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How to choose anti-counterfeiting bag materials?

Author: Site Editor     Publish Time: 16-05-2026      Origin: Site

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An article on understanding materials, scenes, and cost-effectiveness.

In the current era of high risks of counterfeit goods smuggling and logistics tampering, anti-counterfeiting bags are not only packaging, but also the "first line of defense" for brand reputation and product safety. The core of anti-counterfeit bags lies in material selection - the anti-counterfeit effect, moisture-proof and fresh-keeping ability, price vary greatly among different materials, and the adaptability to different scenarios is also completely different. Today, starting from the characteristics, disadvantages, and applicable scenarios of mainstream anti-counterfeiting bag materials, we will help you accurately match your needs, quickly identify the king of cost-effectiveness, moisture-proof and fresh-keeping options, and low-cost first choice.

1、 Full analysis of mainstream anti-counterfeiting bag materials

1. PE (polyethylene) material - the most universal basic version

Core Features

  • Flexible and durable: tear resistant, puncture resistant, not easily damaged, can be repeatedly sealed (some styles);

  • Food grade safety: non-toxic and odorless, in compliance with GB4806.7-2016 food standards, can directly come into contact with food;

  • Medium moisture resistance: The molecular structure is dense and can isolate ordinary water vapor, providing sufficient moisture resistance for daily use;

  • Easy to do anti-counterfeiting: Suitable for removing and leaving text, VOID anti-counterfeiting, QR code traceability, and clear printing;

  • Affordable price: Unit price 0.3-0.6 yuan/piece (regular size), more cost-effective for bulk orders.

Obvious disadvantage

  • Transparency is average: not as transparent as OPP and PET, with weak high-end display feel;

  • Low temperature hardening: Materials below -10 ℃ become brittle and their impact resistance decreases;

  • Limited barrier properties: weak oxygen and light blocking ability, not suitable for long-term preservation of highly active products.

Adaptation scenario

  • Cost effective universal packaging: e-commerce small items, clothing, stationery, and ordinary accessories;

  • Dried food: nuts, snacks, tea (short-term storage);

  • Basic anti-counterfeiting requirements: file bags, regular gifts, and non high value products.

2. OPP (oriented polypropylene) material - high transparency display style

Core Features

  • Full transparency: with a light transmittance of 95%+, high-definition transparency, it can maximize the display of product appearance;

  • Strong sealing performance: Good heat sealing effect, superior leak and dust prevention ability compared to ordinary PE;

  • Sturdy and stylish: The material is stiff, the bag body is flat and not soft, and the texture is good;

  • Low price: Unit price of 0.2-0.5 yuan/piece, cheaper than PE.

Obvious disadvantage

  • Fragile and easy to break: Poor flexibility, prone to cracking when folded or squeezed, not suitable for repeated use;

  • Weak moisture resistance and preservation: Poor ability to isolate moisture and oxygen, not suitable for humid environments or long-term preservation;

  • Temperature resistance: It is easy to soften above 80 ℃, more brittle at low temperatures, and suitable for a narrow temperature range.

Adaptation scenario

  • High aesthetic display packaging: stationery, small accessories, cosmetic samples, books, candles;

  • Short term, dry environment use: disposable packaging, transparent display bags, non moisture resistant products;

  • Scenarios with extremely low budgets and heavy emphasis on appearance: low-priced small commodities, street vendor goods.

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3. PET/PE composite material - high barrier all rounder

Core Features

  • Strong alliance: PET provides high transparency, high stiffness, and puncture resistance; PE provides thermal sealing and flexibility;

  • Highly moisture-proof and fresh-keeping: Water vapor transmission rate (WVTR) ≤ 5g/m ⊃2; · 24h, oxygen and moisture barrier capacity is 3-5 times that of pure PE;

  • Wide temperature resistance range: stable from -30 ℃ to+80 ℃, suitable for freezing, refrigeration, and room temperature use;

  • High anti-counterfeiting limit: It can be used for laser anti-counterfeiting, holographic anti-counterfeiting, RFID embedding, and has strong anti duplication properties.

Obvious disadvantage

  • High price: The unit price is 0.8-2 yuan/piece, which is 2-3 times more expensive than pure PE;

  • Non degradable: Traditional composite films have poor environmental friendliness and high difficulty in recycling;

  • The hand feel is relatively hard: its flexibility is not as good as pure PE, and it is prone to creases when folded.

Adaptation scenario

  • High value+high preservation demand: high-end food (fresh, meat, high-end snacks), medicine, health products;

  • Moisture proof and anti smuggling essential needs: electronic products, precision parts, precious medicinal herbs, luxury goods;

  • Long term storage/transportation: cross-border logistics, long-term warehousing, cold chain transportation products.

4. Aluminum foil composite material - top-grade moisture-proof and light resistant design

Core Features

  • Barrier ceiling: completely shielded from light, oxygen, and moisture, with full moisture, mold, and oxidation resistance, extending shelf life by 3-5 times;

  • Strong weather resistance: resistant to high and low temperatures (-40 ℃~+120 ℃), corrosion-resistant, and UV resistant;

  • Good anti-counterfeiting concealment: The aluminum foil layer can hide anti-counterfeiting codes, traceability chips, and prevent scanning and copying.

Obvious disadvantage

  • Opaque: completely blocked from light, unable to display products, requiring window design (increasing cost);

  • The most expensive price: unit price of 1.5-5 yuan/piece, 5-10 times that of pure PE;

  • Easy to wrinkle: The material is soft and prone to wrinkling during transportation, which affects the appearance;

  • Non microwave: Made of metal material, cannot be directly heated.

Adaptation scenario

  • Ultimate moisture-proof and fresh-keeping: fresh meat, seafood, frozen food, dry goods (fungus, shiitake mushrooms);

  • Light resistant essential products: pharmaceuticals, health supplements, coffee, tea, cosmetics (essential oils);

  • High confidentiality and high value: precious metals, jewelry, important documents, confidential information, judicial evidence.

5. PA (Nylon) material - high-strength, puncture resistant design

Core Features

  • Extremely high strength: tear resistant, puncture resistant, wear-resistant, and not easily punctured by sharp objects;

  • Good temperature resistance: stable at -60 ℃~+100 ℃, suitable for high-temperature cooking (some styles);

  • Good barrier properties: better oxygen and moisture resistance than PE, close to PET/PE composite;

  • Strong flexibility: not brittle at low temperatures, suitable for packaging frozen and sharp items.

Obvious disadvantage

  • High price: Unit price 1-3 yuan/piece, higher cost than PE and OPP;

  • Strong moisture absorption: Long term exposure to humid environments can absorb water vapor, affecting barrier properties;

  • Transparency is average: not as transparent as PET and OPP, and the display effect is limited.

Adaptation scenario

  • Sharp/heavy objects: hardware parts, tools, angular foods (nuts, bone snacks);

  • High temperature/freezing scenarios: steamed food, frozen meat, cold chain transportation products;

  • High strength anti-counterfeiting: bank cash bags, escort bags, and valuable item sealing bags.

image

2、 Three core requirements, choose the right materials directly

1. Highest cost-effectiveness: PE material

The lowest price (regular size 0.3-0.6 yuan/piece), anti-counterfeiting, moisture-proof, flexible and balanced, with no obvious shortcomings;

Adapting to 80% of common scenarios, the cost of bulk procurement is controllable, the after-sales damage rate is low, and it is the most cost-effective in the long run.

2. Moisture proofing and freshness preservation are best: aluminum foil composite material

Completely isolated from moisture, oxygen, and light, with top-notch preservation effect, suitable for fresh, dry, pharmaceutical and other products that are prone to moisture and deterioration;

The budget is slightly higher but the shelf life is significantly extended, reducing product loss and resulting in high comprehensive income.

3. Cheapest: OPP material

The unit price is as low as 0.2 yuan/piece, with high transparency and stiffness, suitable for low-priced products that are disposable, dry, and heavy display;

Only recommended for short-term, non humid, and non high-intensity scenarios, as long-term or humid environments are prone to damage.

3、 Final summary

The core of selecting anti-counterfeiting bag materials is "demand matching+cost balance" :

Due to limited budget and versatile scenarios, choose PE with closed eyes to maximize cost-effectiveness;

Re display, one-time drying scene, choose OPP, the cheapest;

High value, requiring preservation and moisture resistance, choose PET/PE composite;

Ultimate preservation, light avoidance and confidentiality, selected aluminum foil composite;

Sharp heavy-duty, cold chain high temperature, choose PA nylon.

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