JPS5846161A - Novel padding material and preparation thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a novel filling material used in futons, pillows, cushions, cold-weather clothing, etc., and a method for manufacturing the same. Extremely soft, warm, light, bulky, and fits perfectly to the human body shape.
An object of the present invention is to provide a filling material with good recovery properties after compression.

Conventionally, various methods have been used to impart feather-like properties to batting materials by imparting a three-dimensional shape to batting fibers. The first method is to give the fibers a crimped or corrugated shape, but the disadvantage of batting made of fibers obtained in this way is that the compression recovery of the batting decreases due to entanglement of the fibers due to repeated use. be. In order to prevent this drawback, methods of bonding the points between fibers have been considered, but
If this is done, the filling will become stiff and will have poor fit to the body shape. On the other hand, it may be possible to use a silicone smoothing agent to impart softness, but this would improve the fit to the body shape, but would result in poorer compression recovery.

The second method is to create internally low-density spherical bodies from fibers and use them as batting, but repeated use of the batting causes the spherical bodies to become entangled and break, reducing the effectiveness. In order to prevent this, methods have been considered to use adhesives or low-melting point fibers to bond the points between the fibers, but no satisfactory results have been obtained, and in the end, the As a result, they had no choice but to rely on feather blends. Furthermore, a third method is to centrally integrate a plurality of short fibers at a binding site,
The non-concentrated ends of the short fibers are used as swollen and diffused tufts in the batting, but when such batting is used repeatedly, the tufts become entangled with each other, and due to the penetrating nature of the short fibers, the bulkiness of the batting increases. It's going to decline. □ In order to clarify the above-mentioned drawbacks of the prior art in comparison with feathers, the shape of feathers will be described.

Feathers are divided into feathers and subspecies, and feathers have separate shafts with barbs on both sides, and barbules on either side. The subdivision has a nine-betsu axis as its core, from which barbs radiate out, and barbules further emanate to the left and right of it. The thickness decreases in the following order: separate axis, barbules, and barbules. The softness of the feather is due to its thin barbules and barbs, its good recovery after compression is due to its thick separate shaft, and its fit to the body shape is due to its thin barbs and barbs. This is due to the fact that the branches are derived from each other, preventing them from penetrating between the feathers, allowing them to move independently as small pieces, and because this penetrating property is impeded, the feathers do not easily sag after repeated use. is small. The warmth is due to the air retention of a single feather due to the structure of the feather, and the large air retention of the feather as an aggregate due to the impediment of penetration, and the bulkiness is also due to the same reason. It is inferred.

As mentioned above, attempts have been made to develop batting that has a feather-like condition, but the results have been unsatisfactory because the special morphology of feathers has been ignored. The present invention provides a batting material that approximates this special form and a method for manufacturing the same.

That is, the present invention provides a batting having a feather-like branched structure consisting of short fibers B, which are flocked to a thread-like or cloth-like base material A with an adhesive, and short fibers C, which are further flocked to the short fibers B with an adhesive. It relates to materials and their manufacturing methods.

The present invention will be explained in detail below.

To explain the present invention with reference to the embodiments shown in the accompanying drawings, an adhesive l is applied to a base material A, one cut surface of a plurality of short fibers B is adhered to the base material A in parallel to the base material A, and the short fibers The method consists of attaching an adhesive to the surface of short fiber B, then adhering one cut surface of short fiber C to the surface of short fiber B, and then cutting base material A.

Depending on the morphological type of the substrate and the cutting relationship of the substrate, the substrate A corresponds to a different or redundant axis of the feather.

That is, by using monofilaments aligned on base material A, short fibers B and C are formed without each monofilament being aligned in contact with the adjacent monofilament and without each monofilament being bonded with an adhesive.
After planting the fibers on both sides of the monofilaments arranged in parallel, the monofilaments are cut to the same length as the blades, and the base material A becomes a portion corresponding to another shaft. On the other hand, in the above method, after flocking only one side, cut the monofilament into several fins, or use a nonwoven fabric as a base material, and after flocking on one side, cut the nonwoven fabric into several squares in the shape of a substrate. The base material A corresponds to the original axis.

The flocked short fibers B correspond to barbs, and the short fibers C correspond to barbules, respectively, to produce feather-like batting.

The length of the base material A corresponding to the separate axis is preferably about /-101, although the purpose of the present invention is to approximate the shape of a feather and obtain feather-like compression characteristics and fit to the human body.
If the length is longer than this, the different shafts may become entangled with each other during repeated use as filling for a futon, which is undesirable. For the same reason, the length of fibers A corresponding to barbs is preferably in the range of Qj to 31, and the length of fibers B corresponding to barbules is approximately QO/-0JCIi for the purpose of preventing interpenetration of feather-like pieces. is an appropriate nickname.

However, in the present invention, the lengths of the base material A1 fibers B and fibers C are not specified. This is because, in the present invention, it is possible to obtain feather-like characteristics by varying the length, but it does not preclude obtaining characteristics other than feather-like characteristics. For the same reason, the denier and flocking density of the fibers used are not regulated.

Although the angle between the base material A and the fiber B is not particularly limited, it is preferably 30-100 in order to improve the fit to the human body, that is, to impart feather-like properties.

The above-mentioned angle can be given by applying pressure between heated rollers at a temperature suitable for the fibers used after flocking, or by changing the angle between the flying direction of fiber B and the base material A during electrostatic flocking. It is.

As described above, monofilaments and nonwoven fabrics can be used as the base material A, as well as spun yarns, multifilaments, woven fabrics, knitted fabrics, net-like materials, tows spread out in a plane, tops, etc.

The short fibers B and C of the base material A1 can be synthetic fibers such as polyamide yarn, polyester yarn, 1IJ acrylic yarn, recycled fibers such as rayon, natural fibers such as wool, or combinations thereof. Glass fibers can also be used.

Adhesives that can be used include thermosetting resins such as polyurethane and urethane, rubber-based resins such as chlor-a-prene and nitrile rubber, and thermoplastic resins such as vinyl acetate and polyethylene. , in the form of an emulsion, hot melt, by roll or knife coating, spraying or electrostatic coating. Note that the above adhesives may be mixed with each other, and may be used in combination with other treatment agents, chemicals, etc. to impart antistatic properties, smoothness, flexibility, moisture absorption, water repellency, flame retardancy, etc. You may.

As the hair transplantation method, electrostatic flocking method, gravity scattering method, etc. can be used.

Next, examples will be shown. Parts represent parts by weight.

Example 1 A polyester synthetic fiber of /30 d consisting of 30 filament was used as the base material. This fiber per meter/
They were heated 0 times and arranged in parallel at 1Jwx intervals. It was continuously impregnated with an adhesive solution containing 21 parts of water-soluble ester-based urethane resin, 1 part of catalyst, and 74 parts of water, and the liquid content was reduced to
Squeezed into an arc, polyester synthetic fibers with a thickness of ljl and a denier length of iows were flocked on one side of the base material using the electrostatic flocking method so that the angle between the base material and the short fibers was 60°, and then on the other side. I had a hair transplant. This was pre-dried at 110° C. for 30 minutes, and after drying, the adhesive solution was spray coated onto the short fibers, and 07 denier, 7 m polyester synthetic fibers were flocked by electrostatic flocking. After pre-drying for 3 minutes at io''C, curing for 2 minutes at iso''C, and drying the substrate for 3 minutes.
It was cut into a length of 0w5 to obtain a product with a shape similar to a feather.

EXAMPLE A woven fabric was prepared from a 10 count single yarn spun yarn made of a copolyacrylic synthetic fiber, and this was used as a base material. Knife coated with acrylic acid ester resin emulsion, L denier,
A 10 tm polyamide synthetic fiber was flocked on only one side of the base material using the electrostatic flocking method. After pre-drying for 5100″CIO minutes, the adhesive was spray footed and OII
After flocking polyacrylonitrile synthetic fibers of 1 denier and 100 cm using electrostatic flocking method, pre-drying for 10 minutes at IOθ℃,
/3! A heat treatment was carried out for 5 minutes. Then, the weft and warp of the base material were cut into two parts each using a knife cutter from the non-flocked side to obtain a product having a finely approximated shape.

After removing the unbonded short fibers mixed in the feather state obtained in Example 1 and A, the feather-like material SO% obtained in Example 1 and the fine material obtained in Example - Separate material SO%
are mixed, diameter/10α, height tr.

I filled the bag with too9. On the other hand, for comparison, feather jO
The sample was filled with 10009 consisting of 1000% and a finely divided jO% in the same manner as described above, and was measured by folding it in half to obtain the characteristic values shown in Table 1.

Remove the load shown in Table 1 and leave it for 20 seconds. QJ69A after repeating this operation three times - height under load cR).

Specific volume: crl/9h of batting at the time of ho measurement,
: (Q3A9 +, 5': Height 1 after being left for 30 seconds under a load of (1g)/crI Compression 't' : [(ho-tJ)/ho]X10
0h, :b, Height after removing the load of ≦9 and leaving it for 3 minutes after measurement α Recovery rate '((tb-hl)/(ho-h+))x
As shown by the data in zO0 Table 1, the feather-like material obtained according to the present invention has bulkiness, lightness, and compression characteristics extremely close to those of feathers. Since heat retention is mainly controlled by air content, the specific volume in Table 1 indicates that the feather-like material according to the present invention has heat retention similar to that of feathers. A batting having a fit similar to that of feathers is obtained.

Further advantages of the present invention are that the base material corresponding to separate shafts, barbs and barbules, the denier and length of the short fibers B and C can be easily changed, and the feather condition corresponding to feather feathers and subdivisions. can be mixed in arbitrary proportions, and various treatment agents such as smoothing agents, softeners, antistatic agents, flame retardants, water repellents, water absorbing agents, etc. can be applied to the fibers used. ,
It is possible to obtain batting having desired functions, texture, and compression characteristics.

[Brief explanation of drawings]

The drawings are plan views showing seven examples of the batting material of the present invention. A...Filamentous base material B...Short fiber C...Short fiber /...Glue agent...Adhesive agent Toru Hoshino□

Claims (5)

[Claims] (1) Filling material having a feather-like branched structure consisting of short fibers B, which are flocked with an adhesive on a filamentous or cloth-like base material A, and short fibers C, which are further flocked with an adhesive on the short fibers B. . (2) The batting material according to claim 1, wherein the base material A is a spun yarn, a multifilament yarn, or a monofilament yarn. (3) The batting material according to claim 1, wherein the base material A is a woven fabric, a knitted fabric, a nonwoven fabric, a flat tow, or a piece of fabric from the top. (4) Arrange the filamentous base materials A in parallel, use adhesive to arrange and flock the short fibers B on one or both sides of each base material A, and then apply the short fibers C to the short fibers B with adhesive. 1. A method for manufacturing a batting material, which comprises: filling, flocking, and then cutting the base material A into appropriate lengths. (5) One side or both sides of cloth-like base material A [short fibers B are flocked using an adhesive, short fibers B are flocked with short fibers C using an adhesive, and then the base material ^ cut in one direction, or
Or, a method for manufacturing a batting material, which is characterized by cutting in the U direction.