DE2164252A1 - PROCESS FOR THE PRODUCTION OF HOOK-LIKE POLES WITH EXTENDED HEADS - Google Patents

Description

DR. ING. E. HOFFMANN · DIPL. ING. W. EITLE DR. RER. NAT. K. HOFFMANN

PATENT LAWYERS D-8000 MÖNCHEN 81ARABELLASTRASSE 4 TELEPHONE (0811) 911087

Yoshio Chiba, Osaka / Japan

Process for the production of hook-like poles with

vast minds

The invention relates to a method for Manufacture of separable fastening material for a fastener for fastening material and in particular on a method for the production of hook-like poles with extended heads on a base material of a fastener for fastening fabric.

Fasteners, which are circular with upright Pole elements having extended head ends are known. In Pig. 7 is an example

309826/0180

a conventional closure shown in which the bead-shaped pole elements are separable with on the opposite side of another fabric 18 formed loops I9 are connected. So far are such pearly pile elements by directly heating the tips of the upright elements and through Melts or tops have been made. However, the poles melt and dissolve when the temperature rises is too high while the surface of the base fabric damaged. If the -warming is not enough, the pearl-shaped head becomes too small or -not at all educated. In addition, if the heat is excessive, the poles char slightly, the inner structure of the threads is brittle and the pearl-shaped head is slightly pulled down will. In addition, when closely observed, it is found that the melted part is apart flows and solidifies in a deformed state, like a melted candle, and consequently a deformed, expanded head is formed, its connection with the loops on the other fabric is too strong, so that when the fabrics are separated, the loops often tear, while the expanded head damaged. The aim of the invention is to eliminate these shortcomings.

In particular, it is an object of the invention to provide an improved method of making a fastener to create with a pole element with a pearl-shaped head, with the Pole tips a liquid layer located under the poles on the surface of the base fabric, causing the

309826/0180

Above mentioned deficiency can be eliminated.

Further details of the invention are to be explained and described in more detail below, reference being made to the accompanying drawings.
Show it:

Fig. 1 is a schematic view of the execution the device determined by the method according to the invention;

Fig. 2 is an enlarged schematic view of a deformation device in the device;

3 shows an enlarged section through part of a double-layered material;

Figure 4 is an enlarged section through part of a separate poled fabric;

Fig. 5 is a schematic sectional view of the with poles provided fabric;

6 is a schematic sectional view showing the formation of the bead-shaped head when heated State shows and

7 shows a section through the closure.

In Fig. 1 the device for carrying out the method according to the invention is shown. The device

- 4 -309826/0180

comprises a conventional weaving device 20 for weaving a double-woven fabric 10 *, a bleaching device 30, a heater 45, a puller 50, a cutter 60, and a pair of devices 70 for deforming. The weaving device 20 includes a pair of rollers 21, 22, one of which one is a twisted cotton thread and the other is a thread made of thermoplastic material holds. The two yarns discharged from the rollers become the conventional one by a pair of guide rollers 23 Forwarded weaving mechanism 24, on which they are woven into a double-woven fabric 10 *. As As shown in Fig. 3, this comprises a double-woven fabric 10 * a pair of lace or fabrics 10 composed of warp threads 12 and weft threads 13 and upright poles 14 interconnecting the seats, the poles 14 being different from that held by the roller thermoplastic thread are formed.

The bleaching device 30 comprises a device 31 for bleaching, a device 35 for neutralizing and a device 39 for washing. The device 31 for bleaching consists of a tank 32, which one contains suitable bleach solution, and with a plurality of guide rollers 33 and a pair of rollers 34 for Pulling is provided. The device 35 for neutralizing consists of a tank 36, which is a neutralizing Solution contains and with a plurality of guide rollers 37 and a pair of rollers 38 for Pull provided 1st. The device 39 for washing consists of a tank 40 which contains water and with a plurality of guide rollers 41 and a pair of rollers 42 are provided for pulling. The one from the web

309826/0180

- Device double-woven fabric 10 is fed through rollers 26, 27, 28 and 29 to the bleaching device 30 forwarded, and then bleüit.

The heater 45 includes a pair of Heat sources 46 which are arranged at a distance from one another so as to have one between them To form passage. The heater 45 heats the upper and rear sides of the double Substance which is passed through the passage of the heating device.

The enrobing device 50 comprises a pair of rotating brushes $ 1 and two groups of rollers 53 for feeding, each group of these rollers being intended to supply a binding solution located in a tank 52 to the corresponding brush 51. Thus, as the double-woven fabric 10 * is passed through the brushes 51, the binding solution is applied to the outer surface of the fabric, thereby forming an outer, binder-containing layer 15 (Pig. 5) and securing the poles 14 to a base of a separate with Pole provided fabric 10, which will be described below, is connected. The binding solution is preferably an instant drying one, such as

a quick-drying binding agent, which is suitable for the binding solution is suitable.

309826/0180

The double-woven fabric 10 is then divided in half by a knife 61 of the cutting device 60, the knife reciprocating in the horizontal direction. Thus, the double-woven fabric 10 ^{T is divided} into fabrics 10 having separate piles. Then each of the separated poles 10 is guided via guide rollers 62 to the corresponding device 70 for deformation.

Each of the deforming devices 70 includes a mechanism A for supplying water to the separated fabrics 10, means B for melting of a point of each pole 14a to form a pearl-like or mushroom-like head, which in FIG 11a is designated, means C for drying the fabric 10 and means D for winding the finished fabric.

The mechanism A for supplying water comprises a container 71 containing water 75 with a Roll 75. The disconnected poled fabric 10 is drawn into the water and moved out of it by rollers 72, 73 and 74, with a Water layer 75 * under the protruding poles 14 forms, as can be seen in FIG. Sodium sulfate is preferably used in an amount of 25 cnr to 50 liters of water added, which prevents the fabric from later changing its color due to oxidation. The role 74 is covered by absorbent material, such as urethanes, which creates the on the back surface of the fabric 10 located water is absorbed.

The one with the water layer 75 * under the poles

- 7 309826/0180

I4a provided fabric 10 is then on a slideway 76 of the device B for melting where the substance 10 is then heated by an infrared heater 77 will.

Behind the slide 76, the fabric 10 is from a drive roller 81 is pulled at a constant speed in the direction of the arrow, the drive roller 81 driven by a motor 82 through an endless chain 85 will. The infrared heater 77 contains a downwardly open housing 78, a gas burner 79 in the housing and a wire mesh 80, which is arranged under the gas burner 79, the top of the Poles 14a of the fabric 10 on the sliding track 76 is heated by radiant heat, in order to thus create the pearl or to form mushroom-shaped head 11a. As shown in Fig. 6, the water layer or moisture evaporates under the Poles gradually due to the radiant heat of the infrared heater 77 and the tips of the poles 14a protrude from the Water layer 75 * out as far as the latter has evaporated and these protruding parts are melted, to form bead-like or mushroom-like heads 11a. Consequently, many can be engaged Poles 11 with pearl or mushroom-like heads 11a can be formed on the surface of the fabric 10, as in FIG 7 shown.

It is obvious that the size of the pearl- or mushroom-like heads can be changed by changing the size of the Infrared heater 77 coming heat value can be formed.

- 8 309826/0180

The connecting pole fabric 10 is then fed through a roller 9I to the Pulling and forwarding via rollers 85, 86 and 87 to the device C for drying, the roller 91 by an endless chain 92 with the drive roller 81 is connected. The device C for drying comprises an electric heater 92, which a plurality of heat sources 92a and a conventional one .Blower dryer 95 has. After this The fabric or the finished article is dried on a roller 95 of the device D for winding wound up. The roller 95 is provided at one end with a sprocket 100, which by a Pinions 97 »Reduction gears 98, 96 and one endless chain 101 is connected to the drive roller 81. For the automatically controlled winding speed of the roller 95 for winding is a device 102 between the roller 95 and the sprocket 100 is provided so that the winding speed is restricted in proportion to the increase in the winding volume will.

A suction line is located above a frame 70a of the deforming device 70, which is open at the top 110 to evacuate the steam generated in frame 70a.

While the invention has been illustrated and described herein with reference to a preferred embodiment is, it should not only be limited to this embodiment, but all substitute options, modifications and include equivalents falling within the scope of the invention as detailed in the following claim is outlined.

309826/0180

Claims (1)

- 9 claim ' Process for the production of hook-like poles with extended heads on a base material of a Fastener for fastening fabric, characterized in that a number of with free ends provided and made of thermoplastic, resinous material protruding Poles are formed on a surface of a base material that the base material turns into a liquid is immersed in a container and then moved out of the container, with a layer of liquid on the base material below the protruding poles that the base material then forms along a heating device guided and heated so that the surface of the base material on which the protruding Poles are located facing the heater, and that the protruding poles and the liquid layer are exposed to the heat given off by the heating device, so that the liquid layer evaporates and thus releases free ends of the poles and that, depending on the degree of evaporation of the liquid layer, the free ends of the poles melt.and themselves spread by surface expansion and thus formed poles with extended heads on the base material will. 309826/0180 Blank page