounding value in Table 1, Table 2 Project performance indicators limits Comparison, assessment of each grade. To test each batch of the final performance of the project in terms of the lowest rank for a given product level.

7.2 reinspection rules

7.2.1 General

Batch of products to the consignee should be timely inspection lot number, size, number and manifest (or packaging identification) matches. Ship such as production when product quality objection (except moisture regain), within one month in goods to the manufacturers drew retest, but also in consultation with the third-party manufacturers to draw complex Inspection, re-inspection results to the final result, the deadline will not be accepted. If the batch has spent more than a third, may not apply for re-inspection. in case Due to quality problems caused during transportation or storage, the supply and demand sides should analyze the causes and define responsibilities, consultations. For the production of the factory plant Products a year, if in the course, due to the impact of the quality of the batch after processing product quality, and cause serious damage, the supply and demand double We shall analyze the causes and define responsibilities, consultations.

7.2.2 Test items

With the provisions of 7.1.1.

7.2.3 Batch provisions when reinspection original batch production batch groups.

7.2.4 Sampling provisions

7.2.4.1 Project performance test by GB/T 14334 regulations adopted package sampling methods, sampling. Italy can not be drawn in transit External moisture, pollution, abrasion or packaging of the package has been opened. Reinspection may be made when the production side, the use of joint sampling testing may also request legal Inspection agency arbitration.

7.2.4.2 times longer fiber content, the amount of sample defect content doubled.

7.2.5 retest assessment Press 7.1.4 assessment, higher than or equal to the original level to comply with the judgment, it is judged as lower than the original level does not meet. To retest data by referee According to the cost borne by the responsible party.

7.2.6 conventional mass Conventional mass is calculated according to equation (1) regulations.

m = m1 ×

1 R0

Where.

m --- batch package conventional mass, in kilograms (kg);

m1 --- batch package net mass, in kilograms (kg);

R0 --- polypropylene staple fiber moisture regain, R0 = 0%;

R --- Found moisture regain%.

When the difference reinspection every package quality (net or gross) and provision of quality should not exceed ± 5%, of the total package does not exceed the difference between the conventional mass 0.5%, no compensation, according to the actual difference between the compensation, except as otherwise agreed exceeded.

8 signs, packaging, transportation and storage 8.1 mark Product packaging is marked with product name, size, batch number, trademark, product standards, manufacturer's name and address, net weight, grade and product anti Protection, handling warning signs. Products Printed signs should not fade significantly prevent oil pollution color penetrate the fiber package.

8.2 Packaging

8.2.1 Packaging and packaging materials should ensure quality fibers from damage. Packaging integrity, no fiber exposed, tied with packing tape and solid.

8.2.2 different specifications, batch number, grade product should be packaged separately.

8.2.3 Each batch of products should be attached to the quality of Inspection.

8.3 Transport

Transportation should be taken to moisture, rain, sun, anti-fouling and other measures, gently, non-damaged packaging.

8.4 Storage

Products should be stacked batch storage, stored in a dry bath, clean warehouse, are not allowed to open dumps, not upside down during storage, avoid high, to protect the produce Product quality from damage.