JPH03146703A - Bulky wear and its preparation - Google Patents

Abstract

PURPOSE:To provide a bulky wear permitting to readily arrange fabrics in a spreading process, cut many fabrics at a stroke and sew the cut fabric in one process in high operation efficiency by employing a wadding increasing the thickness thereof when dry-heated or wet-heated. CONSTITUTION:For example, highly crimpable fibers having a crimp percentage of 12-17%, a residual crimp percentage of 7-70% and a crimp elastic degree of 30-100% are false-adhered with an adhesive having a melting point lower 10 deg.C than that of the fibers and compressed to spread the wadding raw material. The spread wadding is cut in the approximately same size as that of a fabric and subsequently sewed. The sewed fabric is subjected to a dry heat treatment or wet heat treatment to increase the thickness of the wadding raw material. Since the prepared wear can be stored and transported at a stage before the increase of the bulk, a large space is not required to be profitable.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to bulky clothing, that is, clothing using padded cotton, and a method for manufacturing the same. More specifically, it is a garment using a padded cotton material, which weakens the adhesive strength of the adhesive and increases bulk due to the restoring force of the wA fibers when treated with dry heat or wet heat. ! This is a method for manufacturing bulky clothing, which is characterized by increasing the bulk of the cotton padding material after manufacturing.

[Prior Art] Conventional methods for manufacturing clothing using bulky cotton padding are generally as follows.

■Spreading the padded cotton→■Cutting the padding into parts larger than the fabric to be sewn →■Sewing the fabric and padding for each part−■
The fabric of the sewn parts is further sewn together to form a garment →
■Storing and Transporting Clothes The cotton padding traditionally used is a fluffy, bulky nonwoven fabric with a low apparent density, making it difficult to handle and posing various problems.

For example, because it is bulky, it is not possible to stack a large number of sheets during spreading, making cutting work inefficient, and requiring a large space for storage and transportation, which poses a cost problem.

In addition, because it is bulky, has a low apparent density, and does not have shape retention, it is not only difficult to handle in each process, but also when cutting the batting cotton, it is cut larger than the fabric in advance, and then the fabric is cut into pieces for each part. At the same time as sewing up the padded cotton, it was necessary to cut off the excess part of the padded cotton. This has the problem of complicating the manufacturing process and causing a large amount of loss due to cutting off the excess portion, making it uneconomical.

[Problems to be solved by the invention] The present invention aims to streamline the manufacturing process, improve workability, and improve storage and
It is an object of the present invention to provide bulky clothing that is advantageous in terms of costs such as transportation, and a method for manufacturing the same.

[Means for Solving the Problems] The present invention is a bulky garment using padded cotton whose thickness increases by dry heat or wet heat treatment, and which is made by rolling, cutting, and sewing a non-bulky padded cotton material. This is a method for manufacturing bulky garments in which the thickness of the padded cotton material is then increased by dry heat or wet heat.

[Function] The filling cotton material that can be used in the present invention is a nonwoven fabric whose adhesive strength is weakened by the adhesive and its bulk increases due to the restoring force of the fibers themselves when subjected to dry heat or wet heat treatment. Therefore,
Making clothes before adding bulk improves work efficiency.

In this specification, the wadding cotton material refers to a cloth-like state without bulk, and the wadding cotton material refers to a cotton-like state with increased bulk.

This cotton filling material is made by compressing and temporarily bonding a non-woven fabric that maintains its bulky shape with a temporary adhesive.
A thinner material is preferred because it is easier to handle. After this cotton filling material is sewn with fabric to form a garment, the adhesive force of the temporary adhesive is weakened by dry heat or moist heat, and the bulk can be restored by the restoring force of the fibers themselves. As previously disclosed by the applicant in Japanese Patent Application No. 1-159294, such nonwoven fabrics have a crimp rate, residual crimp rate, and crimp elasticity of 12 to 70% and 7 to 70%, respectively. , 30~
After bonding these fibers with a binder that is not affected by dry heat or wet heat using a high crimping am of 100% and giving them a shape, the binder has a temperature of 10% higher than the melting point of the high crimping fiber. It is a cloth-like material whose apparent density is increased by temporarily adhering it using a temporary adhesive with a melting point lower than °C.

However, the filling cotton material that can be used in the present invention is not limited to the above-mentioned materials, but any material that increases in bulk when subjected to dry heat or wet heat can be preferably used. For example, it is also possible to use a nonwoven fabric that does not contain any temporary adhesive but is made of m-fibers and adhesive only, and in which this adhesive has both the roles of main bonding and temporary bonding. The fibers of this nonwoven fabric are fixed together with an adhesive without bulk, but when dry heat or wet heat is applied, the adhesive strength of the adhesive weakens, and the restoring force of the fibers increases the bulk. It is re-bonded and fixed with adhesive to maintain its shape.

Outer materials to be sewn with such padded cotton materials include woven products such as taffeta, twill, satin, satin, and oxford cloth, coated cloth, film laminated cloth, moisture-permeable waterproof cloth such as high-density fabric, natural leather, There are also artificial leathers.

Further, as the lining material, woven products such as taffeta, satin, and de Chine, and knitted products such as tricot, pile knitting, and fleece knitting are used.

A general manufacturing method of the bulky garment of the present invention made using the above-mentioned padded cotton material is as follows.

■Spreading the padded cotton material→■Cut the medium-sized adult cotton material into approximately the same size as the fabric to be sewn→■At the same time as sewing the fabric and padded cotton material, the fabrics are also made of U →■Storage and transportation→■Medium In other words, the manufacturing method according to the present invention is characterized by increasing the bulk of the cotton filling material.The manufacturing method according to the present invention eliminates the need to cut the filling material into larger pieces than the fabric to be sewn together, as in the conventional method. It is possible to perform the process of sewing the cotton padding and the process of sewing the fabrics together at the same time, which greatly simplifies the process. This effect is due to the fact that padded cotton is originally bulky, but since the padded cotton of the present invention is cloth-like, it has excellent shape retention and is easier to handle than conventional bulky padded cotton. , arises from the fact that it becomes easier to sew.

Looking more closely at the manufacturing process of the bulky garment of the present invention, each process produces effects that were previously unobtainable.

First, in the spreading process, it is necessary to align the fabric, to prevent distortion of the fabric, and to reduce errors in folding the fabric. It has been difficult to satisfy these conditions with conventional padded cotton because it is bulky and has a low apparent density. However, since the present invention uses a cloth-like padded cotton material that is not bulky and has a large apparent density, the above conditions can be easily satisfied. In addition, since the padded cotton material used in the present invention is less than one-fifth of the thickness of conventional padded cotton, even simple calculations show that the number of folds of the fabric in one spreading is more than five times that of conventional padding. Moreover, the spreading process can be automated, dramatically improving work efficiency.

For this spreading process, a normal spreading machine such as a manual suspension type, a short horizontal type, a single roll spreading machine, a multi-roll spreading machine, a spreading machine equipped with a shrinkage device, etc. can be used.

Next, in the present invention, it is only necessary to cut the padded cotton material into a size that is approximately the same as the fabric to be sewn, but this is because the padded cotton material with a large apparent density is used, which improves shape retention. It was possible because of this. In the present invention, a small bulky filling material is used, so after cutting the fabric to a larger size than the fabric to which the filling is sewn in the conventional method, the fabric and the filling are sewn together for each part, and at the same time, the excess The process of cutting off is no longer necessary. By omitting this step, it was possible to rationalize the process, and moreover, there was no need to cut off any excess waste, resulting in material savings and favorable results in terms of cost. Since it is not only made of glass but also a cloth-like padded cotton material, its cutting performance has improved, making it possible to manufacture more precise clothing.

Furthermore, as in the spreading process, by increasing the number of stacked sheets during cutting and automating cutting, cutting can be performed with higher efficiency.

This cutting process can be carried out using conventional cutting machines, such as straight blade cutting machines, round blade cutting machines, three-dimensional cutting machines, press cutting machines, automatic cutting machines,
This can be done using a water jet cutting machine or the like.

Conventionally, it was necessary to cut the padded cotton to a size slightly larger than the fabric, then sew each part to the fabric, and at the same time cut off the excess padded material.

However, with the present invention, there is no need to sew the fabric and padding material for each part and cut off the excess padding material at the same time. and can be significantly streamlined. One of these effects is that there is no need to worry about it shifting due to the excellent shape retention of the padded cotton material.
This is due to the fact that it has become possible to cut it into approximately the same size.The other reason is that it is a fabric-like padded cotton material with a large apparent density, so it is easy to handle, so it is necessary to sew each part together at the same time. It became possible to sew fabrics together.

Nakairi &! The material may be sewn to the outer fabric or to the lining, but generally it is sewn to the outer fabric.

This is because even if the thickness of the cotton padding increases when sewn to the lining, there will be a space between the batting cotton and the outer material, resulting in a polyurethane feel despite the use of padded cotton. This is because, although it often gives the impression that there is no flaw, such defects do not occur when it is sewn onto the outer material.

For example, commonly used sewing machines such as a lockstitch sewing machine, a single-ring sewing machine, a double-ring sewing machine, a flatbed sewing machine, an overedge sewing machine, a compound sewing machine, and a special sewing machine may be used for sewing.

The above is a case in which it is possible to sew the batting material and the fabric for each part and simultaneously make the fabrics together, but it is not necessarily necessary to sew the fabrics together at the same time, and after sewing each part, the fabrics can be sewn together. Sewing may also be performed. Even in this case, in addition to being easy to handle and improving work efficiency, it is economically advantageous because there is no loss of material due to cutting the padded cotton into pieces roughly the same size as in the past. That's why.

In addition, in order to ensure accurate sewing, whether the fabrics are sewn together at the same time or the fabrics are sewn together after each part is sewn together, dots of hot-melt adhesive resin are applied to the cloth-like padding material. , it may be applied in the form of a strip or the like so that it can be laminated with fabric. In this case, care must be taken not to damage the texture of the garment by adhering the padded cotton material to the fabric. Furthermore, it is also necessary to avoid affecting the constituent components of the cotton filling material whose bulk increases due to the adhesion of the hot-melt adhesive resin. For example, if the melting point of the hot-melt adhesive resin is higher than the melting point of the constituent components of the batting material, the bulk may increase or deform during the process of melting the adhesive resin and bonding the batting material and the fabric. This is because it becomes film-like and does not function as a filling material.

Clothes made of padded cotton material and fabric are stored and transported without bulk. Since this clothing is not bulky, it does not require a large space and is therefore uneconomical. Thereafter, bulky clothing is completed by increasing the bulk of the cotton filling material by applying dry heat or moist heat.

How the bulk is increased depends on the physical properties of the adhesive contained in the batting material, such as its melting point or whether it is water-soluble. For example, if the adhesive is a water-soluble polymer such as polyvinyl alcohol, 1
It is preferable to process with water vapor at about 00°C. However, -
It is preferable to increase the bulk by moist heat for boat fishing because the bulk increases easily.

[Example] A fiber web consisting of 80% by weight of highly crimped polyester fiber (3dX 51 questions) and 20% by weight of low melting point core-sheath composite polyester fiber (3dX 51 questions, melting point 87°C) was prepared using self-crosslinking acrylic acid. The padded cotton with a basis weight of 60 g/a+2 bonded with an emulsion binder was compression-pressed with a heat roll at a temperature of 100° C. at a gauge pressure of 2 kg/cm 2 to obtain a cloth-like padded cotton material.

When this filled cotton material was spread using an automatic spreading machine,
It was able to be folded 12 times more than conventional padded cotton.

Thereafter, the rolled padded cotton material was cut into parts approximately the same size as the outer lime using an electric straight-blade cutting machine. The workability during cutting was also good.

Then, the cut cotton padding material was overlapped with the lime parts, and the batting cotton material and the lime were sewn together using a lockstitch sewing machine, and the limes were also ta-made, and then joined to the taffeta of the lining. Even at this *ia stage, the bulky padded cotton material was easy to handle and had good workability.

Afterwards, the bulk of the garments formed by sewing was increased using two methods: treatment with steam at 100°C for 30 seconds and treatment with dry heat at 140°C for 30 seconds, but both methods showed good results for the padded cotton material. The bulk increased, making it possible to obtain bulky clothing.

The dry cleaning resistance of this bulky garment was also excellent.

[Effects of the Invention] Since the bulky garment of the present invention is manufactured using a padded cotton material whose bulk increases with dry heat or wet heat, the following effects are produced in each step.

In the fabric spreading process, fabrics can be easily aligned and handled without causing distortion or folding errors, and by increasing the number of stacked fabrics, work efficiency is greatly improved.

In the cutting process, there is no need to cut the fabric larger than the fabric used in the past, so there is no loss of padded cotton material. In addition, it has a high apparent density and is easy to cut because it is cloth-like.
Since the number of sheets to be cut is large, work efficiency has also been greatly improved.

The manufacturing method of the present invention differs from the conventional sewing process in two steps: sewing the padded cotton and the fabric part by part, and at the same time cutting off the excess part of the padding, then sewing the fabrics together to make clothes. It is not necessary to perform the sewing process, and Ua can be done in the - process, so it can be streamlined to a great extent.

Since storage and transportation are performed before the bulk increases, no space is required, and storage and transportation costs can be significantly reduced, which is a great cost advantage.

In addition, the bulky clothes made in this way have excellent dry cleaning resistance, and are no different from those made using conventional padded cotton.

As described above, the present invention significantly improves the efficiency of the conventional manufacturing process for bulky clothing, and is a method for manufacturing bulky clothing that has extremely large operational and economical effects. The bulky garment made in this way has excellent performance and is cost effective.

Claims (4)

[Claims] (1) Bulky clothing characterized by using padded cotton that increases in thickness by dry heat or wet heat treatment. (2) After spreading, cutting, and sewing a bulky padded cotton material fixed with an adhesive having a lower melting point than the constituent fibers, the thickness of the padded cotton material is increased by dry heat or moist heat. A method for manufacturing bulky clothing characterized by: (3) The method for manufacturing bulky garments according to claim 2, wherein in the cutting step of claim 2, the filling material is cut into a size substantially equal to the size of the fabric to be sewn with the filling material. (4) The method for manufacturing bulky garments according to claim 2 or 3, characterized in that in the sewing step of claim 2, the fabric and the padding material are sewn together, and the fabrics are also sewn together.