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Benefits of Using Batch Inclusion Bags:
Professor J.D. Lomel says, "Never tie a knot in a batch inclusion bag and throw the knot in the mixer because it will not disperse!"
For more helpful tips, ask Prof. J.D. Lomel.
Also consider how the bags will be handled. If the bags are lifted and carried through the plant, a thicker bag will be needed. If they are used as tub liners and remain in the tubs until dumped directly into the mixer, a thinner, less costly bag can be used. The bag thickness is typically in a range of 2.0-3.0 mils (50-75 microns).
Keep in mind that the most cost effective bag choice will be the smallest and thinnest, and have highest melting point required for the job.
Batch Inclusion - Term used when the ingredients and packaging materials are thrown into the mixer or onto a mill. The packaging melts and disperses into the rubber, becoming a minor part of the compounded product.
Melting Point - The temperature where all crystallinity in the film is destroyed so the film can completely incorporate itself into the rubber.
Vicat or Softening Point - The temperature where changes in the physical properties of the film become noticeable. The film weakens and becomes soft, stretchy, and sticky.
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