Adhesive tape for increasing down filling amount of down products and using method thereof

Abstract

The invention relates to the technical field of down product manufacturing, in particular to an adhesive tape for increasing down filling amount of down products and a using method thereof.The adhesive tape comprises the adhesive tape, the adhesive tape is provided with two oppositely-arranged and mutually-spaced binding faces, and the binding faces are provided with bonding materials; the adhesive tapes are arranged at intervals, so that the two binding surfaces of the adhesive tapes are respectively fixed between two adjacent fabrics, and the space between the two fabrics can be divided into a plurality of independent down filling channels by the adhesive tapes which are arranged at intervals. The space between the two pieces of fabric is divided into a plurality of independent down filling channels by arranging a plurality of spaced adhesive tapes between the two pieces of fabric, the binding surfaces of the adhesive tapes are spaced from each other, and the two binding surfaces can be respectively connected with the inner sides of the fabric, so that the two pieces of fabric are expanded from the middle to form a larger space, and correspondingly, the two pieces of fabric are more comfortable to wear. And the down filling channel is enlarged, so that more down can be filled, and the warm keeping effect of the down product is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of down product manufacturing, in particular to a rubber strip for increasing the filling amount of down products and a use method thereof. Background Art

[0002] The filling process of a down quilt is a key step in evenly filling the down into the quilt shell and ensuring its reasonable distribution and good warmth retention.

[0003] The main steps of filling down include: 1. Preparing the quilt shell: The quilt shell is usually made of high-count and high-density fabric that prevents down from drilling. The interior is divided into multiple independent small grids (such as squares or strips) by stitching to prevent down accumulation or displacement, so as to ensure that the down is evenly distributed; 2. Weighing and distributing down: Calculate the total filling amount according to the size of the quilt and the warmth requirements; 3. Filling method: Machine filling (modern mainstream): Use a filling machine to blow down into each grid of the quilt shell through air pressure. The machine can accurately control the filling amount of each grid with fast speed and high uniformity; 4. Sealing and fixing: After the filling is completed, use a sewing machine or high-temperature pressing technology to seal the opening of each grid to prevent down leakage. Finally, check whether there is any down leakage and pat the quilt to make the down evenly distributed.

[0004] The above-mentioned prior art has the following defects:

[0005] The space between the fabrics of the quilt is divided into multiple independent small grids by stitching. The interior of the small grid consists of only two sides, the upper and lower surfaces, thus forming a filling channel similar to an elliptical cross-section with openings at both ends (such as the attached Figure 5 This structure usually shortens the spacing between fabrics, and the closer to the two ends of the seam, the shorter the spacing, which results in a smaller cross-section of the filling channel and makes it impossible to fill it with more down. Summary of the Invention

[0006] In view of this, the object of the present invention is to provide a rubber strip for increasing the filling amount of down products, so as to solve the technical problem of low filling amount of down quilts in the prior art.

[0007] Based on the above-mentioned purpose, the present invention provides a rubber strip for increasing the filling amount of down products, including a rubber strip, wherein the rubber strip has two bonding surfaces that are oppositely arranged and spaced apart from each other, and an adhesive material is provided on the bonding surfaces to facilitate fixing the two bonding surfaces of the rubber strip between two adjacent pieces of fabric. A plurality of the rubber strips arranged at intervals can divide the space between the two pieces of fabric into a plurality of independent filling channels, and the spaced bonding surfaces cause the inner side surfaces of the two pieces of fabric to be stretched a distance apart, thereby increasing the cross-sectional size of the filling channel to increase the maximum filling amount of each filling channel.

[0008] As a preferred technical solution of the present invention, the rubber strip is a structure in which a strip is bent at least once in cross-section and forms two opposite supporting parts, and a fitting surface is formed on the side where the supporting parts are away from each other.

[0009] As a preferred technical solution of the present invention, the strip forms three component parts after being bent. The three component parts include two outermost supporting parts and an intermediate part for connecting the two supporting parts. The two ends of the intermediate part are respectively connected to one end of each of the two supporting parts at a certain angle, so as to form a fold angle at a certain angle.

[0010] As a preferred technical solution of the present invention, all the fold angles are located on the same side of the intermediate part, so that the cross-section of the rubber strip forms a "U" - shaped or "V" - shaped structure.

[0011] As a preferred technical solution of the present invention, all the fold angles are located on different sides of the intermediate part, so that the cross-section of the rubber strip forms a "Z" - shaped structure.

[0012] As a preferred technical solution of the present invention, the intermediate part includes a plurality of segments connected end to end. The two outermost segments are connected to one end of each of the supporting parts, so that the cross-section of the rubber strip forms a "W" - shaped structure.

[0013] As a preferred technical solution of the present invention, the fitting surface has a plurality of protruding parts to increase the friction coefficient between the fitting surface and the fabric.

[0014] As a preferred technical solution of the present invention, the length of the rubber strip does not exceed the length of the fabric.

[0015] As a preferred technical solution of the present invention, the adhesive material uses hot melt adhesive or pressure - sensitive adhesive.

[0016] As a preferred technical solution of the present invention, a method of using the above - mentioned rubber strip includes the following steps:

[0017] Step 1: Place two pieces of fabric horizontally and neatly, with one piece of fabric placed on top of the other, and then open them from the middle to form an opening;

[0018] Step 2: Put the above - mentioned rubber strip into the inner side of the two pieces of fabric from the opened opening;

[0019] Step 3: Respectively attach the two outermost fitting surfaces of the rubber strip to the inner sides of the two pieces of fabric through the adhesive material, so as to fix the rubber strip on the inner sides of the two pieces of fabric;

[0020] Step 4: Fix multiple rubber strips at intervals between the two pieces of fabric with reference to Step 3, so that the space between the two pieces of fabric is divided into multiple independent down - filling channels.

[0021] Advantages of the present invention: By arranging a plurality of spaced adhesive strips between two fabrics, the space between the two fabrics is divided into a plurality of independent down filling channels. Since the bonding surfaces of the adhesive strips are spaced from each other, the two bonding surfaces can be respectively connected to the inner sides of the fabrics, so that the two fabrics are stretched open from the middle to form a larger space. Correspondingly, the down filling channels will also become larger. Compared with the down filling channels made by sewing process, more down can be filled by using the adhesive strip process, improving the warmth retention effect of the down product. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0023] Figure 1 Schematic structural diagram of the first embodiment of the adhesive strip of the present invention;

[0024] Figure 2 Schematic structural diagram of the second embodiment of the adhesive strip of the present invention;

[0025] Figure 3 Schematic structural diagram of the third embodiment of the adhesive strip of the present invention;

[0026] Figure 4 Schematic structural diagram of the fourth embodiment of the adhesive strip of the present invention;

[0027] Figure 5 Schematic structural diagram of the prior art. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] To make the objectives, technical solutions and advantages of the present invention more clear and understandable, the following further details the present invention in combination with specific embodiments.

[0029] It should be noted that, unless otherwise defined, the technical or scientific terms used in the present invention should have the usual meanings understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0030] The present invention provides a rubber strip for increasing the filling capacity of down products, comprising a rubber strip having two opposing and spaced-apart bonding surfaces, with adhesive material provided on the bonding surfaces to facilitate fixing the two bonding surfaces of the rubber strip between two adjacent pieces of fabric. A plurality of spaced-apart rubber strips can divide the space between the two pieces of fabric into a plurality of independent filling channels. The spaced-apart bonding surfaces cause the inner side surfaces of the two pieces of fabric to be stretched a distance apart, thereby increasing the cross-sectional dimensions of the filling channels and increasing the maximum filling capacity of each of the filling channels.

[0031] The above technical solution can increase the filling amount of a single filling channel between adjacent fabrics in a down quilt. When in use, two pieces of fabric are placed horizontally and neatly, one of the fabrics is placed on the other, and then an opening is formed from the middle of the two fabrics; the above-mentioned adhesive strip is placed into the inner sides of the two fabrics through the opened opening; the two outermost bonding surfaces of the adhesive strip are respectively bonded to the inner sides of the two fabrics through adhesive materials, so that the adhesive strip is fixed to the inner sides of the two fabrics; according to the above steps, multiple adhesive strips are fixed between the two fabrics at intervals, so that the space between the two fabrics is filled. The down filling channel is divided into multiple independent filling channels. Due to the relative spacing between the two contact surfaces of the rubber strip, the distance between the two pieces of fabric is increased. Compared with the elliptical filling channels in the prior art, the existence of the spacing can prevent the outermost ends of the filling channels from being too narrow to hinder the entry of down, resulting in uneven filling of the down filling channels or dead corners due to clogging, thus achieving no-dead-corner warmth. At the same time, the existence of the spacing can also increase the cross-sectional size of the filling channel, that is, the diameter is larger, so that a single filling channel can be filled with more down than before, thereby increasing the filling capacity of the duvet;

[0032] In summary, the technical problem to be solved by the present invention is to increase the filling amount of down products (down quilts). The technical means to solve this problem is to set multiple spaced adhesive strips between two fabrics. The adhesive strips push the two fabrics apart from the inside, and the adjacent adhesive strips cooperate with each other to divide the space between the two fabrics into multiple larger down filling channels. Compared with the down filling channels formed by sewing technology in the prior art, more down can be filled. The internal logic for this solution to increase the down filling amount is as follows: The adhesive strips increase the distance between the two fabrics. Since the two bonding surfaces of the adhesive strips are respectively in contact with the inner sides of the fabrics, and there is a distance between the two bonding surfaces itself, after the two fabrics are connected to the adhesive strips, the distance between the fabrics will naturally increase, resulting in a larger space. The fundamental reason why the down filling amount of the sewn-down filling channels in the prior art is less is that sewing does not increase the distance between the two fabrics because the yarn cannot provide the connection support between the two fabrics.

[0033] In this embodiment, the adhesive strip has a structure in which a strip is bent at least once in the cross-section to form two opposite support portions, and the sides of the support portions away from each other form bonding surfaces.

[0034] Adopting the above technical solution can improve the touch of the down quilt. The strip is made of a flexible material, and the flexibility can ensure that the down quilt has good softness, without making the touch feel rigid or having a foreign body sensation, thus improving the use experience of the down quilt. The flexible material can be a fabric with good breathability.

[0035] Regarding whether to choose a rigid or flexible material for the adhesive strip, generally speaking, since the adhesive strip is used in down products (down quilts), and down quilts usually pursue softness and comfort, it is natural that a rigid material cannot be selected for the adhesive strip. What our company really wants to protect is the flexible adhesive strip. Moreover, after the flexible adhesive strip is processed into a strip shape, it can be wound into something similar to an ordinary double-sided tape, which is convenient to carry. Although a rigid adhesive strip can increase the down filling amount, it will obviously increase the hardness of the down quilt, resulting in a significant decrease in the fluffiness effect. The rigid material may also affect the soft and conforming degree of the quilt, restricting turning over during sleep. However, the relative advantage is that the rigid material adhesive strip can help maintain the three-dimensional structure of the quilt, prevent uneven distribution of down or local thinning after long-term use. There is also a market demand for it, but the mainstream adhesive strips are mainly made of flexible materials.

[0036] In this embodiment, after the strip is bent, it forms three component parts. The three component parts include two support portions located on the outermost sides, and an intermediate portion for connecting the two support portions. The two ends of the intermediate portion are respectively connected to one end of each of the two support portions at a certain angle, thus forming a fold angle at a certain angle.

[0037] Adopting the above technical solution can facilitate the folding of the rubber strip. Through the folding angle formed by bending, before the rubber strip is used, it can be folded according to the indentation at the folding angle by the mutual extrusion between the supporting parts, thereby reducing the volume and being convenient for carrying. When actually used, the indentation can facilitate the tensioning to drive the middle part to unfold.

[0038] As Figure 1 and Figure 2 shown, in this embodiment, all the folding angles are located on the same side of the middle part, so that the cross-section of the rubber strip forms a "U"-shaped or "V"-shaped structure;

[0039] Adopting the above technical solution can increase the cross-sectional size of the down filling channel with a special structure, thereby increasing the maximum down filling amount of each down filling channel. Taking the rubber strip with a "U"-shaped cross-section as an example, the middle part between the two supporting parts can ensure that the two supporting parts are arranged horizontally, so that when the fabric is not filled with down, a down filling channel with a square-shaped cross-section can also be formed through tensioning. Compared with the oval down filling channel in the prior art, the distance between the two ends of the square-shaped down filling channel is exactly the same as the distance in the middle, without decreasing, avoiding blocking the down, and preventing the down from getting stuck in the dead corner, resulting in the situation of dead corners in down filling.

[0040] As Figure 3 and Figure 4 shown, in this embodiment, all the folding angles are located on different sides of the middle part, so that the cross-section of the rubber strip forms a "Z"-shaped structure;

[0041] Adopting the above technical solution can increase the cross-sectional size of the down filling channel in another structural form, achieving the effect of increasing the internal space of the down filling channel. The "Z" shape enables a certain degree of relative movement freedom between the two fabrics in the horizontal direction. When the fabric is pressed, the adjacent upper and lower fabrics will move relative to each other in the horizontal direction, dispersing the pressure into two directions: vertical and horizontal, making the duvet have a better anti-deformation effect. In addition, the rubber strip with a "Z"-shaped cross-section can effectively solve the problem of dead corners in the down filling of traditional duvets. This "Z" - shaped structure can increase the down filling amount compared with the traditional flat rubber strip process. The down will form a superimposed effect inside, providing dead - corner - free warmth. On this basis, there is also a rubber strip with an "X" - shaped structure, and the principle is basically similar.

[0042] In this embodiment, the middle part includes a plurality of segments connected end to end, and the two outermost segments are connected to one end of each of the supporting parts, so that the cross-section of the rubber strip forms a "W"-shaped structure;

[0043] The above technical solution can further increase the cross-sectional size of the filling channel. The middle part is composed of multiple sections folded together. When filling with down, the folded part will be stretched out by the down and gradually expand. Compared with the single-section middle part, the multi-section design can maximize the internal space of the filling channel, so that more down can be filled in.

[0044] In this embodiment, the fitting surface has a plurality of protrusions to increase the friction coefficient between the fitting surface and the fabric;

[0045] The above technical solution can improve the surface roughness of the bonding surface, which is conducive to cooperating with the adhesive material to tightly fix the bonding surface of the strip to the inner side of the fabric, preventing loose fixation due to the smooth surface of the fabric.

[0046] In this embodiment, the length of the adhesive strip does not exceed the length of the fabric;

[0047] The above technical solution can ensure that the length of the rubber strip can meet the filling requirements of the fabric and ensure the sealing effect on both sides of the filling channel. At the same time, the length of the rubber strip should not be too long, so that when the opening of each filling channel is sealed with a sewing machine or high-temperature pressing technology, the stitches and the rubber strip will not interfere with each other, thereby improving the flatness and sealing of the fabric.

[0048] In this embodiment, the adhesive material is hot melt adhesive or pressure sensitive adhesive;

[0049] The above technical solution can be used to bond the adhesive strip between two pieces of cloth. Taking pressure-sensitive hot-melt tape as the adhesive material as an example, when using it, first tear off the release paper, then place the adhesive strip in a fixed position between the two pieces of cloth, ensure that the pressure-sensitive hot-melt tape on the bonding surface is bonded to the inner side of the fabric, and finally iron the pressure-sensitive hot-melt tape and wait for a period of time to cool. The bonding strength is strong and the flatness is high.

[0050] Working principle: When using this strip, please follow the steps below:

[0051] Step 1: Place two pieces of fabric horizontally, one on top of the other, and then stretch them apart to form an opening.

[0052] Step 2: Place the above-mentioned adhesive strips into the inner sides of the two pieces of fabric through the stretched opening;

[0053] Step 3: Respectively attach the two outermost bonding surfaces of the rubber strip to the inner sides of the two pieces of fabric through an adhesive material. Here, a pressure-sensitive hot melt tape is used as the adhesive material as an example. When in use, first tear off the release paper, then place the rubber strip between the two pieces of fabric to fix the position, ensure that the pressure-sensitive hot melt tape on the bonding surface is attached to the inner side of the fabric, and finally iron the pressure-sensitive hot melt tape and wait for a period of time to cool. It has strong bonding strength and high flatness, so as to fix the rubber strip on the inner sides of the two pieces of fabric;

[0054] Step 4: Fix multiple rubber strips at intervals between the two pieces of fabric with reference to Step 3, so that the space between the two pieces of fabric is divided into multiple independent down filling channels.

[0055] Those of ordinary skill in the art should understand that: The discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.

[0056] The present invention aims to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. A strip for increasing the filling amount of down products, characterized in that, It includes a rubber strip, which has two bonding surfaces that are oppositely arranged and spaced apart from each other. Adhesive material is provided on the bonding surfaces to facilitate fixing the two bonding surfaces of the rubber strip between two adjacent pieces of fabric. A plurality of the rubber strips arranged at intervals can divide the space between the two pieces of fabric into a plurality of independent filling channels. The spaced bonding surfaces cause the inner side surfaces of the two pieces of fabric to be stretched a distance apart, thereby increasing the cross-sectional size of the filling channel to increase the maximum filling amount of each filling channel.

2. The rubber strip for increasing the down filling amount of a down product according to claim 1, characterized in that The adhesive strip is a strip that is bent at least once in a cross section to form a structure with two opposite supporting parts, and the sides of the supporting parts that are away from each other form a fitting surface.

3. The strip for increasing the down filling amount of a down product according to claim 2, characterized in that, After being bent, the strip is formed into three components, including two support parts located on the outermost sides, and a middle part for connecting the two support parts. The two end parts of the middle part are respectively connected to one end of the two support parts at a certain angle, thereby forming a fold angle of a certain angle.

4. The rubber strip for increasing the down filling amount of a down product according to claim 3, wherein All the folded corners are located on the same side of the middle portion, so that the cross section of the rubber strip forms a "U"-shaped or "V"-shaped structure.

5. The rubber strip for increasing the filling amount of down products according to claim 3, characterized in that All the folded corners are located on different sides of the middle portion, so that the cross section of the rubber strip forms a "Z"-shaped structure.

6. The rubber strip for increasing the filling amount of down products according to claim 3, characterized in that The middle portion includes a plurality of segments connected end to end, and the two outermost segments are connected to one end of each supporting portion, so that the cross section of the rubber strip forms a "W"-shaped structure.

7. The rubber strip for increasing the filling amount of down products according to claim 2, characterized in that, The fitting surface has a plurality of protrusions to increase the friction coefficient between the fitting surface and the fabric.

8. The rubber strip for increasing the down filling amount of a down product according to claim 1, wherein The length of the adhesive strip does not exceed the length of the fabric.

9. The rubber strip for increasing the filling amount of down products according to claim 1, characterized in that, The bonding material is hot melt adhesive or pressure sensitive adhesive.

10. A method of using the adhesive strip for increasing the filling amount of down products according to any one of claims 1-9, characterized in that, The steps include: Step 1: Place two pieces of fabric horizontally, one on top of the other, and then stretch them apart to form an opening. Step 2: Place the above-mentioned adhesive strips into the inner sides of the two pieces of fabric through the stretched opening; Step 3: respectively adhere the two outermost bonding surfaces of the adhesive strip to the inner sides of the two pieces of fabric using adhesive material, thereby fixing the adhesive strip to the inner sides of the two pieces of fabric; Step 4: Referring to step 3, fix a plurality of rubber strips between two pieces of fabric at intervals, so that the space between the two pieces of fabric is divided into a plurality of independent filling channels.

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