JPH08199455A - Braid for net, production of net using the same and net having bulkiness - Google Patents

Abstract

PURPOSE: To readily prepare a net having a soft touch with bukly parts by properly forming the bulky parts for each of meshes. CONSTITUTION: This net is obtained by netting braids 1 having a mesh part 4 prepared by knitting braid yarns 3 having a lower shrinkage factor than that of a core part 2 into a reticulated form around the core part 2 and providing bulky parts 5 having each bulged mesh part 4 on the outer periphery of the core part 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a braid for obtaining a net having a net-like bulkiness, a method for producing a net having a net-like bulkiness, and a net obtained by the method.

[0002]

2. Description of the Related Art Conventionally, there is a braid with a mesh-like outer peripheral surface as a kind of thread product used not only for fishnets but also for various purposes. This is schematically shown in FIG. 4, and a braid 1 is provided with a mesh portion 4 formed by braiding a plurality of braided yarns 3 around a core portion 2 made of a plurality of strings. When the mesh portion 4 itself is contracted in the length direction, the mesh portion 4 swells to have a bulky shape, and as a result of the bulkiness, the braid as a whole is soft to the touch, Attempts have been made to provide bulkiness even in the state of netting using this braid.

[0003]

When the above braid has a net-like bulkiness, both ends of the core 2 of the braid 1 are fixed and the braid 3 on the outer periphery is fixed, as shown in FIG. That is, the bulky portion 5 is obtained by pushing back the mesh portion 4 to an arbitrary length. However, the exposed portion of the core portion 2 becomes unnecessary and must be processed, which is uneconomical.
Further, even if an attempt is made to obtain a bulky portion in a long span, there is a problem in that the bulky portion may be concentrated in some places in the span. Furthermore, when knitting, it is impossible to provide bulky knots corresponding to the mesh eyes.
Therefore, it was not possible to obtain a net having a bulky portion.

In view of the above circumstances, the present invention has an object to appropriately form a bulky portion for each mesh, and an object thereof is to easily manufacture a net having a soft contact with the bulky portion.

[0005]

The present invention has been made in view of the above problems, and has a mesh portion around a core portion, which is formed by knitting a braided yarn having a heat shrinkage ratio smaller than that of the core portion in a mesh shape. The present invention provides a braid for a net. Further, another invention is a method for manufacturing a net, characterized in that a net formed by knitting the braid for the net is heated to heat-shrink the core portion. Provide,
The above problems are solved. Yet another invention is to braid a braid having a mesh portion formed by knitting a braided yarn having a heat shrinkage smaller than that of the core portion in a mesh shape around the core portion, and the mesh portion is provided on the outer periphery of the core portion. A net having a bulk, which is characterized by having a bulging bulky portion, and a net having the bulk is provided to solve the above problems.

[0006]

In the present invention, in a braid having a mesh portion formed by braiding a braided yarn having a heat shrinkage smaller than that of the core portion in a mesh shape around the core portion, by heating the braid, the core portion is separated from the mesh portion. It will shrink greatly in the length direction. Then, since the braided mesh is heated by the braid, the core portions are contracted, and the mesh portions between the knots of the mesh are inflated to form a bulky portion. Furthermore, since the bulky portion is provided in the mesh portion, the bulky portion first comes into contact when it comes into contact with a hand, and the inner side of the bulky portion becomes a space. The hit becomes soft.

[0007]

EXAMPLES The present invention will be described in detail based on the examples shown in FIGS. The parts having the same configurations as those of the conventional example shown in FIG. 4 and FIG. In the braid 1 according to the present invention, a thread 6 for gathering the core 2 is spirally wound around a core 2 made of a plurality of strings, and the circumference of the core 2 gathered by the thread 6 is further wound around. Further, a mesh portion 4 formed by knitting the braided yarn 3 in a mesh shape is provided. The heat shrinkage ratio between the mesh portion 4 and the yarn 6 is smaller than that of the core portion 2. By heating the braid 1, the core portion 2 is made to retain the mesh portion 4 and the yarn 6. Each material is selected so as to shrink more in the length direction of the braid 1 than the degree of shrinkage. FIG. 2 schematically illustrates a change caused by heating the braid 1 and greatly contracting the core 2.
(A) shows a state in which both ends of the braid 1 are heated without being fixed,
In (B), both ends of the braid 1 are fixed and heat-shrinked, and as shown in (B), the mesh portion 4 is contracted in the lengthwise direction by the contraction of the core portion 2. 4 expands in the radial direction of the braid 1 to form a bulky portion 5.

Next, a braided net is performed using the braid 1 before heating, and the net obtained by this braided net is heated to shrink the mesh portion 4 of the braid 1 at each eye portion. A net 7 having a bulky portion 5 is formed. FIG.
(A) shows the net 7'before knitting and heating, and (B) shows the net 7 after heating. As described above, the knitting net 8 using the braid 1 serves as a fixed portion, and when heat treatment is performed, the degree of contraction in the length direction of the core portion 2 between the knots 8 is determined by the length of the mesh portion 4 and the yarn 6. Since it is superior to the degree of contraction in the direction,
The mesh portion 4 and the thread 6 are contracted in the length direction by the core portion 2, and the mesh portion 4 expands in the radial direction of the braid 1 to form the bulky portion 5. The diameter and rigidity of the core portion, the braided yarn, the yarn, and the braided string are not limited, and may be appropriately selected depending on the selection of the material. In addition, the colors of the core, thread, and braid can be freely selected.
There is no limitation.

[0009]

As described above, according to the braid for a net of the present invention, the braided yarn having a smaller heat shrinkage ratio than the core is knitted in a mesh shape around the core. Since it is characterized by a simple operation of fixing and heating any part of this braid, the mesh part is expanded in the radial direction by utilizing the heat shrinkage of the core part and the bulky part can be easily Can be formed. Further, another invention is a method for manufacturing a net, characterized in that the net formed by knitting the braid for the net is heated to shrink the core part by heat.
A net having a bulky portion can be efficiently obtained by a simple operation of heating. Yet another invention is
A braided braid having a mesh portion formed by knitting a braided yarn having a smaller heat shrinkage ratio than the core portion in a mesh shape around the core portion, and a bulky portion formed by expanding the mesh portion on the outer periphery of the core portion. It is a net with a bulkiness characterized by having a bulky part in which the mesh part of the braid swells is provided at each eye part of the net, so that the feel of the net is soft In addition to being easy to handle, it is easy to put seeds in kelp aquaculture and the like, and it has excellent practical effects.

[Brief description of drawings]

FIG. 1 shows an embodiment of a braid for a net according to the present invention, (a) is an explanatory view showing a state before heating, and (b) is an explanatory view showing a cross section.

FIG. 2 is a view showing a state in which one embodiment is changed by heating, (a) is an explanatory view showing a case where both ends of the braid are not fixed, and (b) is an explanatory view when both ends of the braid are fixed. is there.

FIG. 3 shows a net obtained by braiding a braid, where (a) is an explanatory view showing a state before heating and (b) is an explanatory view showing a state after heating.

FIG. 4 is an explanatory view showing an example of a conventional braid.

FIG. 5 is an explanatory view showing a state in which the mesh portion of the conventional braid is compressed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Braid 2 ... Core part 3 ... Braided yarn 4 ... Mesh part 5 ... Bulky part 7 ... Net

Claims (3)

[Claims] 1. A braid for a net, comprising a mesh portion formed around a core portion by knitting a braided yarn having a thermal shrinkage smaller than that of the core portion in a mesh shape. 2. A method for producing a net, wherein the net formed by knitting the braid for a net according to claim 1 is heated to heat-shrink the core portion. 3. A braided braid having a mesh portion formed by braiding a braided yarn having a heat shrinkage smaller than that of the core portion around the core portion, and the mesh portion swells around the outer periphery of the core portion. A net with bulkiness, which is characterized by having a bulky portion.