CN1610513A - Seamless lace lingerie article - Google Patents

Abstract

The invention concerns a lace lingerie article for maintaining and supporting part of a woman's body, characterized in that said lace is an elastic material capable of being simultaneously thermoformed, welded and heat-bonded to at least a reinforcing element, said material capable of being subjected without damage of the yarn to a permanent deformation by thermoforming during a moulding process for producing lingerie in all the standard sizes, and preserving after deformation a mechanical strength and elasticity such that said articles preserve their aptitude to support and maintain the part of the body on which they are worn.

Description

Seamless mesh fabric lingerie items

technical field

The present invention relates in one aspect to a lace lingerie article of mesh fabric which can contain, support and even protect a part of a woman's body, and in another aspect to a method of making the same. The articles concerned are primarily bras, panties, briefs and thongs, which are worn to achieve at least one of the above functions.

Background technique

In the field of lingerie, manufacturers have always had to take on a triple challenge: ensuring the user's best fit, maintaining an optimum volume for support and containment, and providing an aesthetic appearance that satisfies the consumer's taste, and finally This criterion is not the least important.

In the past, lingerie items were typically manufactured from individual plane pieces of fabric or mesh that were combined into a usable finished product, the ready-to-wear product. In particular, by sewing the individual pieces of cloth, it is possible to obtain three-dimensionally shaped volumes, which are necessary, for example, for the manufacture of cups of brassieres. However, said seams create excessively thick sections, which can be uncomfortable for the skin, a drawback that manufacturers have always tried to avoid, in general.

Therefore, in order to reduce or even eliminate the existence of seams, techniques such as bonding and welding have been developed and applied to this field.

However, these techniques have never been extended to articles made entirely of mesh fabric, furthermore such articles present certain problems related to the other technical support and containment functions to be performed by these articles. In order to fulfill these functions, said objects must consist of one material or a mixture of several materials in order to ensure their mechanical stability in accordance with the specific stresses to which they are subjected during manufacture and during use. This applies in particular to bra cups, especially large cup sizes, such as D-designated depth cups, the size of the volume created by the cup must be proportional to the amount of pressure to be controlled.

However, the tulle used to form the base network structure of mesh fabrics is, by definition, a light, porous material that contains a small amount of fibers. So, in the specific example of a plus size bra, the relatively small amount of fibers must be able to withstand the same stresses as a conventional product would be made of a "dense" textile material.

Still taking the example of the cups of a brassiere, the three-dimensional shape of the cup is usually obtained by molding, so the fibers must also be able to support the deformations produced during the molding operation.

Finally, said mechanical stability must be ensured not only in the sole support area of the part of the woman's body covered by the cup, but must also allow a practical distribution of forces over the entire article, in particular taking into account the forces exerted on the various parts of the article daily stress on the body to help give this product maximum comfort and longevity.

Thus, the production process of an article of lingerie consisting entirely of mesh fabric presents certain problems, in particular with regard to the choice of materials used, which the present invention has solved. One of the main difficulties is that these problems are interdependent and the solution proposed by the present invention must make some kind of compromise in order to obtain the most balanced overall solution.

Contents of the invention

To achieve this, the mesh fabric lingerie article according to the invention is characterized in that the mesh fabric is made of an elastic material which is simultaneously thermoformable, weldable and capable of bonding at least one reinforcement, said The mesh fabric is capable of withstanding permanent deformation without damage to the mesh fabric threads caused by thermoforming, which occurs during the molding operation for manufacturing lingerie items of all conventional sizes, and which is capable of retaining its shape after deformation Mechanical stability and resilience so that the article can maintain its ability to support and contain the body part it covers.

Therefore, the material selected as the mesh fabric thread needs to meet many conditions and criteria, and the selected material undergoes a large number of verification tests before obtaining an item that can effectively ensure its function, regardless of the size of the item. Since the issue of the cups of bras, especially oversized bras, is clearly the most critical, this issue will form the central example of the invention and the invention will be described in connection with this example throughout the specification.

For D cups, the thermoforming process that takes place when molding the cup volume is much more important than the thermoforming process that takes place for smaller sizes. However, in this hypothesis, since the weight of the breast supported by the cup is greater than that of a cup subjected to less deformation, it is absolutely necessary to preserve the intrinsic properties of the fibers in the cup after corresponding deformation.

Therefore, first of all, this deformation must not damage the mesh threads, nor in any way impair their mechanical properties.

The results of the tests clearly showed that the mesh fabric suitable for this problem consisted of a blend of polyamide and elastane. More specifically, it is composed in the following proportions: 60% to 80% polyamide and 20% to 40% elastane.

The best results are obtained through an elastic mesh fabric composed of 76% polyamide and 24% elastane. And according to repeated tests carried out by the applicant, the polyamide is preferably type 6.6.

As can be seen from the detailed description below, for making the lingerie article of the present invention, the use of suitable materials is only a necessary condition, but not a sufficient condition. The method of producing the mesh, in particular the preforming of the mesh, which imparts a certain deformability to the mesh, also plays a dominant role.

In most cases, lingerie items are covered with reinforcements such as linings, pads, barriers, and the like. Thus, the stiffener(s) must of course be mechanically connected to the mesh fabric forming the exterior of the article and be able to withstand the same stresses as the mesh fabric.

Thus, according to the invention, the viscous material used to bond one or some reinforcements is elastic and thermally active at a temperature such that it can subsequently be subjected to thermoforming while maintaining cohesiveness and mechanical stability after deformation and elasticity suitable for supporting and containing the body part covered by the article of lingerie.

Of course, this adhesive must have the necessary property of ensuring the connection of the outer layer to the inner layer, that is, preventing undue unbonding between the lining and the mesh.

The bonding material is preferably a polyurethane adhesive which melts at a temperature below the thermoforming temperature and which remains active during the thermoforming process. Even more specifically, this adhesive is meltable from 180°C.

According to the general definition above, a third essential part of the lingerie article of the present invention comprises an internal reinforcement or protection part, and this part also affects wearing comfort.

According to the invention, these inner reinforcing or protective parts consist of a material capable of withstanding deformations caused by thermoforming while maintaining after deformation mechanical stability and elasticity suitable for supporting and containing The part of the body covered by the article of lingerie.

So, if these three superimposed layers exist, the same basic condition obviously applies to them as well. Since this is being asked about mesh fabrics, it bears repeating that these conditions must apply to both large and small cup sizes. Therefore, during daily use, the noticeable deformations mentioned at the outset must not impair the mechanical properties of the reinforcement or bonding material, nor of the outer mesh fabric.

According to one possibility, the material used for the reinforcement is an elastic jersey which can be elongated exactly the same in the longitudinal direction as in the transverse direction. Thus, the stitches of this jersey can be stretched in the same way in both directions.

This isotropic mechanical behavior in the direction of two mutually perpendicular axes is justified because it has the potential to prevent slippage during molding. Often, in fact, the lining of the bra is not held on top of the mesh fabric during the molding process. Stitches that are not sufficiently extended will then slip on the mesh fabric instead of conforming to the latter during the molding action, thereby becoming slack.

More specifically, this jersey is composed of 85% to 95% polyamide and 5% to 15% elastane.

Tests have shown that, in a preferred manner, the best results are obtained if the jersey consists of 89% polyamide and 11% elastane.

In terms of the heat pressure necessary for molding and bonding, again: if the polyamide is type 6.6, the threads will not break.

Because the liner is used to reinforce the article and the weld of the bra cup, it must be responsive enough to accommodate deformations affecting the weld during daily use. This responsivity is defined as the force applied to obtain an elongation of 40%, which is about 1.1N±0.5N in the longitudinal and transverse directions, which are the two directions mentioned above.

However, the choice of material is not the only issue that needs to be considered; the method of manufacturing the mesh fabric is equally important.

Thus, the lingerie article of the present invention is made from a strip of mesh fabric that is preformed for use in making the article, in order to avoid the need to install one or more elastic fabrics on said article, Said strip of mesh fabric is reinforced at its edges, said article being obtainable by cutting off at least one piece from one reinforcing edge and not reaching the other, by welding said one or several pieces, and by bonding at least one reinforcement.

Depending on whether the article is intended to be used as a bra on the one hand, or as panties, briefs or trousers on the other hand, the preforming process differs. It involves adjusting the length and width dimensions of a mesh fabric while passing through an equalizing frame at temperatures around 185°C. The preforming operation takes place before dyeing and, for the article, during subsequent handling, especially mechanical handling, during fabrication (molding), and successive washing/wearing during the life of the product During the cycle, this preforming operation keeps the product from being damaged.

In this way, the preforming process can distinguish whether the mesh fabric is used to make a bra or is used to make a panty panty or a brief Mesh fabrics for slender panties or briefs do not require molding.

Therefore, mesh fabrics used in bras have greater potential for elongation in the width direction in order to easily mold deeper cups. During this molding process, while elongation of the material occurs in the length and width directions, the shape of the cup is stretched more in the width direction.

The mechanical properties of the reinforcement edges of the mesh fabric strips allow these reinforcement edges to replace elastic fabrics located around briefs or panties or around the breasts, or around the breasts of a bra under the breasts.

Preferably, the pieces cut from one reinforcing edge are ultrasonically welded, thereby reducing the number of seams on articles made entirely of mesh fabric.

If the lingerie article of the present invention is a brassiere, the brassiere is made from a strip of mesh fabric preformed such that its responsiveness (applied for 40% elongation) Force), in the length direction of the middle part of the mesh fabric strip is 3.7N±1.2N, in the length direction of the reinforced side is 5.7N±1.7N, and in the width direction of the mesh fabric strip is 10.5N±3.2N N. In this case, the width of the strip of mesh fabric is approximately 30 cm.

It should be noted that the responsiveness of the reinforced side is greater than that of the middle of the mesh fabric strip, thus clearly showing that the function of the reinforced side is to replace an elastic fabric.

In most cases, the cups of the brassiere of the present invention are reinforced by an adhesive lining.

Furthermore, according to a characteristic of the invention, the breast cups may consist of two pieces of similar shape, so that after the cups are welded to each other, the reinforcing edge marking the bottom of each cup is arranged in a herringbone pattern.

Making said herringbone pattern from mesh fabric sheet has the function of improving the installation and use process, because this method of making makes it easier for the lower part of the bra to be placed on the female breast.

Secondly, the present invention also relates to a method for making a bra that satisfies the above characteristics, comprising the following steps:

- For bras, preform a strip of mesh fabric approximately 30cm wide;

- to form said brassiere, individual mesh fabric pieces are cut for assembly;

- welding said mesh fabric pieces;

- apply a few drops of heat-free polyurethane adhesive to the reinforcing material;

- bonding a film of thermally active adhesive material to said material;

- cut out multiple reinforcements;

- attaching said reinforcement to the mesh fabric by virtue of the thermal activity of the bonding material;

- Thermoformed cups at temperatures between 190°C and 200°C.

Alternatively, the lingerie article of the present invention may be women's panties, briefs or panties made from a strip of mesh fabric that is preformed in a different manner so that it fits Corresponds to the pressure of these items.

Like this, this mesh fabric strip can be preformed like this, and promptly its responsivity is 3N±1N on the length direction of this mesh fabric strip middle part, is 4N±1.2N on the length direction of reinforcing side, and in this mesh fabric strip The width direction is 18.5N±5.5N.

In this case, in order for the strips of mesh fabric to make briefs or panties of all sizes, its width is approximately 34 cm. For these items, the mesh fabric has a lower elongation than brassiere mesh fabrics, but has a greater responsiveness in the width direction.

Since none of the parts are molded, the welded part can be reinforced with an adhesive lining.

As with the brassiere, the invention also secondarily relates to a method for producing underpants, briefs or elongated briefs of mesh fabric satisfying the above-mentioned properties, comprising the following steps:

- For panties, briefs or panties, preform a strip of mesh fabric approximately 34 cm wide;

- for forming said briefs, briefs or panties, at least one mesh fabric piece is cut;

- welding said mesh fabric piece or pieces;

- apply a few drops of heat-free polyurethane adhesive to the reinforcing material;

- bonding a film of thermally active adhesive material to said material;

- cut out multiple reinforcements;

- Attaching said reinforcement to the mesh fabric by means of the thermal activity of the bonding material.

In the process of making brassiere on the one hand and panties, briefs or panties on the other hand, the arrangement and shape of the individual mesh pieces used to form these items are of course optimized with respect to their respective mesh strips, which It can be obtained from the detailed description below.

Description of drawings

In order to be more clear, the present invention will now be described in more detail in conjunction with the accompanying drawings, wherein:

Fig. 1 is the front view of a kind of mesh fabric bra of the present invention, and this bra is provided with reinforcing pad near cup;

Figure 2 illustrates a strip of mesh fabric preformed for making a bra, the strip of mesh fabric being provided with a plurality of fabric pieces for forming cups;

Fig. 3 schematically shows the combination of two cups in a herringbone pattern;

Fig. 4 schematically illustrates mesh fabric briefs of the present invention;

Figure 5 illustrates a slim panty; and

Figure 6 illustrates the optimal manner in which pieces of fabric will be cut from a strip of mesh fabric which is pre-formed for making elongated panties.

Detailed ways

Referring to Figure 1, the mesh brassiere of the present invention comprises two parts symmetrical about axis A, which are ultrasonically welded in zone 1 and near axis A.

Therefore, this brassiere can be formed without any stitching, and all that remains is that on the one hand fastening adjustment devices are attached to the two side ends 2, 3 of the brassiere for fastening at the back and Another aspect is to attach the fastening adjustment device near the sling.

These straps consist of front parts 4, 5 which are arranged to be connected to rear parts 6, 7 by means of a mechanism which allows size adjustment and which are easily placed on the shoulder, for example for disassembly.

Thus, after welding, the brassiere consists of a piece of fabric formed entirely of mesh fabric, comprising a lower part consisting of a reinforcing edge 8, as described above, instead of an elastic fabric.

If this reinforcing side 8 is arranged on brassiere, just do not need to install elastic fabric, and can completely eliminate this installation step necessary in the prior art, so can further optimize the manufacturing process of brassiere, and if there is this strengthening on brassiere This provides an advantage in terms of wearing comfort, as no stitching is required in the close-fitting area around the bust.

Finally, aesthetically, the lower edge of the bra around the female breast under the breasts becomes lighter and at the same time maintains the mechanical properties of an additional elastic fabric.

A reinforcing pad 9 is arranged at the bottom of the cup, that is to say in the area that is subjected to the greatest pressure due to the weight of the breast.

In order to create the volume forming the cups of the brassiere, the pad 9 is located in the area that undergoes the molding process 10, 10'. This molding process, achieved by thermoforming, does not destroy the connection between the pad 9 and the mesh fabric, and regardless of the size of the cup being molded, the molding process does not weaken the article, i.e. the cup's support and mechanical quality in terms of accommodation.

Therefore, as explained in detail above, the mechanical properties of the three layers of mesh fabric, bonding material and pad 9 must be such that they resist deformations due to thermoforming without impairing their mechanical properties at all.

Referring to FIG. 2 , cups B1, B2 each start from a reinforcing edge 8, and the optimized design diagrams of these cups B1, B2 specifically show that there is an angle greater than 90° between said reinforcing edge 8 and line 11, It is at this line 11 that one cup is fastened to the other cup.

This line 11 is shown dashed because after welding the cups as shown in FIG. 3 the portion defined by this line together with the outer line is cut off. If this angle between said reinforcing edge 8 and line 11 is greater than 90[deg.], then the lower reinforcing edge 8 of the bra front can be shaped in a herringbone shape.

As can be seen from Figure 2, these reinforcing edges are in fact scalloped and therefore have a different responsiveness than the rest of the mesh fabric, thereby ensuring its performance, that is, replacing the elastic fabric.

Of course, the scalloped reinforcing edge 8 is located on the upper edge of the briefs shown in Figure 4, which are made of two separate mesh fabrics that are held at the hips at the dotted line 12, 12'. Weld it up.

These welded areas have incorporated an internal reinforcement at the hip and indicated by hatching 13, 13'.

The same applies to the elongated panty shown in Figure 5, however, this elongated panty is made of only one piece of mesh fabric which is welded at dotted line 14 and which has only one reinforcement, The stiffener is indicated by hatched portion 15 .

Figure 6 illustrates the appearance of a single piece of mesh fabric used to form an elongated panty in a strip of mesh fabric that is preformed to make the elongated panty.

Like all other underwear items, the profile starts from one scalloped reinforcing edge 8 and is formed on the other edge, but does not reach the other edge.

In fact, in all cases, there is only one location on the periphery of the female body that requires elastic function.

Of course, the examples of the appearance of a single piece of mesh fabric appearing on a mesh fabric strip on the one hand, and the styles of women's underwear items shown in the drawings on the other hand, are only used to illustrate the present invention, but should not be considered as examples. Detailed description of the present invention. On the contrary, the present invention encompasses all variations of these patterns and processes, and this variation can be effected with strips of mesh fabric, the characteristics of which have been specified above.

Claims (25)

1. mesh fabric chemise article, it can hold, support the part of female body, it is characterized in that, described mesh fabric is to be made by a kind of elastomeric material, this material can carry out thermoforming simultaneously, the welding and at least a reinforcement that can bond, described mesh fabric can be under the condition of not damaging the mesh fabric silk thread, stand the permanent deformation that causes by thermoforming, this thermoforming occurs in the molded operating process of carrying out for the chemise article of making all conventional size, and described mesh fabric can keep mechanical stability and elasticity after distortion, so that described article can keep it to be used to support and hold the ability of the body part of its covering.

2. according to the mesh fabric chemise article described in the top claim, it is characterized in that described mesh fabric is made up of the mixture of a kind of polyamide and elastomer.

3. according to the mesh fabric chemise article described in the top claim, it is characterized in that described mesh fabric is made up of 60% to 80% polyamide and 20% to 40% elastomer.

4. according to the mesh fabric chemise article described in the top claim, it is characterized in that described mesh fabric is made up of 76% polyamide and 24% elastomer.

5. according to arbitrary described mesh fabric chemise article in the top claim 2 to 4, it is characterized in that polyamide is 6.6 types.

6. according to arbitrary described mesh fabric chemise article in the top claim, it is characterized in that, the binding material of one or more reinforcements of being used to bond has elasticity at a certain temperature and heat is active, so that it can stand thermoforming subsequently, simultaneously also can keep bond quality, and can keep mechanical stability and elasticity after distortion, described mechanical stability and elasticity are suitable for supporting and holding the body part that these chemise article are covered.

7. according to the mesh fabric chemise article described in the top claim, it is characterized in that binding material is the polyurethane adhesive, it is just fusible in a certain temperature that is lower than under the hot-forming temperature, and it keeps active in described thermoforming process.

8. according to the mesh fabric chemise article described in the top claim, it is characterized in that the polyurethane adhesive is just fusible from 180 ℃.

9. according to arbitrary described mesh fabric chemise article in the top claim, it is characterized in that, this reinforcing element or these reinforcing elements are made up of a kind of material that can stand the distortion that caused by thermoforming, simultaneously can keep mechanical stability and elasticity after distortion, described mechanical stability and elasticity are suitable for supporting and holding the body part that these chemise article are covered.

10. according to the mesh fabric chemise article described in the top claim, it is characterized in that described material is a kind of elasticity jersey, it can carry out substantially the same prolongation at vertical and horizontal.

11. the mesh fabric chemise article according to described in the top claim is characterized in that, described jersey is made up of 85% to 95% polyamide and 5% to 15% elastomer.

12. the mesh fabric chemise article according to described in the top claim is characterized in that, described jersey is made up of 89% polyamide and 11% elastomer.

13., it is characterized in that polyamide is 6.6 types according to arbitrary described mesh fabric chemise article in top claim 11 and 12.

14. according to arbitrary described mesh fabric chemise article in the top claim 9 to 13, it is characterized in that, form the responsiveness of the material of these reinforcements, promptly the power that applies in order to obtain 40% prolongation amount approximately is 1.1N ± 0.5N on vertical and horizontal.

15. according to arbitrary described mesh fabric chemise article in the top claim, it is characterized in that, it is made with a kind of mesh fabric bar, in order to be used to make this article, this mesh fabric bar is by preformed, for fear of the needs that one or more elastic fabrics are installed on described article, the limit of described mesh fabric bar is reinforced, by under the condition that does not arrive another side, cut out a slice mesh fabric at least from a stiffened edge, by welding described a slice or several mesh fabric, and, just can make described article by at least one reinforcement of bonding.

16., it is characterized in that welding manner is ultrasonic bonding according to the described mesh fabric chemise of top claim article.

17. according to arbitrary described brassiere in the top claim, it is characterized in that, it is to make by a kind of mesh fabric bar, this mesh fabric bar is by preformed, so that its responsiveness, promptly the power that applies in order to obtain 40% prolongation amount is 3.7N ± 1.2N on the length direction at this mesh fabric bar middle part, on the length direction of stiffened edge, be 5.7N ± 1.7N, and on the width of this mesh fabric bar, be 10.5N ± 3.2N.

18. the brassiere according to described in the top claim is characterized in that, mesh fabric bar width is approximately 30cm.

19., it is characterized in that cup is strengthened by a kind of bonding lining according to arbitrary described brassiere in top claim 17 and 18.

20., it is characterized in that cup can be made up of the sheet of two appearance similars according to arbitrary described brassiere in the top claim 17 to 19, so that after cup is welded to one another, indicate that the stiffened edge of each cup bottom is arranged with the herringbone pattern.

21. a method that is used to make the brassiere that satisfies the described feature of claim 17 to 20 is characterized in that it comprises the steps:

-for brassiere, width of preformed is approximately the mesh fabric bar of 30cm;

-for forming described brassiere, cut out a plurality of mesh fabric sheets and make up waiting;

The described a plurality of mesh fabric sheets of-welding;

-coat several no thermoactive polyurethane adhesives to reinforcement material;

-an active binding material film of heat is bonded on the described material;

-cut out a plurality of reinforcements;

-utilize the heat of binding material active, described reinforcement is connected on the mesh fabric;

During-temperature between 190 ℃ and 200 ℃, the thermoforming cup.

22. according to arbitrary described smallclothes, panties or elongated pants in the top claim 1 to 16, it is characterized in that, they are to make with a kind of mesh fabric bar, this mesh fabric bar can be by preformed, so that its responsiveness is 3N ± 1N on the length direction at this mesh fabric bar middle part, on the length direction of stiffened edge, be 4N ± 1.2N, and on the width of this mesh fabric bar, be 18.5N ± 5.5N.

23., it is characterized in that the width of mesh fabric bar is approximately 34cm according to the described smallclothes of top claim, panties or elongated pants.

24., it is characterized in that welding portion is strengthened by a bonding lining according to arbitrary described smallclothes, panties or elongated pants in top claim 22 and 23.

25. the method for mesh fabric Briefs, panties or elongated short underpants that are used to make satisfy the described feature of claim 21 to 24 is characterized in that following step:

-for Briefs, panties or elongated short underpants, width of preformed is approximately the mesh fabric bar of 34cm;

-for forming described Briefs, panties or elongated short underpants, cut out at least one mesh fabric sheet;

The described mesh fabric sheet of-welding or several mesh fabric sheet;

-coat several no thermoactive polyurethane adhesives to reinforcement material;

-an active binding material film of heat is bonded on the described material;

-cut out a plurality of reinforcements;

-utilize the heat of binding material active, described reinforcement is connected on the mesh fabric.

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