Clear packaging bags | Visible Moisture Proof Packaging | Clear Bags | Puncture - Resistant Transparent Film | Food - Grade Transparent Bags

Product Features

The core design logic of transparent bags revolves around five key dimensions: barrier properties, heat - sealability, mechanical strength, environmental friendliness, and cost control. Different combinations of materials can meet diverse requirements. The following are common material structures and their corresponding design logics:

1. Material Structures and Design Logics

Barrier - Priority Type

• Structure: PA (Nylon)/EVOH (Ethylene - Vinyl Alcohol Copolymer)/PE (Polyethylene)

• Logic: EVOH offers extremely high oxygen barrier properties (<1 cc/m²·day). PA enhances puncture resistance, and PE ensures good heat - seal performance [16]. This structure is suitable for packaging food (such as meat and coffee) and pharmaceuticals.

• Cost: Medium to high, because the price of EVOH is relatively high.

Heat - Sealability - Optimized Type

• Structure: BOPP (Biaxially Oriented Polypropylene)/CPP (Cast Polypropylene)

• Logic: The CPP layer provides low - temperature heat - sealability (heat - seal temperature of 90 - 120°C), while BOPP improves transparency (>90%) and stiffness . It is commonly used for packaging biscuits and puffed food.

• Cost: Low, as CPP and BOPP are bulk materials.

Mechanical - Strength - Enhanced Type

• Structure: PET (Polyester)/PA/CPP

• Logic: PET offers high tensile strength (>150 MPa), PA enhances tear resistance, and CPP guarantees reliable heat - sealing [68]. This structure is suitable for packaging electronic products and industrial parts.

• Cost: Medium to high due to the complexity of the multi - layer lamination process .

Eco - friendly and Biodegradable Type

• Structure: PLA (Polylactic Acid)/PBAT (Poly (Butylene Adipate - co - Terephthalate))

• Logic: PLA is derived from renewable resources, and PBAT improves flexibility. The degradation rate can reach over 90% within 180 days. It is used for short - cycle products such as fresh produce and cosmetic samples.

• Cost: Relatively high, but market growth is driven by policy subsidies.

Low - Cost General - Purpose Type

• Structure: Single - layer LDPE (Low - Density Polyethylene)

• Logic: LDPE has good heat - sealability (heat - seal strength >15 N/15mm) and low cost (about 0.5 yuan per piece), but poor barrier properties (oxygen transmission rate >5000 cc/m²·day) [7][14]. It is suitable for packaging low - value daily necessities.

2. QFD Model: Transformation of Packaging Requirements into Technical Parameters

Based on the QFD (Quality Function Deployment) model, customer requirements are mapped to technical indicators to construct a house of quality matrix:

Key Analyses:

• Priority: Barrier properties (EVOH layer thickness ≥15μm) and heat - sealability (CPP thickness ≥40μm) are the core technologies .

• Conflict Resolution: The high cost of eco - friendly materials (such as PLA) can be reduced by large - scale production to achieve a target unit price of <2 yuan per piece .

• Verification Indicators: Performance is quantified through standards such as ASTM D3985 (oxygen - barrier test) and GB/T 1040.3 (tensile test) .

3. Application Scenarios and Market Strategies

High - end Food Packaging

• Market Positioning: Target high - value - added food products (such as premium coffee and organic nuts), emphasizing high barrier properties and visibility.

• Product Combination: PA/EVOH/PE structure, combined with matte surface treatment to enhance texture.

• Differentiation: Embed smart labels (such as NFC chips) to enable product traceability and anti - counterfeiting .

E - commerce Logistics Packaging

• Market Positioning: Serve e - commerce platforms, emphasizing impact resistance and low cost.

• Product Combination: PET/PE composite structure (thickness of 80 - 100μm), with the cost controlled within 0.8 yuan per piece.

• Differentiation: Provide a customized printing area (accounting for 30% of the surface area) to support brand logos and QR - code marketing.

Eco - friendly FMCG Packaging

• Market Positioning: Target Generation Z consumers, emphasizing biodegradability and design appeal.

• Product Combination: PLA/PBAT materials, offering options such as Morandi color series and embossed textures [12][14].

• Differentiation: Cooperate with public welfare organizations. For every bag sold, donate 0.1 yuan to an environmental protection fund.

Industrial Precision Parts Packaging

• Market Positioning: B2B market, focusing on anti - static and anti - scratch requirements.

• Product Combination: PET/PA/CPP structure, with carbon nanotubes added to the inner layer (surface resistance <10⁶Ω) .

• Differentiation: Provide size customization services (error within ±0.5mm) to meet the protection needs of precision instruments.

Product Parameters

This table lists in detail the information and payment methods for packaging purchases, providing a comprehensive reference for your wholesale purchasing decisions.