Shrink-sleeve-blog-2

How to Get Right Shrinking for your Product

Different shapes of containers are coming in global market to attract the customers. The first challenge is to decide the perfect labeling on it. The most common used film is PVC Shrink film. But what is right for your product shape and size. The right Shrinking depends on many factors.

  • Shape of container
  • Size of container
  • Area to be covered by label
  • Shrink tunnel

Now how to decide and achieve the best fitment to product. Depending upon Shrinkage needed a variety of shrink films are available with different percentage of shrinkage. You have to choose the right one suitable for your container. Secondary the shrinking equipment i.e. shrink tunnel is equally important depending upon the product. It should be customized as per heat needed to shrink the sleeve on container.

The most important and essential thing to get a perfect shrink is Design and artwork. The area and element need to be adjusted in the artwork so that after shrink you get the best aesthetic. Pr-distortion in artwork can also be done to predict post shrinkage result in most part the shrink manufacturers can support deciding these factors as they have good technical know how about the products.

Shrink Sleeve Common Problems and There Solutions

The hallmarks of a bad shrinking job are easy to spot wrinkle, ink bleeding, tearing and uneven shrinking drive customers read on to discover possible problems & solutions.

Possible problems –

  • Uneven shrinking due to decorative inks coating finishes on shrink labels
  • Uneven edges shrinkage

Possible solutions –

  1. Increase the tunnel temperature or air flow to increase the degree of shrinkage where higher % edge of shrinkage is require.
  2. More complex issues require a customer designed solution to optimize the application of heat to the product please take help of your shrink manufacturer technical team.
  3. Adjust the tunnel temperature air flow up or down to get more uniform application of heat.
  4. Customer the heat profile so that edges or corners of the container are exposed to less heat.
Shrink-sleeve-blog-1

shrink sleeve common problems and their solutions

Problem 1: Wrinkled or Poked appearance

Root cause:

  • Uneven heat or adequate heat.
  • Uneven material shrinkage due to type of plastic, decorative inks, coating, embossing or finishes on shrink labels.

Solutions:

  • Increase the tunnel temperature or airflow to increase the degree of shrink.
  • More complex issues require a custom designed solution to optimized the application of heat to the part.

Problem 2: Rising

Root cause:

  • Tapered bottle design.
  • Too much heat at the top of the bottle.

Solutions:

  • Tack label at the lock point of the bottle before entering the shrink tunnel.
  • Adjust the heat flow from top area.

Problem 3: Uneven shrinking

Root cause:

  • Uneven or inefficient application of heat.
  • Uneven material shrinkage due to type of plastic, decorative ink, coating and complex bottle shape.

Solutions:

  • Adjust the heat flow up or down to get a more uniform application of heat.
  • Adjust the tunnel temperature according to type of shrink.

Problem 4: Over shrinking (cow feet shape or tear the material)

Root cause:

  • Give the heat for long time.
  • emperature is more according to material.
  • More complex shape bottle design.

Problem 5: Splitting seals

Root cause:

  • Bad seals are probably common in shrink wrap.
  • Sometimes it is less sealed or open.

Solutions:

  • Use proper glue to seal the shrink sleeve according to material.
  • Sometimes it is unevenness of shrink material.
  • Sometimes it is without perforation or pin holes.

Problem 6: Hair type

Root cause:

  • It is due to uneven cutting of shrink sleeve.

Solutions:

  • Make sure cutter is ok or cutting speed is uneven.
  • Film is not uneven in thickness.

Problem 7: Ballooning type

Root cause:

  • Shrink film exposed to hot air after sealing.
  • Complex shape of container.

Solutions:

  • Pin hole is used or perforation is used

Problem 8: Picasso effect type

Root cause:

  • Unevenness of shrinking
  • More distortion of film.

Solutions:

  • Check distortion of design first and conveyor speed also.
  • Check shelf life of shrink film, each shrink film has its own life for use.
  • Check if chain temperature is too high.
Taurus Packaging Pvt

The Plastic Debate- My Take

Our rapid industrial revolutions have always been unchecked. Putting pressure on the
world’s resources has always been the side effect of industrialization and consumerism; be it oil, coal, human resource and even plastics.

The unbalanced production and consumption have led to our resources running out or
getting over-used. It is causing a significant impact on the environment especially plastics.

But let me ask a question…

Is the Plastic really the problem?
Plastic has many benefits. It keeps many industries and technologies running. It has made the construction of many consumer durables and cars easier with lightweight plastic materials. Plastic packaging also contributes to minimizing food waste, increases food shelf life when packed and makes its movement cheaper and easier to far fledged regions of the world.

Plastics is a boon, for the food scarcity problem of the world.

What is the problem?
A war on all plastics has been declared by media, environmentalists and Greta Thunberg’s of the world. Why is #SayNoToPlastic trending everywhere? Plastic litter is overflowing our landfills, oceans, reaching food chains of animals, marine life and even us humans as microplastic particles.

Plastic is not getting recycled, use is unchecked, burnt in uncontrolled conditions, drains getting clogged, beaches are littered.

Then what is the Real Problem?
Its not plastics to be blamed. Any material used and littered unchecked will create the same issues. Even you throw the glass on the floor, it is bound to cause harm. All resources must be used and disposed of properly. Why blame Plastics, if we are not handling it properly.

The solution does not lie in banning plastics. Loom around, plastics are everywhere. Food packaging, pharmaceuticals, automobiles, furniture, clothing etc. Imagine life without plastics in all these products. Let’s do the right thing, let’s recycle, reuse and reduce. But banning plastics is not the solution.

At a time when a ‘climate emergency’ has been declared, it is important that people
understand that ‘plastic-free’ does not necessarily mean ‘better for the environment’.
Using any material has environmental costs, but the costs associated with plastic products are often significantly lower than using alternative materials.

Plastics provide many critical benefits across a range of products and it’s important this fact is recognized. Plastics will – and should – continue to play a vital role in all our lives going forward.