SU1621844A1 - Shoulder lap facing for clothes - Google Patents

Abstract

The invention relates to the apparel industry, in particular to the manufacture of shoulder pads for clothes, and makes it possible to increase the strength of the fastening of the package of the shoulder pad while maintaining its shape. The shoulder pad for clothes is made in the form of a package bonded to each other by needling by punching the upper and lower layers of the nonwoven material. and placed between them filler. The nonwoven material of the top layer of the stack has a bulk density of 0.013 to 0.015 g / mD fiber length is in the ratio of 1.2 to 1.5 to the thickness of the bag. 3 ill., 1 tab.

Description

The invention relates to the clothing industry, namely to the manufacture of shoulder pads for clothing.

The purpose of the invention is to increase the strength of the package of the shoulder pad while maintaining its shape.

FIG. 1 shows a package lining in the flooring; in fig. 2 - flooring, held together by needling; in fig. 3 - shoulder pad is ready, general view.

The shoulder pad consists of an upper layer 1 formed in the air flow from fibers with a bulk density of 0.013-0.015 g / m recovered from the waste retained in the canvas by grip, from a gasket 2 — a filler from a bulk material, for example foam rubber, from the bottom layer 3 - stitched fibrous material.

The shoulder pad was obtained as follows.

The production of the lining is carried out on a production line, which includes equipment: a carding machine with an aerodynamic transducer, a batt, a conveyor for picking up the package of the lining and its transportation, a needle punching machine, a cutting machine.

The raw material used is a pulp consisting of recovered wool fibers 18-20 mm long. The fibrous mass is supplied to the feeder of the carding machine, from where the separated and combed fibers are transferred by air flow to the aerodynamic converter capacitor, where they are formed into a fibrous canvas with a bulk density of 0.013 g / m3. The scrim thus obtained enters the conveyor, where it is formed into a bag, forming the top layer of the lining. At the same time, reinforced non-woven material enters the conveyor from the roll, forming the lower layer 3 of the lining, and the foam blanks are laid forming the gasket 2. The overall thickness of the package is

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lt is 16 mm. The formed bag is conveyed to the needle punching machine, where all the layers of the shoulder pad are attached. Bonded layers are fed to the cutting press, where the cutting of the slips takes place in pairs. Due to the design of the cutter, the plates have a connection between each other of 0.6 cm, which creates convenience for their installation and transportation.

In the shoulder pad consisting of the upper and lower layers of non-woven material, between which is placed a filler from bulk material and fastened together by needle punching method according to the invention, the upper layer of the bag formed in the air flow with a bulk density of 0.013-0,015 g / m3, consists of fibers recovered from waste that are randomly oriented and held in the canvas by grip, and the length of the fibers is in the ratio from 1.2 to 1.5 to the thickness of the package.

The bonding strength increases as the fiber length increases with respect to the thickness of the overlay package. However, such an infinite increase leads to undesirable effects - nodules are formed on the front side of the lining, which negatively affects the quality of the lining and the reliability of bonding, since when needle is broken, the needles often fall on the knots, resulting in the destruction of the structure of the stitched layer.

The reliability of bonding of the lining is also affected by the physical state of the fibers of the upper layer, consisting of loose, randomly oriented fibers with a bulk density of 0.013-0.015.g / m3. With a decrease in bulk density below the limit of 0.013 g / m3, the stability decreases

mechanical stress, which leads to disruption of the structure of the canvas when it is placed in a bag, and with increasing bulk density limit

0.015 g / m3, the height of the layer of a vatin-like material increases, the necessary condition of the puncture increases and the number of nodules on the face of the lining increases, which, in turn, affects

quality and reliability of the shoulder pad fastening.

As samples, 50x200 mm bags, sewn with needle-punching, are taken. Test data are summarized in

the table.

The table shows that for each type of fiber, the delamination force increases with increasing ratio, where L is the fiber length, t is the thickness of the package of the lining. But at a certain ratio, simultaneously with an increase in the delamination force, an undesirable effect appears- the formation of nodules on the front surface

lining, affecting the quality of garments during the final WTO operation, as well as the reliability of the bonding of the shoulder pads.

thirty

Claims (1)

Invention Formula A shoulder pad for clothes, made in the form of a bag of upper and lower layers of nonwoven material fastened together with a needle-punching and a filler disposed between them, characterized in that. in order to increase the strength of the package while maintaining the shape of the shoulder lining, the nonwoven material of the upper layer of the package has a bulk density of 0.013 to 0.015 g / m3, and the fiber length is in the ratio of 1.2 to 1.5 to the thickness of the package. Polyacrylonitrile fibers Nitron fibers 28.0 1-2 9-11 5-6 2-4 12-16 7 0.73 0.71 0.69 0.68 0.67 0.62 0.6 0.59 0.57 1.2 1.15 1.1 1.05 1.02 0.99 0.98 0.96 0.94 0.91 0.89 0.88 0.87 0.85 0.82 0.8 1.31 1.29 1.24 1.2 1.18 1.14 1.1 1.05 1-3 11-16 6-8 3-5 15-17 o you with x SP with 00 l l 1 I Figure 2