Decoration and printing on polyolefin surfaces
    1.
    发明授权
    Decoration and printing on polyolefin surfaces 失效
    在聚烯烃表面装饰和印刷

    公开(公告)号:US5840142A

    公开(公告)日:1998-11-24

    申请号:US754159

    申请日:1996-11-22

    摘要: There is disclosed a method for the permanent application of indicia to the surface of the polyolefin object by applying pigmented material to the surface in an indica pattern, preferably from a transfer sheet. Preferably the pigmented material is a mixture of finely divided pigment, hydrocarbon wax and finely divided polyolefin. The polyolefin surface bearing the indicia is coated with a coating mixture comprising a mixture of polyolefin and a binder such as a rosin or wax. Thereafter, the coated, indicia-bearing polyolefin surface is surface-heated to a temperature sufficient to fuse the coating and incorporate the coating and indicia permanently into the polyolefin object. The heating can be performed by passing a heat source across the surface.

    摘要翻译: 公开了一种通过将着色材料以指示图案(优选从转印片材)施加到表面上来永久地将标记施用于聚烯烃物体的表面的方法。 优选地,着色材料是细分散的颜料,烃蜡和细碎聚烯烃的混合物。 承载标记的聚烯烃表面涂覆有包含聚烯烃和粘合剂如松香或蜡的混合物的涂料混合物。 此后,涂覆的带标记的聚烯烃表面被表面加热到足以熔化涂层并将涂层和标记永久地结合到聚烯烃物体中的温度。 加热可以通过使热源穿过表面进行。

    Method for enhancement of the surfaces of molded plastic products
    2.
    发明授权
    Method for enhancement of the surfaces of molded plastic products 失效
    增强塑胶制品表面的方法

    公开(公告)号:US5746961A

    公开(公告)日:1998-05-05

    申请号:US566906

    申请日:1995-12-04

    摘要: An enhancement composition and a method for its use in a molding process. The enhancement composition is applied to the interior surfaces of the mold cavity used in a molding process such as blow molding, injection molding, thermoforming or rotational molding. The enhancement composition is applied prior to closing of the mold and molding of the plastic article. The enhancement composition comprises a liquid carrier containing up to about 50 weight percent of enhancement solids which comprise a mixture of an enhancement solid such as particles of varied thermoplastic and thermosetting resins, metal flakes, glass beads, carbon, graphite, etc., and a binder solid which can be a hydrocarbon resin, wax, rosin or terpene base resin. The invention provides for almost unlimited modification of the surfaces of molded plastic products, offering the plastics fabricator the ability to mold products having very specialized surface properties with a low cost structural polymer, e.g., a product molded of low cost, low density polyethylene having the surface characteristics of Teflon.

    摘要翻译: 增强组合物及其在成型工艺中的应用。 增强组合物被应用于用于诸如吹塑,注射成型,热成型或旋转成型的成型过程中使用的模腔的内表面。 增强组合物在模具闭合和塑料制品的模塑之前被应用。 增强组合物包含含有至多约50重量%增强固体的液体载体,其包含增强固体如各种热塑性树脂和热固性树脂的颗粒,金属薄片,玻璃珠,碳,石墨等的混合物,和 粘合剂固体,其可以是烃树脂,蜡,松香或萜烯基树脂。 本发明提供了对模制塑料制品表面的几乎无限制的改性,为塑料制造商提供了用低成本的结构聚合物模制具有非常专业的表面性能的产品的能力,例如低成本,低密度聚乙烯模制的产品 特氟隆的表面特性。

    Method for use of pattern transfers in rotomolding
    3.
    发明授权
    Method for use of pattern transfers in rotomolding 失效
    在滚塑中使用图案转移的方法

    公开(公告)号:US4519972A

    公开(公告)日:1985-05-28

    申请号:US495754

    申请日:1983-05-18

    摘要: There is disclosed a method for imparting a decorative or printed pattern to the surface of rotationally molded products during their manufacture. In this method, the decorative patterns are formed on a sheet film transfer as a coating of pigments dispersed in a hydrocarbon wax which overlays a release agent, such as a silicone coating on the sheet film. The decorative wax pattern is applied to a preselected area of an inside wall of the rotational molding cavity by positioning the transfer against the surface of the wall and burnishing the pattern onto the interior wall of the mold cavity. Thereafter, the particulate molding resin is charged to the cavity and the product is molded in a conventional procedure, resulting in transfer of the pattern as pigments incorporated into the resin, with most of the wax surfacing and being excluded from the product.

    摘要翻译: 公开了一种在其制造过程中将旋转成型产品的表面赋予装饰或印刷图案的方法。 在这种方法中,装饰图案是以分散在碳膜蜡中的颜料涂层形成在薄膜转印上的,该蜡是与片状薄膜上的硅氧烷涂层等脱模剂重叠的。 通过将转印定位在壁的表面上并将图案抛光到模腔的内壁上,将装饰蜡图案施加到旋转模制腔的内壁的预选区域。 此后,颗粒状模制树脂被加入到空腔中,并且以常规方法模制产品,导致作为颜料掺入到树脂中的图案转移,大部分蜡堆积并被排除在产品之外。

    Method for printing and decorating products in a rotomolding process
    4.
    发明授权
    Method for printing and decorating products in a rotomolding process 失效
    在滚塑过程中印刷和装饰产品的方法

    公开(公告)号:US4252762A

    公开(公告)日:1981-02-24

    申请号:US971925

    申请日:1978-12-21

    CPC分类号: B44C3/046 B29C41/04 B29C41/20

    摘要: There is disclosed a method for the imprinting and decorating rotomolded products. The method comprises the application to the interior surfaces of the mold of a viscous suspension of pigment in a preselected pattern. The suspension is applied to the mold surface in an oil carrier using a vegetable, animal or mineral oil that is inert under the molding conditions and that has a sufficient viscosity at the molding conditions to maintain the film on the mold surfaces. The pattern of the pigment suspension is applied by spraying, brushing, screen printing and the like and, after its application, the conventional rotomolding can be practiced. In this method, the powdered plastic, typically high density polyethylene, in powder form is charged to the mold, the mold is closed and placed in an oven heated to from 500.degree. F. to about 800.degree. F. while rotating the mold along two axes, to tumble the plastic powder against the heated side of the mold where the powder consolidates into an integral molded wall of a plastic shape. The invention provides a very high line or character definition preferably using finely subdivided pigments.

    摘要翻译: 公开了一种用于印刷和装饰滚塑产品的方法。 该方法包括以预选图案将颜料的粘性悬浮液应用于模具的内表面。 使用在成型条件下为惰性的植物,动物或矿物油将悬浮液施加到油载体中的模具表面,并且在成型条件下具有足够的粘度以将膜保持在模具表面上。 颜料悬浮液的图案通过喷涂,刷涂,丝网印刷等施加,并且在施用之后,可以实施常规的滚塑。 在这种方法中,将粉末状塑料(通常是高密度聚乙烯)粉末形式加入到模具中,将模具关闭并放置在加热至500°F至约800°F的烘箱中,同时沿两个旋转模具 将塑料粉末压在模具的加热侧上,其中粉末固结成塑料形状的整体模制壁。 本发明提供非常高的线或字符定义,优选使用细分的颜料。