This document discusses strip packaging technology. Strip packaging involves enclosing individual articles between two webs of material sealed together in pockets by heated rollers. The process involves feeding articles and web materials between rollers with cavities to form sealed pockets around each article. Design considerations for the strips include pocket shape and size. Seal quality is inspected by heating sealed areas and checking for leaks underwater. Common materials used are foil laminates, PET, and aluminum foil for their barrier and sealing properties.

2. STRIP PACKAGING
PRESENTATION
ON
KAUSHAL GADARIYA
SUBJECT
FOOD PACKAGING TECHNOLOGY

3. CONTENTS
1. Introduction
2. Process of packaging
3. Designing of strip
4. Inspection of seal
5. Material used for strip packaging

4. INTRODUCTION
 Strip packaging is an alternate form of
pack for a unit dosage.
 It is a method of enclosing the article
concerned between the two web of
material so that each is contained
between separate compartments.
 The two web of material may not be
necessary to be identical.

6. PROCESS OF PACKAGING
 Two webs of materials being fed between two
heated crimping rollers
 On which they are circumferential cavities of a size
and depth appropriate to the shape, size, and
thickness of the article.
 The article is being packed the material.

7.  The material is fed from a hopper through channels
to drop between the crimping rollers.
 The cavities present in the webs are sealed
together by the activation of the thermoplastic
coating on their inner surface and pockets.
 At the end, pockets are formed around the
contents.

8. DESIGNING OF STRIP
 Strip design are very basic, as the
emerging units are invariably
rectangular or square strip.
 The pockets can round, oval or square
shape.
 The pocket area is depends on
diameter, shape and thickness of
product.

9.  If the pockets is too ‘tight’, it affect the
- perforation of pockets
- wrinkling of seal
 If the seal area likely to be wrinkle or crease
shown, then wider seals may be necessary.
 Generally, the width of seal taken as 5mm and
above.

10. INSPECTION OF SEAL
 To check the seal of packaging material either
periphery of pockets is perforated or not, the
heating of seals are very efficient method.
 Samples strips are taken at regular interval and
exposed them briefly.
 After that get packaged material immersed in a
water to a vacuum of about 680Mb.

11. MATERIAL USED FOR STRIP
PACKAGING
 Material employing foil provides the best,
excellent, protection provided and effective seal is
achieved.
 Two plastic pipes, each with a vacuumised foil,
when laminated in direct contact with one another,
it gives excellent barrier property.

12.  PET (POLYETHYLENE TEREPHTHALATE) is very
resistant to tear, hence it needs a tear feature and
also confers child resistance.
 The most widely used material for excellent
moisture protection are:
- Extrusion coated foil(12gram per sq.meter)
- paper with 40-50 gsm..
- Soft aluminum foil (7 – 9µm).

13. • Extrusion coating process