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QR-004-008A review: tab: Quality: Wang Rongyao

Internal products (plastic bags) testing standards - - XCS20100505

1, the purpose of:
In order to test the quality of personnel or the quality of departments in the production department and provide the basis to judge the standard argument: to prevent unqualified products into finished goods under the reverse process and failed to deliver to the customer: to allow customers to trust our product quality and satisfaction.

2, the use of:
This standard specifies all of the company's product testing standards. For feed procurement, outsourcing, blowing, printing, sealing, or voltage, manual, packaging, shipping and other phases of the test. Which the reference standard sampling schedule.

3, the test specification:
a: Inspector: corrected visual acuity requirements of 1.0 above, no color blindness, familiar with the product characteristics. Sampling plan to use sampling, and take the initiative timely processing abnormalities.
b: test procedures:
⑴ feed test: take materials to verify the contents of a single --- --- --- sample --- test --- to determine the record.
⑵ process inspection:: (first article inspection and inspection) to extract the sample to determine --- --- --- inspection records.
⑶ the ultimate test: a report to verify the contents of a single test --- ---- --- test sample to determine ---- ---- record.

4, Product Category:
⑴ by type: PE bags of bone (also known by any bag, zipper bag), PE-pockets, zipper bags, PE bags Quartet, organ bags.
⑵ divided by material: PE bags, PP bags, PO bags, OPP bags.
⑶ by the appearance of points: light body bags, printed bags.
⑷ divided by color and transparency: transparent, colored transparent, non-transparent.

5, Visual:
40W fluorescent products in the distance under 60CM to 120CM range, visual range from 20CM to 40CM, 60CM in the special part of the Department, and horizontal gaze angle 45 ° ± 15 ° to a visual inspection to determine time of 3 seconds . When necessary, samples with the limits (or lack of standards to cover the inconvenience when using the standard auxiliary test) for testing.

6, the test: (CR = 0)
Print or fade, static performance, sealing performance, the opening performance to meet the requirements, bone mouth opening and closing (5) is smooth, with or without dislocation, elastic is appropriate.

7, test;
1: check the number of tests (full review): the submission of all batches of the product or material to be tested without missing a test.
Applies to the following conditions:
① small quantities to test a simple and less expensive.
② product must be qualified.
③ If a small amount of product failure could lead to lethal effects of the product.
④ general samples to check.
2: sampling: products from a number of individuals taking part in all individuals tested, and based on sample version of the test results to determine whether the entire batch of products eligible activities, is a typical statistical inference work.
① applies to the following conditions: a, of the need for destructive testing product performance test:
                   
b, bulk too large to be fully tested.
C, a longer test time and costs.
D, charge a certain degree of non-performing many products exist.
② sampling of the relevant terms:
a, test batches: the same products together as a testing object: In general, a production batch is a test batch. A batch production process can be divided into several test batches, but a test batch can not contain more than one production batch and can not be freely combined inspection lot.
b, bulk: the number of units contained in the batch:
c, sample number? : Extracted from the batch number of products:
d, failed to determine the number of (RE): the rejection:
e, the number of qualified General Agreement (AC): that is, income received or charged, said:
f, acceptable quality level (AQL): In general, is the failure to receive product rate.
3: to determine the sampling plan (how to conduct sampling)
① General Agreement to determine the quality standards of the table below (section 10)
② Select the level of inspection: the general inspection level sub-Ⅰ, Ⅱ, Ⅲ,: special check horizontal S-1, S-2, S-3, S-4. Under normal circumstances, the use of the general level Ⅱ.
③ Select the acceptable quality level (AQL): AQL sampling plan is selected based primarily on the production side by side and use mutually agreed.
④ to determine the sample size code, the sample number.
⑤ Select the type of sampling plan: If a normal sampling plan, tightened sampling plan, sampling plan or reduction. (See note).
⑥ number look-up table to determine the eligibility of the General Agreement (AC) and the General Agreement on number of unqualified (RE).

8: acceptable quality level (AQL acceptance level):
The Company in accordance with international packaging industry practice and most of the customers quality requirements, quality standards comprising the Company qualified as CR = 0: MA = 1.0:
MI = 2.5. If the customer requires the AQL value with this standard is different from the standard in the examination subject to the customer.

9: to determine the baseline definition:
     
Serious shortcomings (CR): product (material) can not use, reach or influence product design and safety of human life.
     
The main drawback (MA): product (material) look bad, with a significant reduction in performance or can not achieve the desired purpose.
     
A minor defect (MI): product (material) look bad, but only affects the visual, does not affect the normal use of function.

10: test items and the list of adverse determination --- as shown below:
Test items and test item number to determine the adverse determination
               
CR MA MI
1.1: The use of plant material (PE material, tensile material), auxiliary materials (species or color toner, do static agents, printing ink, other additives such as water that day, etc.), accessories (such as zippers, hook), packaging materials (such as sealing tape, glue, masking tape, kraft paper, etc.) do not meet environmental requirements.
1.2: accessories or packaging materials do not meet specifications or customer requirements, impairing its functionality.
1.3: accessories (such as zippers, hooks, tape, rope, etc.) or the size of packaging materials do not meet customer specifications, but does not affect function.
1.4: the transparency of the materials used / haze does not meet customer requirements.
1.5: The deployment of the proportion of raw materials do not meet the requirements of the customer or the company.

2.1: Thickness: flat bags uneven. (Bone bags in the middle part of the bone under the subject). Poor father does not match with customer requirements. No customer requirements, tolerance does not match with the requirements of the Company. Thickness of blown wrong or does not match the thickness of bulk synthesis occurs.
2.2: Width: with customers or do not meet the requirements of the Company. Width Tolerance: does not match with customer requirements. No customer request does not match with the company requirements.
2.3: length / long on the inside / under the long bone / bone length: does not match with the requirements of the customer or company. Length L and tolerance does not match customer requirements. No customer request does not match with the company requirements. Distance from the bottom seal (flat bag): does not match with the requirements of the customer or company.
2.4: height (four bags) height error. Tolerance does not match with customer requirements.
2.5: Organ Size does or does not meet standards or tolerances.

3.1: fade (adhesion): "tape test" after the printing surface is stick out (see below).
3.2: fade (adhesion): part of the printing surface of a neat drop, affecting the pattern shape: fade (adhesion): print out sticky surface of multiple small, the impact pattern shape.
3.3: wrong printing: printing error patterns, text, color and location, and the model does not match, can not be used.
3.4: Printing bar codes: The code reader (barcode scanner) scan, can not be confirmed.
3.5: were missing: there were missing the whole bag (empty bags) or printed content is basically no, seriously incomplete. Were missing: a part of product design, printed without the text of the printing or printing defects, and a color of the Indian and not Indian.
3.6: Printing the wrong place.
Printing the contents of the two parts does not match the distance and model.
Shift: the contents of offset printing position of the original model, the overall impact of the printing effect.
Printing the contents of a model compared with the position deviation is greater than the customer or the company's requirements, but does not affect the overall effect of the printing.
3.7: sets bit bad: several patterns overlap printing, dyeing each other pollution-bit or not, affect the appearance.
3.8: Weight View: Text printed patterns overlap or double vision.
3.9: Flying ink: printing line or font than the customer to confirm a model to be rough.
3.10: for ink: Printing lines of the font to be rough than the customer to confirm Ying.
3.11: spend or print content network.
3.12: Non-printing parts of a point or ink stains, seriously affect the appearance. Non-printing parts of a small ink spots or stains, the appearance is not affected.
3.13: grin: The Indian places exposing the white. Pattern showing the main parts of the main white. Minor or major design patterns revealed minor parts white.

4.1: Static performance: static tester, the resistance value is not in 108-1010 range.
4.2: Opening performance: light twist with the thumb and index finger is difficult to open the bag, opened the bag after the white marks. Difficult to open the bag, or simply can not be opened.
4.3: sealing performance: feed side, broken. Hand-pull seal lines split. (See note) √
4.4: clavicle performance: can not close or dislocation.
     
Cancellous bone (the bone close up, pull out with both hands under the sides of the bone, bone mouth will crack).
     
Compact bone (the bone close up, the bone with the thumb and forefinger on both sides of the mouth, and then the thumb forward, still can not open the mouth bone).
     
Compact bone (the bone using the above method can not open the mouth feel tough).

5.1: Voltage strength is not enough, especially around the pocket and the force, cracks appear in the required conditions.
5.2: the printing surface or printed content is voltage, affecting the design, text, shape (except for special requirements) √
5.3: there are sharp point voltage, sting (with pocket parts, zipper head).

6.1: the hole or corner of the shape, size, location, quantity does not match with customer requirements.
6.2: The angular position of the hole or hit the print content.
6.3: the location of the hole or corner, compared with the pattern deviation is greater than the customer or company requirements.
6.4: chad not punched out.


7.1: crooked or deformed: the bag overall skew, showing not the phenomenon. Deviate from a certain part of the bag in situ, showing asymmetry. Sealing does not change, the impact to go out, the bag fold organ asymmetry.
7.2: blown film cutting edges jagged or wavy pattern.
7.3: Material or product lines, wear flowers, scratch, seriously affect the appearance. Material or product lines, wear flowers (sand grain), scratch, but has little effect on the appearance.
7.4: wrinkle: because the material itself is too strong or corona treatment or other reasons, the phenomenon of the bag surface wrinkles appear.
7.5: Anti-cut: to print the contents of the anti-cut, cut down (or reverse the opening direction, refers only to flat bags).
7.6: Flat bottom bag sealing off from the general and of 5mm. If the bag is too large or too small, but it may be appropriate to adjust the maximum not more than 15mm, not the least mm (special requirements).

8.1: Non-transparent product or material appear translucent.
8.2: bags with water and gas consumption or fine powder.
8.3: bad occur raw material or product particles (spend).
8.4: red edge requirements: for an extra side of red plus red edge did not ask for an increase or no increase of the red edge of the red edge.
8.5: Color and customer requirements, pattern or color card does not match.
      
Color and customer requirements, pattern or color bias, after communication with customers will not be accepted.
      
Color and customer requirements, model or color card there is a deviation, after communication with the customer to be accepted.
8.6: Seal (line) with black spots or stains, seriously affect the appearance of the product, strong customer response. Seal (line) with black spots or stains, but less or small area, has little effect on the appearance of the product.
8.7: stains: residual slag material itself or the processing of dust, debris and other contaminated bags of noodles. Contaminated surface is small and not prominent, affects only the product appearance.
8.8: a flash seal bags, plastic wire.
8.9: Bags face rotten, damaged, scratched or knot bag.

9.1: the first end of the zipper handled properly, there is a sharp point.
9.2: pocket zippers open and close five times, slipping, stuck, bag items will fall.
9.3: pocket zippers open and close five times, zipper slipping, stuck, bag items will not fall, just to reduce the use of plastic bags.

10.1: Corn rupture, flash, unhandled be dangerous (such as scratches hand, etc.).
10.2: corns play properly, appear crooked or loose.

11.1: brand logo marks are not safe.
11.2: marks the wrong size or wrong.
11.3: marks placement wrong.
11.4: marks off, dra, , , in safety.


12.1: Packing material or method does not match with customer requirements.
12.2: stamped lower, listing, packing instructions and other information of missing, misplaced or mislabelling.
12.3: mixed, put the number of errors, shorts or fitted.
12.4: assembly missing equipment or accessories with the wrong position, wrong direction.
12.5: Packing the finished metal mixed with other debris or hazardous materials.
12.6: finished mixed with foreign matter (such as rags, debris), influence customer image.

12.7: left side tied bags, stacked traces.
12.8; packaging sealing tape or sticky products.
12.9: Packaging and appearance of adverse effects (not strong, not pretty), inside and outside the bag (box) with stains.
12.10: Identify errors (wrong labels, stickers wrong), carton marks and inconsistencies within the box packaging.
12.11: spare parts: spare the customer is not attached to spare.

11. As a result of new products or existing products to increase the emergence of new undesirable phenomenon, can be adjusted as needed.
12. Processing test results:
    
12.1: The examination of qualified and unqualified products separated, and rejects the failed item to be marked for easy identification.
   
12.2: Notification of production and related departments (units) repair or selection, while recording the failure of the failed project records table.

★ with:
Our thick, long 'width tolerances:
Bone bags: thickness tolerance of ± 0.002mm, length and width tolerance of +5 /-2mm.
Flat pocket: with a model error in the position of 5mm or less.
If customers have special requirements, customer-specific requirements shall prevail.
The printing position of the company standard deviation:
Bone bags: a model or customer requirements and the location was called up and down the lead in 5mm.
Flat pocket: with templates or customer location within about 5mm deviation: the upper and lower deviation in less than 2mm.
If customers have special requirements, customer-specific requirements shall prevail.

Antistatic agent ratio:
Static agents engaged in the proportion of raw materials generally: summer (or at higher temperatures) of 2.5% in winter (or the temperature is low) to 3%.
According to specific conditions (such as anti-static effect of the degree requirements, processing conditions, etc.) appropriate adjustments.
Other performance standards:
Tensile strength: PE ≥ 10MPA PP bags ≥ 120MPA (vertical) / 200MPA (horizontal).
Elongation at Break: PE ≤ 150% PP bags ≤ 180%
Shrinkage: PP bags ≤ 5 (vertical) / 4 (horizontal)%
Edge Strength: PE bags ≥ 20N PP bags ≥ 20N
This part of the performance requirements specified for public inspection for the customer's standards.
Quality testing methods and sampling criteria:
Goods inspector and inspection at the time of the first pieces of the process of semi-finished or finished products have been tested so standards must be:
First, the blown film process:
First Article Inspection:
First check whether the coil-like line color, transparency is good, whether from the grain, wrinkle lines, there are additional requirements of the red edge of the red edge, printed material should be attached to the test (see next section)
And then running to measure the thickness of the material on the volume and width (if the bone bag, the length should be cut into the finished product: including full-length, long on the inside / under the long bone, bone length) is consistent with the specifications, must be measured at least 3M can be determined, in order to avoid machine debugging and stability not determined on the next, resulting in varying lengths cut out of the bag (size bags), non-uniform thickness and other undesirable phenomena:
In width and thickness of material testing to determine the clavicle check OK hand tight / opening performance, see the cutting edge of a million jagged \ film material with or without wrinkles, stains, black spots, wear flowers, scratches, lines and other look bad, check received material tightness is appropriate.
If these items are bad, immediately notify the operator handling the above items are OK after the determination, notify the operator can be normal production, then in the "first article inspection record" on the well record.
Second, the printing process:
First Article Inspection:
First check the materials used in printing specifications (with the head coil material identification and measurement of material thickness and width of the roll combination of both to determine) whether a single production line, if it does not match, immediately pinpoint the cause: It is wrong to take the printing roll film or employees hey membrane employees wrong identification. If the employee takes the wrong film printed material, immediately replaced? : If the employee was wrong identity blown, blown film for 4 hours after the production of semi-finished products for traceability testing (volume of each material are for identification checks), identify the error correction.
Then check printing content, location, color, printing the contents of two adjacent whether the production of single-length, pattern match, if not match, immediately see the print content, location, color, printing the contents of two adjacent whether the production of single-length , pattern match, if not match, immediately identify the cause, be corrected.
Followed by adhesion testing (see next section adhesion test if OK, immediately notify the operator, re-printing material change (need to be first-article inspection), the printing volume has failed cut scrap material, after 4 hours of semi-blown retrospective test (for each coil is tested). failure is not expected to re-print volumes corona treatment.
Adhesion test OK to view the contents of sets of digital printing accuracy. If accurate, require the operator to re-tune machine until it sets bit accurate.
Finally, check printing and appearance, in effect: non-printing parts are clean, whether the fuzzy print content (or do not know \ pale), flying oil, grease, Lu Bai, ghosting, incomplete content, spend, or outlets, fluff, hair silk and other undesirable phenomena.
        
Inspection:
        
The first test for the adhesion of the printing content (see next section), attached to the force test if not OK, immediately notify the operator, re-refueling printing (the first piece to be re-test) and semi-finished products after printing this section retroactive testing (volume of each material were tested), semi-finished scrap substandard substandard printing materials to re-corona treatment.
Adhesion test requires the operator shutdown OK after viewing the following items: set bit is accurate, non-printing parts are clean, color printing contents are consistent, whether the vague (or not clear, pale), flying oil, grease, Lu Bai, ghosting, incomplete content, spend, or outlets, bristle, wool yarn and other bad. Inspection of these items must be in reel length of 0. 5M or more. If the aforementioned bad, make a pen in a conspicuous mark on the film material at the same time inform the press operator to improve.
Each inspection of each machine (each 1.5 hours at inspection time) after, in the "inspection table" on the well record.

Third, the sealing and manual processes
First Article Inspection:
First, cut bags used to view material specifications (with the head coil material identification and measurement of material thickness and width of the roll combination of both to determine) whether the production of single-line, if not match, immediately replaced: if the employee was wrong identification process, the within 4 hours after the relevant operator on the production process of semi-retrospective test (for each coil for identity checks). Identifies the error correction.
Then cut out the plastic bag on the dimensions of measurement (each 5PCS), not OK requires the operator to re-adjust size.
And then sealing performance and performance test and check the clavicle is symmetrical and neat incision, sealing is symmetrical, with or without deformation and appearance of the product to start. Determine the plastic bag sealing performance is good, not OK requires the operator to re-heat. If the poor performance of the clavicle cut bags to remind the operator's attention, follow-up may also occur such bad. If cut, bad seal or deformation required to improve the transfer machine operator.
Finally, the appearance of plastic bags (each 10PCS) to check: whether from grain, black spots, oil, wrinkles, wear flowers, scratches, lines, edges, poorly printed. If the above item negative, immediately notify the operator to make appropriate treatment.
Also check the packaging materials and methods used are correct, the effect of small packages (there are all smooth, pretty, not strong) and appearance (with or without oil or dirt) is good.
In the above items are OK, or to determine treatment methods implemented, the operator can notice the normal production, then in the "first article inspection record" on the well record.

Inspection:
First 1.5 hours cut out of the product within a random sample 300PCS (usually 3 packs) for sizes (300PCS in the sampling inspection 5PCS) sealing performance (300PCS in the test 2PCS), clavicle performance (drawn in 300PCS 5PCS (check.
300PCS sample then seal the incision shape 'printing effects, whether the appearance from the grain, black spots, dirt, oil, wrinkles, wear flowers, lines, edges, with or without a mixture of the full test.
Finally, three bags of product this point, to prevent shorts, and more equipment, not make up more equipment out, and remind staff attention.
Performing the above steps if, for 1.5 hours of production of product traceability (full inspection), and inform the foreman asked the corresponding operator cut bags to improve handling.
Each inspection of each machine (each 1.5 hours at inspection time) after, in the "inspection table" on the well record.

Tape test (adhesion test):
A semi-blown inspection or blown film test: every 1.5 hours from blown film reel dug under a film, and then evenly coated with the ink on the film, dry, paved after the glue adhesive tape, and then 2.3.4 Step by three to determine the total score.
Second, the printing test, the adhesive material with a quick press of the volume content of the print, the printing surface with adhesive tape and then opened, repeated three times. If you bring a sticky adhesive ink, this printing is the printing surface adhesion failure.
Third, the printed semi-finished or finished product testing:
1, randomly selected from the print bag 3PCS samples, paving the tape after the glue.
2, friction tape your fingers together four times, the adhesive tape and printed bags full Wu side, then pull tape with printing, bag repeated three times.
3, the printing surface can not afford ink, this printing surface printing adhesion qualified.
4 out of ink printing surface, the adhesion of the printing surface printing failed.

Sealing performance test:
Inspection along the line with both hands and hold the seal, pull hard with both hands, slowly increase the intensity, if the sealing line split, this batch of product failure: If the other parts of the first to break open (where metaphor Yong Shounie ), while the sealing line is not broken, this batch of qualified products.
Level air bags can also be sufficient, shared pocket, outside the pressure in the bag by hand if it is part of the first burst witch, and sealing line is not broken, this batch of qualified products. If the seal line break, this batch of product failure.
Incoming inspection, product testing and shipment inspection of each batch test 3PCS: First Article Inspection OK up until the time of each test: inspection per 1.5 hours test 2PCS.
MIL-STD-105E single sampling plan calculated use of:
1, "↑" arrow above to use the first sampling plan, AC: determine the number of qualified: RE: failed to determine the number.
2, "↓" arrow below to use the first sampling plan, when the sample size is greater than or equal to the volume used and examined.
3, the "peer" principle. Such as the code set C, the corresponding template size is 5, AQL of 6.5, in AQL6. 5 under no AC and RE, as shown by the arrow down one line, AC is 1, RE 2, then the sample The size will change, according to the direction to the left to find peers, the sample size was 8, which is to determine the number down, and the sample program should follow down.

Choose the type of sampling plan and conversion:
1, began testing is generally normal test
2, when the last five batches in 2 batches be rejected, it must be converted to a normal inspection tightened inspection
3, when 5 consecutive batches tightened inspection is acceptance when converted to tightened inspection by the normal test.
4, when 5 consecutive batches tightened inspection is rejected, then stop testing, stop improving OK after conversion to normal inspection.
5, if the test is normal for 10 consecutive batch acceptance, and production stability, quality system normal operation, customer satisfaction and quality of the competent authority or more persons authorized to reduction test.
6, if a grant is to relax the acceptance test, or production of non-specification or delay, or the quality system is not functioning properly, or customer requirements, or other reasons must be converted to normal inspection.

 

 

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