FZ/T 52033-2014Polyethylene/polypropylene(PE/PP)whitening bicomponent composite staple fiber (English PDF)

4.1 Categories

Polyethylene/polypropylene (PE/PP) composite short fiber whitening nominal linear density, divided into three categories.

--- Linear density 1.33dtex ~ 5 Technical requirements

5.1 Product classification

Polyethylene/polypropylene (PE/PP) composite short fiber whitening products are divided into superior products, first-class products, qualified three levels below the qualified product as Substandard goods.

5.2 Performance Project

Performance of projects and indicators in Table 1.

5.3 Oil Content

The two sides negotiated by supply and demand.

5.4 Quality Difference

Deviation of the average rate of net mass and conventional mass of the package does not exceed ± 0.5%.

Deviation rate packages nominal net mass and conventional mass does not exceed ± 1%, non-fixed weight item reference use.

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6.1 Breaking strength, elongation at break

Breaking strength, elongation at break performed in GB/T 14337 regulations. Wherein the adjusted gauge length of 10mm, the tensile speed 40mm/min. Pre tension is (0.15 ± 0.03) cN/dtex.

6.2 Linear density deviation rate

According to GB/T 14335 regulations, which the fiber bundle in the middle weighing method to arbitration.

6.3 Length deviation rate, twice as long as the fiber content

Length deviation rate, twice as long as the fiber content according to GB/T 14336 regulations, which the fiber bundle in the middle weighing method to arbitration.

6.4 Defect content

According to GB/T 14339 regulations, wherein the method B (hand-picking method) for the arbitration method.

6.5 Crimp number, crimp rate

According to GB/T 14338 regulations.

6.6 Specific resistance

According to GB/T 14342 regulations.

6.7 Total number of bacterial colonies, the total number of fungal colonies

Execution according to GB 15979 requirements.

6.8 Whiteness

Press FZ/T 50013 regulations.

6.9 Oil Content

According to GB/T 6504 regulations, arbitration extraction method.

6.10 Determination of the quality difference

6.10.1 The batches of samples obtained net mass of the package according to GB/T 14334 regulations.

6.10.2 The laboratory sample obtained according to regain Found GB/T 6503 regulations.

6.10.3 computing N differences in the quality of a package formula see equation (1) to (4).

m1i

m = m1 ×

1 R0

m1-m

m × 100%

mA-m

m × 100%

Where.

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

m1i --- Net weight per package, in kilograms (kg);

N --- Number of packages;

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

R0 --- polyethylene/polypropylene (PE/PP) composite short fiber moisture regain whitening temporarily regain 0.20% instead of the standard;

R --- Found moisture regain,%;

A deviation of the average net rate quality --- package and the conventional mass,%;

B --- deviation rate package on behalf of the members of the net mass and conventional mass,%;

mA --- package nominal mass, in kilograms (kg).

7.1 Inspection Type

Inspection type into the type test and factory inspection.

When the following conditions shall be type tested.

Periodic inspection a) predetermined time;

b) When the production design, technology, raw material change, may affect product quality;

Results c) factory inspection are quite different when the last type inspection;

d) national inspection agency requirements for type testing.

7.2 Test Project

7.2.1 Eisai products in Table 1 are all type inspection items in Table 1, numbers 1 to 9 for the factory inspection items, according to the requirements of Table 1, and press the corresponding test methods specified in Chapter 6 test.

7.2.2 Non-Eisai product, numbers 1 to 9 for the factory inspection items, according to the requirements of Table 1, according to the provisions of Chapter 6 of the corresponding test methods test.

7.3 Batch rules

Within a certain range by the periodic sampling test batch composition. A production batch by batch or a test made up of several test batches composition.

7.4 Sampling provision

Sampling 7.4.1 Project performance according to GB/T 14334 in product sampling provisions.

7.4.2 The total number of bacterial colonies, the total number of fungal colonies product sampling by the sampling method specified in GB 15979 performed.

7.5 Comprehensive Assessment

Measured or calculated values compare the performance of the project according to GB/T 8170 in comparison with the rounding values in Table 1 limit itemized criteria, etc.

Level to the lowest level of quality indicators determine whether the product level.

7.6 Reinspection rules

7.6.1 General

Batch of products should be required to promptly check the packaging side of the package, the number, quality and invoices are consistent as a result of transportation, storage and other reasons Movies when the sound quality should be identified and responsibility, the responsibility of the responsible party. Batch of products to the consignee within three months, when the quality of products objections may be submitted for re-inspection.

If the number of the batch of products using more than a third, you should not apply for re-inspection. Reinspection can be any of the parties to agree, if necessary, Inspection agency may request arbitration in accordance with this standard requires sampling, testing, arbitration. Since the batch product quality affects the processed product quality, and cause Severe losses, both parties should analyze the causes and define responsibilities, consultations.

7.6.2 Reinspection program

With 7.2.

7.6.3 Retest sampling provisions

7.6.3.1 Project performance test by GB/T 14334 in the provisions of the package sampling methods sampling can not be drawn in transit by accident Tide, pollution, abrasion or packaging of the package has been opened.

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

7.6.4 Batch provisions

Original batch production batch groups, but the production date interval not more than 90 days by the same batch of product Batch.

7.6.5 Retest assessment

7.6.5.1 Press 7.5 rating, higher than or equal to the original level is judged as met, the penalty is less than the original level does not meet.

The average net rate deviation quality 7.6.5.2 package and conventional mass exceeds ± 0.5%, by both parties through consultation.

7.6.5.3 The package rate of deviation in the name of quality and conventional mass of more than ± 1%, by both parties through consultation.

8.1 Mark

Classification and nomenclature should be required to be marked on the package 8.1.1 product name, size, grade, batch number, net mass, date of production, trademarks, products Standard number, manufacturer name, address, and product protection, handling of the warning signs.

8.1.2 Products Printed signs should not fade significantly prevent oil pollution color penetrate the fiber package.

8.2 Packaging

8.2.1 Packaging Packaging should be kept intact, fiber is not exposed. Quality packaging should ensure that the packaging during transport and storage easily damaged.

8.2.2 different specifications, batch number, category, polyethylene/polypropylene (PE/PP) composite short fiber whitening should be packaged separately.

8.2.3 product packaging applications with plastic, steel or other packaged with a certain strength of the fastening strip.

8.2.4 Non-fixed weight per package quality products with the same batch basis weight differences in the name of the product quality should not exceed ± 5%.

8.3 Transport

Transportation and handling of products should be warning signs regulations, take appropriate precautions to prevent the product from moisture, sunlight, pollution and damage, Prohibited throw.

8.4 Storage

Package stacked in batches, stored in ventilated, dry, clean warehouse, not near the fire, heat and direct sunlight.