The fluting type and surface treatment technology of cardboard display rack

By Number of Layers

• Single-layer Corrugated Cardboard: Features one layer of corrugation, simple structure, and low cost.
• Double-layer Corrugated Cardboard: Made up of two layers of corrugation, offering better cushioning performance.
• Triple-layer Corrugated Cardboard: Consists of two layers of corrugation and one medium board, suitable for packaging lightweight items.
• Five-layer Corrugated Cardboard: Made from linerboard, medium board, and two layers of corrugated medium; has higher strength and hardness, suitable for medium-weight items.
• Seven-layer Corrugated Cardboard: Composed of two linerboards and three layers of corrugated medium; has high compressive and impact resistance, suitable for heavy items.

By Flute Type

• Type A Flute: Corrugation height of about 4.5~5.0mm, good cushioning and flexibility, ideal for fragile items.
• Type B Flute: Corrugation height of about 2.5~3.0mm, smooth surface, high compressive strength, suitable for printing and complex-shaped boxes.
• Type C Flute: Corrugation height of about 3.5~4.0mm, between A and B, provides good stiffness and impact resistance.
• Type E Flute: Corrugation height of about 1.1~2.0mm, thin and dense, lightweight, good cushioning, suitable for fine packaging and folding cartons.
• Type F Flute: Finer corrugation, mainly used for making ultra-thin display stands and packaging.

By Waveform Shape

• V-Flute: Good stiffness, robust and reliable, uses less paper, but has low adhesive strength and poor resilience.
• U-Flute: High adhesive strength, good recovery, and cushioning performance, but weak flat compression ability.
• UV-Flute: Combines strengths of V and U flutes; strong, with high adhesive strength, recovery ability, and flexibility, widely used.

By Liner Material

• White Cardboard Corrugated Cardboard: The liner is white cardboard, hard and smooth, suitable for high-end packaging.
• Grey Back Whiteboard Corrugated Cardboard: The liner is grey back whiteboard, has good strength and smoothness, suitable for general packaging.
• Kraft Paper Corrugated Cardboard: The liner is kraft paper, offers good toughness and wear resistance, suitable for heavy-duty packaging.

Glossing Process

• Definition: Applying a layer of clear coating on the printed surface, which, when cured at a specific temperature, forms a glossy finish.
• Purpose:
  • Enhances gloss and abrasion resistance.
  • Improves water resistance and prevents moisture penetration.
  • Enhances the visual effect of the print.
• Types:
  • UV Glossing: Rapid curing with ultraviolet light, efficient, energy-saving, and environmentally friendly.
  • Water-based Glossing: Uses water-soluble coatings, safe and non-toxic, but slower drying.
  • Oil-based Glossing: Traditional method with organic solvents, less environmentally friendly.
• Application: Suitable for all types of corrugated cardboard, especially where high gloss and good water resistance are needed.

Calendering Process

• Definition: Compacting the paper surface through high-temperature, high-pressure rollers after glossing.
• Function:
  • Improves smoothness and gloss.
  • Reduces ink absorption, enhancing print quality.
  • Boosts overall durability.
• Features: Adjustable temperature and time to achieve the best effect.
• Use Cases: Suitable for high-grade display stands and products with high surface quality requirements.

Lamination Process

• Definition: Applying a plastic film to the paper surface with hot-melt adhesive.
• Advantages:
  • Significantly improves water, dust, and abrasion resistance.
  • Extends product lifespan.
  • Enhances visual appeal and the vibrancy of colors.
• Types:
  • PET Film: Heat-resistant, high transparency, suitable for outdoor use.
  • PVC Film: Good flexibility, lower cost, but environmentally impactful.
  • PE Film: High safety, suitable for food packaging.
• Operational Notes: Requires precise control of temperature and pressure to ensure firm adhesion without affecting the original paper properties.

Foil Stamping

• Definition: Using heat and pressure to apply metallic foil onto paper or other materials.
• Effects:
  • Adds luxury and sophistication.
  • Increases product recognition and appeal.
• Applications: Commonly used on logos, emblems, or important text.

Laser Engraving/Cutting

• Definition: Using laser beams for engraving or cutting materials.
• Advantages:
  • High precision and speed.
  • Capable of complex designs and shapes.
  • Does not cause mechanical stress on materials.
• Applications: Used for personalized and specially designed display stands.

Digital Printing

• Definition: Directly printing on paper using digital technology.
• Features:
  • Quick and flexible, no plates required.
  • Allows personalization and small-batch production.
  • High image quality with vibrant colors.
• Scope: Suitable for making promotional materials and display stands.