FZ/T 54071-2014Polyamide 6 monofilament (English PDF)

Foreword

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

The standard proposed by China Textile Industry Association.

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

This standard was drafted. Shaoxing Zhong Chemical Fiber Co., Nantong Dili grams of Textile Chemical Fiber Co., Jiangsu Du Advanced Materials Co. has Limited, Shanghai textile industry technical supervision.

1 Scope

This standard specifies the terms and definitions monofilament nylon 6, classification and identification, technical requirements, test methods, inspection rules and signs, packaging, Transportation and storage requirements.

This standard applies to a linear density of 5.50dtex ~ 230000.00dtex, corresponding to the equivalent filament diameter of 0.024mm ~ 5.036mm, Circular cross-section profiled, bright, semi dull, dull nylon 6 filament.

NOTE. Nylon 6 monofilament linear density and the corresponding equivalent in terms of the diameter of the monofilaments, refer to Appendix A.

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 250 textile color fastness test assessing change in color like the gray card GB/T 2828.1-2012 Sampling procedures for inspection - Part 1. by acceptance quality limit (AQL) retrieval batch test sample plan 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 6502 sampling method of chemical fiber filament GB/T 6503 Test Methods for chemical fiber moisture regain GB/T 6504 Test method for chemical fiber oil content GB/T 6505 chemical fiber filament heat shrinkage test method GB/T 8170 repair value expressed about the rules and limit values and judgment GB/T 14343 chemical fiber filament linear density test method GB/T 14344 chemical fiber filament tensile properties GB/T 14346 chemical fiber filament electronic evenness test method FZ/T 50002 Test method for chemical fiber shaped degree FZ/T 50008 nylon filament yarn dyeing uniformity test method FZ/T 51004 chips fiber grade polycaprolactam

3 Terms and Definitions

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

Monofilament equivalent diameter equivalentdiameterofmonofilament the same linear density filaments of circular cross-section corresponding to yarn diameter.

4 Classification and labeling

5 Technical requirements

6 Stretch yarn shortage is not allowed not allowed not allowed

7 Connectors/(a / barrel) <= 0 3 8

8 Cylinder weight d (net)/kg fixed weight or length - -

9 Filariasis length determined by the supply and demand sides negotiated

The length of a coil wire is not more than 10mm.

b oil silk, first-class product allowing only a pale yellow oil, its total area does not exceed 1cm2; qualified products only allows light yellow and darker oil, its total area is not More than 2cm2, black oil is not allowed.

c color reference GB/T 250 level set, of which the "normal" equivalent to 4, "slight" is equivalent to level 3.

d heavy barrel, negotiated by the supply and demand depending on the variety.

5.4 profiled shape and contour index the two sides negotiated by supply and demand.

6 Test methods

6.1 mechanical properties and dyeing performance test 6.1.1 linear density test According to GB/T 14343 regulations. Special coarse denier type, using a single method.

6.1.2 breaking strength and elongation test Performed in GB/T 14344 regulations. Heavy denier, especially coarse denier gauge length of 250mm, the movable gripper speed 250mm/min.

6.1.3 The boiling water shrinkage test According to GB/T 6505 regulations.

6.1.4 Dry heat shrinkage According to GB/T 6505 regulations. Temperature (150 ± 3) °C, the processing time (10 ± 1) min.

6.1.5 dyeing uniformity test Press FZ/T 50008 regulations.

6.1.6 evenness rate testing Performed in GB/T 14346 regulations. Sample length of a single test is not less than 400m, where arbitration is recommended 100m/min the test speed.

6.1.7 Oil Content Test Performed in GB/T 6504 regulations.

6.1.8 Alien Test

Press FZ/T 50002 regulations.

6.1.9 Regain Test

According to GB/T 6503 regulations.

6.1.10 titanium dioxide content Press FZ/T 51004 regulations.

6.2 Visual inspection Appearance-wise classification index test tube stage performed using light 40WD65 standard light source or dual 40W fluorescent tubes, illumination requirements About 600lx, viewing distance of about 30cm. When grading, the operator of the wire tube inserted into the spindle pole station, identified one begins to rotate, according to Table 2 Seeking both bevel and cylindrical surfaces of each permit visual verification cheese etc; with a suitable range of weighing scales, electronic weighing scales and other weighing package quality the amount deducted from a known skin quality, is the net weight of the cylinder, accurate to 0.5%, and recorded.

Taiwan classification. black mesa, height 75cm ~ 80cm, mounted above the two parallel 40WD65 standard light or 40W fluorescent tubes double, Surroundings should be no other scattered light and reflected light.

7 Inspection rules

7.1 Test Project

Table 1 items are assessment project, according to the test method specified in 6.1 for testing. Visual inspection items according to the technical requirements in Table 2

Regulations, according to the test method specified in 6.2 for testing.

7.2 Group granted by the each batch of products should be raw materials, the same process conditions and product specifications, product specifications on the same principle of continuous extension table model into production Batch. 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 tests Batch composition.

7.3 sampling provision

7.3.1 Physical and laboratory samples dyeing Project performance test according to GB/T 6502 provisions sampling, dyeing uniformity test by sampling tube dyeing.

7.3.2 visual inspection full inspection.

7.4 determine the rules Measured or calculated values in Table 1 Performance 7.4.1 Project/T 8170 in the rounding value comparison method compared with the limit values according to indicators in Table 1 GB, One by one rating. Wherein staining uniformity is poor according to all samples of cheese (including fringe shades within the same period of the Garter) according to GB/T 250 Rating.

7.4.2 Visual inspection project assessment by the barrel.

7.4.3 Evaluation comprehensive product level, to examine batch performance and appearance of the indicators in the lowest grade given for the product level.

7.5 reinspection rules

7.5.1 General

Batch of products to the consignee within three months, as the acceptance or objection to draw quality reinspection. If you use a third of the batch of products when a more, shall not apply for re-inspection. However, if the consignee can produce relevant evidence that quality does affect the batch processed products the amount, and when causing serious damage, should analyze the causes and define responsibilities of both parties, consultations.

7.5.2 Test items

With 7.1.

7.5.3 Batch provisions Original batch production batch groups, but the difference between the production date intervals over 90 days according to the same batch of product can not Batch.

7.5.4 Sampling provisions Physical and laboratory samples 7.5.4.1 dyeing performance of the project sampling by GB/T 6502 regulations.

7.5.4.2 Look for sampling. Determine the sample size according to the batch test level II general provisions according to GB/T 2828.1-2012 Table 1 (Word).

7.5.5 Evaluation of test results Measured or calculated values 7.5.5.1 Physical and dyeing performance of the project according to GB/T 8170 in comparison with the value rounding Table 1 Physical and dyeing Limit values performance comparison rating. Wherein staining uniformity is poor according to all samples of cheese (including the same period of deep garter Pale stripes) according to GB/T 250 rating.

7.5.5.2 7.5.4.2 Appearance items by sample size, the receiver according to GB/T 2828.1-2012 Table 2-A normal inspection single sampling scheme Quality limit (AQL) 4.0, determine the acceptance number Ac and failed to determine the number Re, according to Table 2 requires assessment when the number of defective package <=Ac original level when, when the number of package failed >=Re, the penalty for non-compliance with the original rating.

Comprehensive Assessment 7.5.5.3 product level, according to 7.4.3 assessment, higher than or equal to the original level to comply with the judgment, lower than the original level is judged as not meets the.

7.5.6 conventional mass acceptance Pub quality nylon 6 monofilament according to formula (1) acceptance.

m = m1 ×

1 R0

Where.

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

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

R0 --- nylon 6 monofilament moisture regain value of 4.5%;

R --- nylon monofilament 6 Found moisture regain%.

Found regain Press GB/T 6503 regulations measured. Conventional mass difference is not more than 0.5%, no compensation, more than the actual exceeded Partial compensation.

8 signs, packaging, transportation and storage 8.1 mark it shall be marked with the name and address, product name, size, grade, batch number, net weight, gross weight, package number, date of packaging, trademarks, standard carton Number and moisture, light up sign.

8.2 Packaging

8.2.1 Each wire tube should be plastic bag, according to the different varieties and specifications, batch number, grade were Packaging.

8.2.2 should be within the outer carton positioning device (positioning seat positioning plate or the like) is fixed at both ends of the bobbin wire tube, carton quality should ensure product quality Amount from damage.

8.2.3 wire tube size of each package within the requirements as uniform as possible.

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

8.3 Transport

Transportation forbidden to damage outside the box, and do not invert and moisture.

8.4 Storage

Batches stacked, stored in a dry, clean, ventilated, dark warehouse.

Appendix A

(Informative)

Nylon 6 monofilament line density and the corresponding equivalent diameter monofilament conversion A.1 equivalent diameter monofilament According to the linear density equivalent diameter monofilament theoretical value calculated according to the formula (A.1) Calculated.

ED = Tlpi × T × 104 × 2 (A.1) where.

ED --- equivalent filament diameter in millimeters (mm);

Tl --- monofilament linear density value, in decitex (dtex);

T --- monofilament density, in units of grams per cubic centimeter (g/cm3).

A.2 equivalent diameter monofilament nylon 6 Known nylon 6 monofilament linear density coefficient can be derived with reference to the average density of nylon 6 of 1.15g/cm3, according to equation (A.2) in terms Corresponding to the equivalent diameter monofilament.

EDP = 0.0105 TPl (A.2) where.

EDP --- monofilament nylon 6 monofilament correspond equivalent diameter in millimeters (mm);

Linear density TPl --- nylon monofilament, the unit is dtex (dtex);

The average density of 0.0105 --- reference nylon 6 1.15g/cm3 derived coefficients, in millimeters per square minute special first-half (Mm/dtex1/2).