Standard Woven Bag Specifications:30cm-----75cmWide, available in any length, suitable for both standard and full-color printing.

Application Scope

Vegetables and other agricultural products packaging

Subsequently replaced with paper-based cement packaging bags.

Due to product resources and pricing issues, our country has...6010 billion woven bags for cement packaging, accounting for a significant portion of bulk cement packaging85%Above, with the development and application of flexible container bags, plastic woven containers are widely used for marine transportation and packaging of agricultural and industrial products. In agricultural product packaging, plastic woven bags are extensively used for packaging aquatic products, poultry feed, covering materials for farms, sunshade, windbreak, and hailproof sheds for crop planting, etc. Common products include feed woven bags, chemical woven bags, putty powder woven bags, urea woven bags, vegetable mesh bags, and fruit mesh bags, etc.

Food Packaging

Rice, flour, and other food packaging is increasingly being replaced by woven bags. Common types include rice woven bags, flour woven bags, corn woven bags, and other woven bags.

Geotechnical Engineering

From80Since the development of geotextiles, the application fields of plastic woven materials have been broadened, widely used in small-scale water conservancy, electricity, highways, railways, seaports, mining construction, and military engineering projects. In these projects, geosynthetic materials provide functions such as filtration, drainage, reinforcement, isolation, and waterproofing, and plastic geotextiles are one type of synthetic geosynthetic materials.

Travel Transportation

Temporary tents and sunshades in the tourism industry, as well as various travel bags and suitcases, all utilize plastic woven materials. Various canvases are widely used as covering materials for transportation and storage, replacing the easily moldy and cumbersome cotton canvases. Construction barriers and netting are also extensively applied in plastic woven materials. Common items include logistics bags, logistics packaging bags, cargo bags, and cargo packaging bags.

Everyday Consumer Goods

Most workers, farmers, carriers, and market-goers use plastic woven products, which are everywhere in stores, warehouses, and homes. The padding material for synthetic carpet has also been replaced by plastic woven materials, such as shopping bags, supermarket bags, eco-friendly supermarket bags; as well as woven cargo bags for logistics transportation, logistics woven bags.

6Flood control supplies

Flood relief and disaster response can't do without burlap bags, and neither can the construction of embankments, riverbanks, railways, and highways. This includes flood defense burlap bags, drought-resistant burlap bags, and flood-resistant burlap bags.

National Standards

TAGS:National Standard for Plastic Woven SacksGB/T8946-2013

Date:2008-08-22

This standard specifies plastic packaging, Transportation Storage requirements. This standard applies to polypropylene, Polyethylene resin is the main raw material. By extrusion, Extrude into flat filaments Further weaving, Plastic woven bags, made from bag-making processes, designed for packaging powdery or granular solids and flexible items (hereinafter referred to as "bags"). 。

Reference Standard

The provisions contained in the following standards: Provisions incorporated into this standard by reference to this specification. At the time of this standard's publication, All displayed versions are valid. All standards will be revised. Parties using this standard should discuss the use of the following standards.***Possibilities of the new version.

GB/T 1039-92 Plastic Mechanical Property Testing Methods - General Principles

GB/T 1040-92 Plastic Elongation Test Method

GB/T 2828-87 Batch inspection counting sampling procedures and sampling sheets (for inspection of continuous batches)

GB 2918-82 Standard Environment for Plastic Sample Condition Adjustment and Testing

GB/T 4857. 5-92 Packaging, Transport Packaging Units, Drop Test Method

GB/T 5009. 60-1996 Analysis Methods for Sanitary Standards of Molding Products Made of Polyethylene, Polystyrene, and Polypropylene for Food Packaging

GB 9687-88 Sanitary Standards for Polyethylene Molding Used in Food Packaging

GB 9688-88 Sanitary Standards for Food Packaging Polypropylene Molding Products

Product Categories

Variety

Priced by primary composition material, including polypropylene bags, Polyethylene bags.

Bottom-sewn bags, divided by sewing methods Seam Bottom Pouch

Test Method

Tensile Load

Test Conditions

Please provide the Chinese content to be translated.GB/T 1039 Regulations are in effect. Samples are tested at temperature.23℃±2℃, Moisture Level Adjustment4hAnd tests were conducted under these conditions.

Test equipment should comply withGB/T1040-1992 Chapter6Chapter regarding equipment specifications: Fixture spacing is200mmThe empty vehicle descends at a speed of200mm/min±20mm/min。

Sampling Method

Taking the folded surface of the sewing roll as the sampling surface, take the warp and weft directions from each bag. Edge direction Two pieces of fabric samples each for bottom stitching. Long300mmApproximately 6 inches wide60mmNo content provided for translation.50mm, such as***Leave the subsequent thread if it's more than half a thread longer. The stitching on both sides of the sample should be left slightly longer, with three knots tied on each side.

Record the tensile load of the sample and take the arithmetic mean.

If a sample breaks or slips in the fixture during testing, affecting accuracy, a new sample should be used to redo the test.

Thermal resistance

Remove two samples each from the warp and weft directions from the bag, length300mm, wide20mm。

Overlap the surfaces and apply on top9.8 NThe load, place in80℃ oven1hAfter removal, immediately separate the two overlapping specimens and inspect for any abnormal conditions such as sticking or melting marks on the surface.

Drop resistance

Test environment is at normal temperature and humidity.

The test site is a level concrete surface.

Fill Factor0.80～0.85。

Testing quality and material selection

TABagged type20kgPolypropylene, polyethylene resins, or materials of equivalent density.

ABagged25kgPolypropylene, polyethylene resins, or materials of equivalent density.

BBagged type40kgUrea or material with equivalent density.

CType bags50kgUrea or material with equivalent density.

Test Sequence

******Vertical—Horizontal—Lateral

Article 2: Parallel direction—Lateral—Longitudinal

Section 3: Lateral—Vertical—Horizontal

Place the sample on1.2mThe height of free fall, by5.7.5Perform three drop tests in the specified order to check for any bag破裂 (rupture) and packaging leakage.

Sanitary performance

Please provide the Chinese content that needs to be translated.GB/T5009.60Regulations are in effect.

Inspection Regulations

Batching

Products of the same model and specification are grouped as a batch, with no batch exceeding1510,000.

Sampling

Bag appearance and deviation qualification determinationGB/T2828A specified normal sampling plan is conducted.(See Table5)Each woven sack is a sample unit.

Bulk Range	Sample Size	Qualified Assessment NumbersAc	Number of不合格judgmentsRc
501—1200	32	3	6
1201—3200	50	7	8
3201—10000	80	10	11
10001—35000	125	14	15
35001—150000	120	21	22

Tensile load: random sampling per batch5Thread,Amongst2Line for spare,3Product line5.5.3Sample testing.

Other inspection items as per Item No.5The chapter stipulates random sampling; the number of samples should meet the testing requirements for the necessary items.

Inspection Category

The factory inspection items include tensile load.

Type Inspection

The type testing items include all items in the technical requirements. Generally, an annual inspection is conducted. Type testing should be carried out under any of the following conditions:

a) Trial type certification for new or existing products undergoing factory conversion production.

b) After formal production, any significant changes to the structure, materials, or process may affect product performance.

c) Upon resuming production after a long-term halt.

d) When the factory inspection results show significant differences from the previous type inspection;

e) The national quality supervision authority has proposed the requirement for type testing.

6.4Evaluation Rules

Quality Assessment of Sample Units

The appearance and deviations of the bags are inspected as required. If all items pass the inspection, the sample unit is deemed qualified.

Quality Determination of Qualified Batch

Bag appearance and deviation qualification determinationGB/T2828Regulations are in place, indicating batch quality by the number of non-conforming products per hundred units, with a general inspection level ofIQualified Quality LevelAQLPlease provide the Chinese content to be translated.6.5See specific regulations in the table.5。

If there are any不合格 items in the tensile strength test, the non-conforming items should be retested with double the sample size from the original batch, and if the retest results are all合格.,Then, the batch is deemed qualified.

Heat Resistance Test

If the heat resistance test fails, the type test is considered不合格.

Drop Test

If the drop test is not passed, the type test is considered to be不合格.

Sanitary Performance

If any sanitation performance indicators are不合格, the type test is considered不合格.

Branding, Packaging, Transportation, Storage

Brand

The product packaging should include the manufacturer's name, product name, specifications, quantity, standard number, trademark, and manufacturing date, among other information. Special requirements shall be decided through mutual consultation.

Packaging

Bags should be sturdy, flat, and suitable for transportation.

The number of items per package is subject to negotiation between both parties.

Each package should contain a product certificate of conformity.

Transportation

Bags should be handled with care during transportation, avoiding exposure to sunlight and rain, to ensure the packaging remains intact.

Storage

Bags should be stored in a cool, clean indoor area, with a storage period not exceeding eighteen months from the date of manufacture.

Woven bags, woven bag pockets, snake skin bags, Sichuan woven bags, fertilizer packaging bags, color-printed woven bags