JPS5831903Y2 - horizontally wound thread - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a horizontally wound yarn having a structure in which a wound yarn is tightly wound without gaps around the outer periphery of a plurality of core windings bundled in parallel.

Conventionally, this type of horizontally wound yarn has been manufactured by bundling a plurality of core yarns 1 made of inexpensive yarns approximately in parallel to form a core portion 2, as shown in FIGS. 1, 2, and 3. A thread 3 made of expensive silk thread or the like is tightly wound around the outer periphery of the part 2 from one side to the other, and is used as a decorative thread with a design effect.

However, with the above-mentioned conventional horizontally wound yarn, since the wound yarn is not fixed to the core yarn, the wound yarn tends to move and create dense areas and coarse areas of the wound yarn, and the winding is not necessarily wound at the cutting edge. Thread processing is required.

Moreover, if the winding thread is cut in the middle due to friction, the winding thread is likely to unravel at the cut point, making it unusable for machines with a lot of friction, such as torsion lace machines, or for handicrafts that involve friction. There are drawbacks.

This invention aims to solve the above-mentioned drawbacks, and a thermoplastic chemical fiber that has adhesive properties when heated is interposed between the core thread and the winding thread by winding it around the outer circumference of the core thread. To provide a horizontally wound yarn, characterized in that the above-mentioned thermoplastic chemical fiber exhibits adhesion performance to fix the outer wound yarn and the core yarn when heat-treated in any process such as a dyeing process. It is.

This invention will be explained in detail below with reference to embodiments shown in the drawings.

In FIG. 4, reference numeral 4 indicates an inexpensive core yarn, and a core portion 5 is formed by bundling a plurality of core yarns 4 substantially parallel to each other in the lateral direction in the figure.

Reference numeral 6 denotes an inner thread of thermoplastic chemical fiber such as Nylin, which exhibits adhesive properties when it reaches a predetermined high temperature, and is tightly wound once in the longitudinal direction from one side to the other around the outer periphery of the core 5. are doing.

Reference numeral 7 is an outer yarn made of a heat-resistant fiber such as silk thread, which is expensive and has a decorative effect, and which does not lose its shape at the bonding temperature of the inner yarn 6 of the thermoplastic chemical fiber; It is wrapped around the outer periphery of the string 6 tightly once.

Therefore, the outer periphery of the core portion 5 is wound twice with an inner yarn 6 made of thermoplastic chemical fiber and an outer yarn 7 made of heat-resistant fiber.

When the yarn with this structure is heat-treated in the dyeing process or any other process, when the inner yarn 6 of the thermoplastic chemical fiber is heated to a temperature at which it exhibits adhesive properties, the inner yarn of the thermoplastic chemical fiber The surface of the thread 6 is bonded to the adjacent inner core yarn 4 and the adjacent outer winding yarn 7 of the outer heat-resistant fiber, and the three are firmly fixed.

At the same time, adjacent core threads 4 and outer threads 7 of heat-resistant fibers are bonded to each other via inner threads 6 of thermoplastic chemical fibers.

At this time, the outer peripheral surface of the inner thread 6 of the thermoplastic chemical fiber 6 melts and adheres to the outer thread 7 and the core thread 4, but it does not lose its shape at all and maintains its thread shape.

However, the entire part may be melted and the portion where the inner thread 6 is placed may form an adhesive layer.

Note that the upper heat treatment may be specially performed.

In the horizontally wound yarn with the above structure, the core yarn and the outer wound yarn are bonded to each other by the inner yarn made of thermoplastic chemical fiber, so the outer wound yarn cannot be moved and maintains a uniform and densely wound state. can.

In addition, the winding yarn does not come off at the cutting opening, so there is no need to process the winding yarn.

Furthermore, even if the outer thread is subjected to friction and is cut in the middle, the outer thread and inner thread will not come undone from the cut part, which can be used in handicrafts where friction occurs and on river rail machines. It has the advantage that it can be suitably used for various purposes, and the range of use can be expanded.

[Brief explanation of drawings]

Figure 1 is a side view showing a conventional horizontally wound yarn, Figure 2 is a sectional view taken along the line ■■-■■ in Figure 1, Figure 3 is a sectional view taken along the line III in Figure 2, and Figure 4 is a sectional view of this invention. 5 is a longitudinal sectional view of FIG. 4, and FIG. 6 is an enlarged view of the main part of FIG. 4. 4... Core thread, 6... Inner thread of thermoplastic chemical fiber, 7... Outer winding thread of heat resistant fiber.

Claims (1)

[Scope of utility model registration request] An inner thread made of thermoplastic chemical fiber such as nylon is tightly wound around the outer periphery of a core made by bundling multiple core threads in parallel, and an outer thread made of heat-resistant fiber is wound around the outer periphery of the inner thread. This is heat-treated and the core yarn and the outer yarn of the heat-resistant fiber are bonded to each other with the inner yarn of the thermoplastic chemical fiber, and adjacent parts of the core yarn and the outer yarn are bonded to each other. Winding thread.