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What are shrink sleeves in glass?

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+1 vote
in Food Packaging Technology by (63.0k points)
What are shrink sleeves in glass?

(a) Adhesives

(b) Temperature control

(c) Protective labels

(d) Lubricants

I have been asked this question by my college director while I was bunking the class.

This intriguing question originated from Surface Treatment of Glass topic in section Glass Packaging Materials of Food Packaging Technology

1 Answer

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Best answer
The correct choice is (c) Protective labels

Explanation: Shrink sleeves are protective sheets used on glass. Most shrink sleeves are made of oriented plastic films that shrink around a glass container when heat is applied. Two types of protective labels are used on glass bottles in the form of a body sleeve: one constructed from thin, foamed PS; the other is made from uniaxially oriented PVC or PS. PVC offers  some thermal insulation. Whereas PS contains the glass fragments and prevents shattering of glass, if droppped.

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