In the extrusion process, the raw material is conveyed down a heated barrel by a rotating screw. The material melts as it proceeds down the barrel and is forced through a die which gives it its final shape.
This means the material is soft and rubbery. The forced flow through the die causes stretching in the direction of flow, but to produce a biaxially stretched film, further stretching in the direction perpendicular to the machine direction is required.
The stretched film is then taken up by several rollers. These rollers are usually chilled to quickly cool quench the rubbery film. The rapid cooling of the film maintains the stretched shape.
When the film is heated, the polystyrene chains return to their more random configuration. The polystyrene chains are said to "remember" their most stable random configuration, even though they can be "frozen" into a less stable configuration by rapid cooling during manufacture.
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How to. About This Article. Tested by:. Co-authors: Updated: October 29, Categories: Craft for Kids. Article Summary X If you have a Shrinky Dinks plastic sheet, create a design on the rough side of the sheets, or use permanent marker to decorate the smooth side. Italiano: Fare Shrinky Dinks. Nederlands: Knutselwerkjes maken van krimpfolie. Bahasa Indonesia: Membuat Shrinky Dink. Thanks to all authors for creating a page that has been read , times. My kids got a shrinky dink when they were young.
We found it but I wanted to put them in the oven because that is the way we made them. Thanks for helping out. I couldn't remember the temperature and time.
Rated this article:. More reader stories Hide reader stories. Did this article help you? Cookies make wikiHow better. By continuing to use our site, you agree to our cookie policy. Cathy Thron Jul 7, Susanna Wells May 21, You are so thorough with every detail. Thank You! Anonymous Apr 14, My family made them after seeing them at the science museum.
I found that using a heat gun worked great! Michele Flaherty Sep 12, They came out perfect with these directions! Kat J. Jun 15, They turned out perfect! Share yours! More success stories Hide success stories. Punch the hole, close to the edge of the paper. Bake them see directions below. Seal with a sealer. Can you microwave Shrinky Dinks? Category: hobbies and interests beadwork.
How long do you put Shrinky Dinks in the microwave? Can you shrink Number 1 plastic? Is Shrinky Dink plastic toxic? What plastic can shrink in the oven? How small do Shrinky Dinks get? What items are 6 plastic? Can I use transparency film for Shrinky Dinks? Can you shrink plastic in the oven? Can you use crayons on Shrinky Dinks? Do copics work on Shrinky Dinks? How much are Shrinky Dinks? Compare with similar items. How do you print Shrinky Dinks? How to Print on Shrinky Dinks.
Create images on your computer. Log In Register Now! Can you print on Shrinky Dinks? How to do Shrink Plastic Crafts. What do you use to color Shrinky Dinks? Ways to Shrink Plastic Shrink plastic in the oven: this is the classic way to make Shrinky Dinks that is probably the easiest option. Can you do Shrinky Dinks in the Microwave? What do you want to make with shrink plastic?
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