Bead string

Abstract

A bead string includes a thread element and multiple beads firmly attached to the thread element; each bead containing one or a plurality of inner layer and one or a plurality of first outer layer; both of the inner layer and the first outer layer of the bead being molded by respectively injecting two different types of plastic material into a first cavity and a second cavity; one or a plurality of thread element passing through the first cavity; the second cavity accommodating the thread element and the inner layer of bead; and the first outer layer tightly covering up entire portion or a certain portion of the inner layer to correct defectives of a finished product found with the prior art while significantly simplifying manufacturing process and saving time and cost.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention is related to a bead string, and more particularly, to a thread element covered with multiple beads with each molded by injecting plastic material into different mold cavities to deliver clearly defined color gradations and versatile changes in color and style of beads firmly fastened to the thread element.[0003]2. Description of the Prior Art[0004]Referring to FIG. 1 of the accompanying drawing for a configuration of a bead string of the prior art, a bead string (9) is comprised of a thread element (91) and multiple beads (92). Generally the thread element (91) is made of cotton and the bead (92) is plastic material injection molded. In the injection molding process, plastic materials of different colors or transparencies are injected by layer to form the bead (92) in multiple layers of plastic material. As illustrated, the bead (92) is comprised of an inner layer (921) and an outer layer (922); a...

AI Technical Summary

Benefits of technology

[0007]The primary purpose of the present invention is to provide a bead string comprised of a thread element covered up with multiple layers of plastic material. Versatile changes in appearance and color are achieved to upgrade appreciation interest and artistic value of the bead string by injecting multiple types of plastic material in different colors or transparencies depending on each of multiple different cavities.

Problems solved by technology

However, the manufacturing process of the bead string (9) of the prior art consumes lengthy time since it takes to pass the thread element (91) through the bead (92) via the through hole (923) and tie a fast knot all by manual; any human error in the intervals among those beads (92) could affect symmetry and aesthetics of the bead string (9).

Images