CS218472B1 - A method for producing textile hats and caps - Google Patents

Abstract

The invention relates to a method of manufacturing hats and caps by one-time shaping from two layers of flat fabric, between which a thermoplastic support grid made of mutually intersecting synthetic fibers glued at the points of mutual contact is inserted. Shaping of the layers arranged in this way is carried out under the influence of heat and pressure. The lower layer of the fabric consists of a knitted fabric, which is provided with a point coating of fusible granules on the back side, the upper layer again consists of a knitted fabric of a suitable design and color. All three layers are heated at a temperature of 120 to 190 ° C for 20 to 60 s, then they are shaped on cold molds with a pressure of 0.3 to 0.6 MPa for 30 to 60 s. This results in both the interconnection of all layers and the fixation of the obtained shape during pressing, which shows both the head of the future final product and the desired edge. After removing the excess part of the Edge, the product is finished in the usual way.

Description

218472

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a process for the manufacture of hat and hat articles by one-time molding from two sheets of fabric, through which a thermoplastic grid is formed, made of mutually interconnecting synthetic fibers bonded in intersection locations. The shaping of such arranged layers into the product is effected by the action of heat and pressure, the bottom layer of the fabric being rubbed off by a spot coating of granules of thermoplastic material, which ensures the interconnection of all three layers. the product of the desired quality, a suitable tint and color.

The molded part is in the form of a finished product, that is, it contains a top of the top or a cap with an appropriate edge. The finished product obtained is already finished and decorated in a conventional manner.

There is known a process for the production of fabric-coated fabric hats and a thermoplastic support grid, which consists in the fact that the thermoplastic grid formed by cross-linking the polypropylene lines abutted at the points of contact with one another is poured out into the shape of a hat head after heat and stabilizes in shape. on cold metalform. Such a molding is sprayed with glue, placed in the press again, and a sewn-on fabric is placed in front of the cut parts, the shape of the hat is approximate. Hot pressing combines the top fabric with the support grid.

In this way, a hat head is made which, after cutting, has to be stapled with a pre-eared edge of the hat, which is also reinforced with a supporting grid or stiffening material. This is followed by the final shaping of the whole hat, ie the head and the rim, where the hat is decorated and made in the usual way.

This labor-intensive and technologically demanding process has been improved by the solution according to the CSSR author's certificate number 182 884, whereby the hat head is pressed from one of the fabrics so that the need for a fabric head is eliminated. This achieves a productive production of the header and an improved aesthetic appearance that previously disrupted the seams. However, all the processes described so far require the shaping of the head and the rim separately by pre-pressing the support grid, the adhesive coating, the stitching of the head and the edge and the final pressing of the finished product.

There is also known a method of making hats according to the Czechoslovak Social Security Certificate No. 182 586 from textile formations containing live fibers. The essence of the solution is that needle-punched textiles containing at least 20% of chemical precipitating fibers, namely non-heat-treated and / or partially fixed, are used as a textile fabric. The textile formation is then fixed at 190 DEG-280 DEG C. during spatial shaping. The shaping of the textile formation is carried out either by precipitation of at least partially non-precipitated fabric on a heated mold or by molding a heated precipitated fabric with a cold seal. and matrix. The aforementioned drawbacks are eliminated by the method of making textile hats and caps according to the invention, which consists in pressing the entire hat or cap, i.e. the head including the outer edge, from three layers of the sheet material at the same time. The topsheet is a tensile web of a suitable tread pattern and color pattern for headgear. The intermediate layer is formed by a thermoplastic support grid made of hot-mouldable synthetic material lines. The back layer is again a pull-knit fabric of a similar character to a top layer, but on the reverse side it is covered with PVC granules. The three layers thus folded are heated at a temperature of 120 ° C to 19 ° C in the form of 20 to 60 s and the softened material is poured on cold molds into the headgear. Pressing is carried out at a pressure of 0.0 to 0.6 MPa for 3 to 60 s.

By warming and pressing, the PVC granules melt and ensure a perfect bonding of the three layers, with the support grid providing the desired product shape. Excessive fringed headgear is trimmed, edge edged, and trimmed in the usual way.

Further details of the method of manufacture of the invention and its advantages are set forth in the examples. Přikladl

The 40 X 42 cm pedal press clamping frame clamps an elastic polyamide silk knit, which is deposited by spot granulation of PVC-Platamid type 400 P-260. ·

A thermoplastic mesh made of softened PVC, type Miraviten, is clamped onto this knit.

The clamping frame is inserted into the heating chamber of the press for 4: 0 sec at a temperature of 180 ° C. The three-layer heated clamped material is molded on cold metal molds for 60 seconds at a pressure of 0.4 MPa. In this molding process, all three layers are bonded to melt the granules to form the desired shape of the hat or cap, including the edges and fixation of the shape. The excess of the edge is trimmed, the edge bounded, and the article finished in a conventional manner. Example 2

The process is the same as in Example 1 except that the bottom granulated knit is

Claims (1)

218472 material and delze identical to the upper knit, so the top and bottom of the klo-bouk are the same in design and color. EXAMPLE 3 The process is the same as in Example 1, with the object of producing textile hats and cups from at least one surface film layer and a flat thermoplastic support grid by one-time heat and pressure forming, wherein the thermoplastic support grid made of mutually intersecting a synthetic fiber bonded at the point of contact, characterized in that the lower layer of the fabric formed by the knitted fabric is scored from the reverse side by a pointed melt granule and a grid of thermoformable synthetic fibers is placed on this side of the knitted fabric which is covered by the top layer fabrics formed by a knitted fabric, the difference being that, prior to molding on cold-sheet molds, the heating and joining of the three layers of material is carried out in a hot press at 170 ° C, a pressure of 0.4 MPa and a form of 40 s, so that higher weight materials can also be processed. DISCLOSURE OF THE INVENTION in a color and de-ink suitable for the final product, wherein the composite layers of the material are heated in a stretched surface or heated and, during heating of the preform, for 20 to 60 s at a temperature of 120 to 190 °. the molten granules interconnect all the three layers, whereupon they are molded at a pressure of 0.3 to 0.6 MPa into the shape of the final product comprising the hat or cap head and the edges and furthermore formally fix the cooling after the excess portion of the o the edge of the border shall be placed upon it, and the product shall finish;