JPS5817634B2 - Tsumewatano Seizouhouhou - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing cotton wadding having good texture and physical properties.

Various studies have been conducted and proposals have been made to develop cotton padding with excellent texture and physical properties.

It is easily inferred from the structure of feathers that, in order to improve the texture and physical properties of a product, the degree of freedom of the constituent single fibers must be made uniform, and it is well known.

In this case, if an attempt is made to obtain a product by the conventionally used method of laminating card webs in parallel to make stuffing, the fibers will not intertwine with each other and the work will be impossible as the fibers will be separated.

Furthermore, if the entangling property is improved to a level that is easy to work with, no improvement in texture or physical properties will be seen and the objective will not be achieved.

The present invention aims to create a fiber mass by assembling a plurality of single fibers, increase the degree of freedom of the fiber mass, and improve the texture and physical properties.

Although structures and manufacturing related to the present invention have already been proposed, there are many problems in terms of product texture and commercialization.

For example, Japanese Patent Publication No. 39-3391 describes a method of opening fibers using a cotton opening machine and blowing air into a prepared bag to obtain stuffed cotton. Because the fibers are placed in the bag, the fiber density varies within the bag, making it difficult to stabilize the quality of the stuffed product.Due to the fact that it is not easy to change one bag, and the cotton opening machine is directly placed in the bag, the fabric weight may vary due to machine stoppages. is not stable.

There are problems such as.

In addition, there is a method for making stuffed products from feathers that has been commercialized, but as is well known, it still has problems such as variations in density and the inability to mass-produce.

Furthermore, as a prior art, there is a method disclosed in Japanese Patent Application Laid-Open No. 50-49054, but in this method, the entire centrifugal discharging device is inserted into the opening of the futon side fabric to blow the fibers, so the side fabric is relatively thick. It has the disadvantage of being limited in its versatility because it has to be of high quality.

The method also has the disadvantages that the equipment itself must be small, the production rate is low, and the density of the filled fibers is low.

The present invention is a manufacturing method that solves these problems, fully exhibits the structural effects obtained by the fiber mass form, and provides stable quality and easy workability.

The gist of this method is to open synthetic fiber staples, separate them into fiber lumps, and suck them with air. This is a method for producing cotton stuffing in which, without blowing the air, one side of the bag-shaped stuffing side material opposite to the opening is taken up at a constant speed, and a certain amount of synthetic fiber staples are put into the bag-like stuffing side material.

The method of the present invention will be explained in detail below.

Any synthetic fiber that can be used is effective, as long as it is a staple cut to a certain length, such as polyester, acrylic, or polyolefin.

In order to form a fiber mass, the cutting length is preferably 30 to 64 mm.

It is preferable that the fibers have a low massatu coefficient, and those having a coefficient of about 0.1 to 0.3 as measured by the radar method are effective.

There are many methods for opening fibers to form a fiber mass, but any method may be used.For example, in the case of raw cotton that has good spreadability, a method using a cotton opening machine or passing the fiber through a cotton opening machine after spinning through a card machine is acceptable. There are methods.

In order to obtain more independent fiber clumps, multiple passes through the opener are preferred.

The cotton lining must be open on almost one of the four sides.

Any type of side material can be used, but a relatively thin material is best in order to take advantage of the texture, and from a workability standpoint, a dense, rough material is preferred for air passage.

The side facing the side opening may be pulled off using any method such as rollers, air, levers, etc., but it is preferable to use a roller to stabilize the basis weight and density.

In order to obtain a constant basis weight density, the fiber mass must be drawn off at a constant speed in relation to the amount of fiber mass inserted into the side fabric.

After a certain amount of fiber is packed, the fiber supply is stopped.

Air, cotton opening machine. Even if either supply is stopped, the objective will be achieved.

. Further, the present invention will be explained with reference to the drawings.

FIG. 1 is a diagram showing an example of the method of the present invention.

A cotton opening machine 2 uses synthetic fiber staple raw cotton 1 weighed at a constant rate.
The fibers are supplied to the fibers and opened to form an aggregate 3 of fiber lumps.

The aggregate 3 is sucked from the air suction side 4 by the blower 5,
The air is released to the air release side 6.

The discharge side 6 is covered with a side cloth 8 having an open side on one of the four sides of the stuffed side cloth, and the fiber mass mixed with air is blown into the side cloth.

Air is blown onto one side of the side fabric facing the opening for a certain length by rollers 7, so that the portion packed to a certain density is sent out to the rollers and transferred onto the conveyor 9, completing the process.

In the conventional method, the density varied because it was affected by the air pressure from beginning to end until the entire amount was packed, but the method of the present invention can always obtain a product with a stable density.

Once one piece of stuffing is completed, raw cotton 1 and conveyor 10
to stop.

The finished cotton wadding is made into a product by closing the opening and quilting as appropriate.

The filling material 8 is again placed over the atte discharge port 6, the raw cotton 1 is supplied, the conveyor 10 is operated, and the work begins.

Next, one embodiment of the present invention will be described.

Example 0.4% by dry weight of dimethylpolysiloxane silicone 5RX-24-4 (manufactured by Tone Silicone ■) was applied to a polyester fiber staple 6 d x 51 mm, and after drying and curing, it was prepared as described in the text. 1
A trial futon was made by passing it through the machine according to the method of the present invention.

The conditions are as follows. 100 in operation before feeding to cotton opening machine
The fibers were completely opened by passing through a crI'L roller card machine.

The cotton opening machine is working 100C71L, 25 pieces/100Cr?
Circumference 300cm with L protrusion, speed 300m1m
It has a cylinder that is in.

Supply amount is 900 g/m1x0 blower is 3200rf
One 100mmAg presser was installed.

The side material is cotton satin, 150crIlx200cm, 150c
A sheet with one side of 1'IL open was used, the speed of the take-up roller was 1 m/mm, and the target basis weight was 1.8 kg/sheet.

On the other hand, as a comparison, we made a filling using a web using a conventional card machine.

That is, using the same raw cotton and carding machine as above, the raw cotton was opened into a web, which was manually inserted into the side of a 150 x 200 piece of cotton satin to form a filling weighing 1.8 kg (wadding weight) each.

As a result, the stuffed product produced by the method of the present invention had no variation in density within the sides, was sufficiently dispersed in the ends, and had a good feel.

In terms of physical properties, as shown in the table, a product with excellent thickness and resistance to settling could be obtained.

This seems to be because the opened short fibers are blown in using an air flow, so that the single fibers are arranged in all directions.

In addition, compared to conventional processing methods, the method of the present invention utilizes air flow and can be carried out in an integrated process from raw cotton to finished product.
Dogs are also effective in terms of labor savings.

Comparative Example 1 A stuffed object was made under the same conditions as in Example without using a take-up roller.

As a result, the central part of the side area was filled with a high density and a large amount of fiber, and the squares of the side area were hardly filled, resulting in a filling that was non-uniform and of no practical value.

Comparative Example 2 A stuffed body was made under the same conditions as in the example using the method disclosed in JP-A-50-49054, ie, using a centrifugal discharge device in which seven blowers each having a blade length of approximately 10 CrrL were arranged in parallel.

As a result, due to the low fiber supply rate, it took about 10 minutes to make one futon, which was significantly lower than the approximately 2 minutes in the example.

Furthermore, it was not possible to increase the packing density, and only about 1.5 kg/sheet of fiber could be packed.

[Brief explanation of the drawing]

FIG. 1 is a process diagram of one example of the method of the present invention. Explanation of symbols: 1... Raw cotton, 2... Cotton opening machine, 3... Fiber lump aggregate, 4... Suction duct, 5... ... Air blower, 6 ... Discharge duct, 7 ... Take-up roller, 8 ... Cotton padding, 9 ... Take-up conveyor, 10・・・・・・
··Conveyor.

Claims (1)

[Claims] 1. After opening the synthetic fiber staple and separating it into fiber lumps and suctioning with air, the opening of the bag-shaped stuffed cotton lining, which is open on almost one of the four sides, is opened to release the air. While inserting it into the outlet and blowing the air, one side of the bag-shaped stuffed cotton lining facing the opening is pulled out at a constant speed. A method for producing cotton wadding characterized by placing a certain amount of synthetic fiber staples inside a bag-shaped wadding material.