Unit-2 L4 Corrugated fibre box, textile and paper sack

FOOD PACKAGES

Overview

  • Focus on Corrugated and Fiberboard boxes, Textil

PACKAGING

Definition

  • Science, art, and technology of enclosing or protecting products for:

    • Distribution

    • Storage

    • Sale

    • Use

Functions of Packaging

  • Four important functions:

    • Containment

    • Convenience

    • Protection

    • Communication

CORRUGATED FIBERBOARD BOX

Structure

  • Comprised of three layers of paper:

    • Inside liner

    • Outside liner (adhesive)

    • Fluting medium (ruffled shape)

Benefits

  • Durable

  • Lightweight with a high strength-to-weight ratio

  • Product protection

  • Cost-effective

  • Environmentally friendly

LINER

Material

  • Made from Kraft paper (80 GSM to 250 GSM)

Functions

  • Resists hazards (puncture, burst, etc.)

  • Holds fluting medium firmly

  • Suitable for printing

  • Moisture resistant (depends on product)

ADHESIVE

  • Starch-based adhesives are commonly used.

  • Sodium silicate is also a typical choice.

FLUTE

Description

  • S-shaped arches or waves in corrugated boxes.

  • Run parallel to the board’s surface.

Advantages

  • Provide strength and rigidity.

  • Regulate temperature within the box.

TYPES OF FLUTES

  1. C flute

  2. B flute

  3. E flute

  4. A flute

  5. F flute

FLUTE FEATURES

A Flute

  • High compression strength

  • Good stacking capability

  • Excellent cushioning

B Flute

  • High resistance to flat crush

  • Good printing surface

  • Used for canned goods packaging

C Flute

  • Good printing surface

  • Medium strength, used for various products

E Flute

  • Best crush resistance

  • Outstanding printing surface

F Flute

  • Good for paperboard applications

  • Superior printing surface

TYPES OF CORRUGATED FIBERBOARD

Single Wall

  • Medium between two sheets of linerboard:

    • Single face board

    • Single wall board (double face)

Double Wall

  • Three sheets of linerboard with two mediums.

Triple Wall

  • Four sheets of linerboard with three mediums.

TYPES OF PAPER USED IN BOXES

Classification

  • VIRGIN: Raw materials (e.g. Bagasse, rice husk)

  • RECYCLED: Made from recycled paper.

Factors Influencing Box Strength

  • Protection requirements

  • Product shape, size, weight

  • Distribution hazards

  • Manufacturing process

TYPES OF BOXES

  • Various designs for specific applications:

    • HSC (High Strength Carton)

    • RSC (Regular Slotted Carton)

    • Heavy Duty Corrugated Box

    • Corrugated Pallet

    • Folding Cartons

    • Custom designs like banana boxes, print boxes, etc.

APPLICATIONS OF CORRUGATED BOXES

  • Packaging for:

    • Industrial goods

    • Consumer goods (chemicals, food, etc.)

Advantages

  • Lightweight

  • High compressive strength

  • Storage efficiency (foldable)

  • Attractive printing options

  • Safe for handling

Disadvantages

  • Quality issues (kraft paper standard)

  • Improper warehouse conditions

TESTS FOR CORRUGATED FIBERS

  • Moisture content

  • Folding endurance

  • Dimensions

  • Bursting strength

  • Crush resistance tests:

    • Edge crush test

    • Ring crush test

TEXTILE PACKAGING

Use

  • Contain, carry, store, and protect goods.

Types of Textile Materials

  1. Flexible Intermediate Bulk Containers (FIBC)

  2. Woven sacks (polyolefin/jute)

  3. Non-paper tea bags/coffee filters

  4. Twine and string for packaging

  5. Food soaker pads

FIBCS (Flexible Intermediate Bulk Containers)

  • Made from tubular or flat polypropylene woven fabrics.

  • Types include:

    • Panel type

    • Circular woven type

    • Baffle type

NET PACKAGING (LENO BAGS)

  • Used for agricultural products (onion, garlic, etc.)

  • Allows airflow to keep products fresh.

POLYOLEFIN WOVEN SACKS

  • Used for:

    • Cement

    • Fertilizers

    • Food grains

  • Characteristics:

    • High strength

    • Moisture proof

JUTE SACK BAGS

  • Used in agriculture for:

    • Vegetables

    • Breathable and environmentally friendly.

PAPER SACKS

Description

  • Made from high-quality kraft paper.

  • Used for:

    • Transporting powders (flour, animal feed).

Types of Paper Sacks

  1. Valve Paper Sacks

  2. Open Mouth Paper Sacks

  3. Rolled Bottom Sacks

ROLLED BOTTOM PAPER SACKS

  • Available in gusset and non-gusseted.

  • Features:

    • Easy open

    • Automatically palletized

VALVED ROUND PAPER SACKS

  • Bottom hexagonal shape for performance.

OPEN MOUTH PAPER SACKS

  • Available in various designs for ease of filling or sealing.

SPECIFIC APPLICATIONS FOR SACKS

  • Animal feed, flour, milk powder, potato sacks, etc.

INNOVATIONS IN PAPER SACKS

  • Developments for present and future needs include:

    • Biodegradable and recyclable bags

    • High barrier protection for food products.

THANK YOU

  • End of presentation.