Two-toned PET bottles made by coinjection.A novel sequential coinjection Coinjection is a polymer injection technology in which different polymers are injected into the same mold. Reasons for using coinjection are:
Inc., Amherst, N.H., injects PET from different colored melt streams into the mold mold, name for certain multicellular organisms of the various classes of the kingdom Fungi, characteristically having bodies composed of a cottony mycelium. The colors of molds are caused by the spores, which are borne on the mycelium. , yielding a preform pre·form tr.v. pre·formed, pre·form·ing, pre·forms 1. To shape or form beforehand. 2. To determine the shape or form of beforehand. n. 1. with two different colored regions. Subsequent stretch-blow molding produces bottles of two colors with a minimal demarcation area, typically located where a label may be applied. Both regions could be colored, or one could be clear PET. DevTech modified a 300-ton Husky injection press with a second barrel, new controls, and a multi-layer manifold manifold In mathematics, a topological space (see topology) with a family of local coordinate systems related to each other by certain classes of coordinate transformations. Manifolds occur in algebraic geometry, differential equations, and classical dynamics. , according to according to prep. 1. As stated or indicated by; on the authority of: according to historians. 2. In keeping with: according to instructions. 3. president Marty Beck. Special tooling is also essential to the process. The process can be applied to bottles of any size or shape, and the color ratio can be varied from 50/50 to 70/30, says Beck. The colors can be distributed in random patterns for a special-effect appearance. DevTech said it will license the technology. DevTech: (603) 889-8311 * PTDirect: 719HZ |
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