CN115742470A - Skin-friendly elastic fabric and preparation method thereof - Google Patents
Skin-friendly elastic fabric and preparation method thereof Download PDFInfo
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- CN115742470A CN115742470A CN202211348264.7A CN202211348264A CN115742470A CN 115742470 A CN115742470 A CN 115742470A CN 202211348264 A CN202211348264 A CN 202211348264A CN 115742470 A CN115742470 A CN 115742470A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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Abstract
The invention relates to a skin-friendly elastic fabric and a preparation method thereof, wherein the preparation method of the skin-friendly elastic fabric comprises the following steps: step 1: carrying out spunlace compounding on a thermoplastic fiber surface layer and a cotton fiber surface layer and drying to obtain a composite fabric, and mechanically pleating the composite fabric into a wave shape; and 2, step: and (2) taking two layers of the wavy composite fabric prepared in the step (1), enabling the thermoplastic fiber surface layers of the two layers to be close to each other, carrying out thermal compounding by taking an elastomer clamped between the two layers as an intermediate layer, and cooling and shaping the composite fabric after compounding to obtain the skin-friendly elastic fabric. The thermoplastic fiber surface layers of the two layers of composite fabrics are thermally compounded by the middle layer formed by the elastomer, and the composite fabrics are wavy, so that the whole skin-friendly elastic fabric has good tensile property, and simultaneously, the skin-friendly performance is good because both sides of the skin-friendly composite fabric are cotton fiber surface layers.
Description
Technical Field
The invention belongs to the field of composite fabrics, and particularly relates to a skin-friendly elastic fabric and a preparation method thereof.
Background
At present, skin contact layers in elastic waist bandages in disposable daily necessities and medical consumables are mainly spunbond material layers or elastic threads and the like, and consumers feel uncomfortable feelings such as itching and the like when using the elastic waist bandages. The material prepared by the spunlace process is not easy to fall off the cotton wool, is soft and comfortable, is widely used for daily skin-friendly articles, and simultaneously, the cotton fiber is not sensitized, is soft and breathable and has good sanitary performance, so that the elastic bandage prepared by the spunlace process of the cotton fiber has good skin-friendly performance and sanitary performance. However, because cotton fibers are not heat-resistant and the special property of the spunlace process causes the difficulty in manufacturing the elastic bandage by the spunlace process of the cotton fibers, the current CN114875685A "production method of elastic non-woven fabric" discloses the following steps: s1: preparing a coating; s2: soaking, washing and drying for later use; according to the invention, the elastic net is compounded into the non-woven fabric up and down in a coating manner, a large amount of chemical adhesives are required, and the non-woven fabric is not friendly to sensitive people. CN215904049U "a high elasticity non-woven fabrics", it discloses that the outside of upper portion cotton layer and lower part cotton layer is provided with the elastic band of sewing up, and this patent compounds cotton layer and elastic band through the mode of sewing up, and the technology is more traditional, the cost of labor is high.
Disclosure of Invention
In order to achieve the purpose, the invention aims to provide the skin-friendly elastic fabric which is simple and convenient in preparation method and has good elasticity.
In order to achieve the purpose, the technical scheme of the invention is as follows: a preparation method of a skin-friendly elastic fabric comprises the following steps:
step 1: carrying out spunlace compounding on a thermoplastic fiber surface layer and a cotton fiber surface layer and drying to obtain a composite fabric, and mechanically pleating the composite fabric into a wave shape;
and 2, step: and (2) taking two layers of the wavy composite fabric prepared in the step (1), enabling the thermoplastic fiber surface layers of the two layers to be close to each other, carrying out thermal compounding by taking an elastomer clamped between the two layers as an intermediate layer, and cooling and shaping the composite fabric after compounding to obtain the skin-friendly elastic fabric.
The beneficial effects of the above technical scheme are that: the thermoplastic fiber surface layers of the two layers of composite fabrics are thermally compounded by the middle layer formed by the elastomer, and the composite fabrics are wavy, so that the whole skin-friendly elastic fabric has good tensile property, and simultaneously, the skin-friendly performance is good because both sides of the skin-friendly composite fabric are cotton fiber surface layers.
The preparation method of the composite fabric in the step 1 in the technical scheme is as follows:
step 1.1: respectively carding the cotton fibers and the thermoplastic fibers into a web to prepare a cotton fiber surface layer and a thermoplastic fiber surface layer;
step 1.2: the thermoplastic fiber surface layers are back-folded at even intervals along the length direction of the thermoplastic fiber surface layers to form thick mesh layer regions, the region between two adjacent thick mesh layer regions is a thin mesh layer region, and the protruding directions of the thick mesh layer regions are consistent;
step 1.3: superposing the thermoplastic fiber surface layer treated in the step 1.2 with the cotton fiber surface layer, wherein the cotton fiber surface layer is positioned on one side of the thermoplastic fiber surface layer, which is protruded away from the thick net layer area;
step 1.4: and (2) carrying out spunlace compounding on the thermoplastic fiber surface layer and the cotton fiber surface layer which are superposed in the step (1.3), drying after compounding to obtain a composite fabric, pleating the composite fabric into waves, and placing the waves into a fixed pleater.
The beneficial effects of the above technical scheme are that: the preparation method is simple and convenient, and the composite performance between the cotton fiber surface layer and the thermoplastic fiber surface layer after the composite is good.
In the technical scheme, the gram weight of the cotton fiber surface layer in the step 1.1 is 15-20g/m 2 (ii) a The gram weight of the thermoplastic fiber surface layer is 10-15g/m 2 。
The beneficial effects of the above technical scheme are that: the thickness is moderate.
In the above technical solution, after the composite fabric is pleated in the step 1.4, the convex side of each thick mesh layer region on the composite fabric forms a peak and is bonded with the middle layer.
The beneficial effects of the above technical scheme are that: the bonding effect is good, and meanwhile, the thermoplastic fiber surface layer is bonded with the middle layer by forming the thick net layer area through back folding, so that the middle layer can be prevented from being melted and infiltrated into the cotton fiber surface layer, and the skin-friendly performance of the cotton fiber surface layer is kept all the time.
In the technical scheme, in the step 1.2, the width of the thick mesh layer area is 2-4cm, the thickness of the thick mesh layer area is 0.1-0.2mm, and the width of the thin mesh layer area is 4-6cm, and the thickness of the thin mesh layer area is 0.05-0.1mm.
The beneficial effects of the above technical scheme are that: therefore, the bonding effect of the composite fabric and the middle layer is better when the composite fabric and the middle layer are thermally compounded.
In the technical scheme, the elastomer is a TPU elastomer or a spandex elastomer.
The beneficial effects of the above technical scheme are that: it has good elasticity.
In the above technical solution, the convex side of each thick mesh layer region in step 2 is bonded to the intermediate layer, and a thin mesh layer region between two adjacent thick mesh layer regions and the intermediate layer are surrounded to form a through hole.
The beneficial effects of the above technical scheme are that: this provides a stretch margin for stretching the intermediate layer.
In the technical scheme, the temperature of the thermal compounding in the step 2 is 100-140 ℃.
The beneficial effects of the above technical scheme are that: the compounding temperature is moderate.
In the step 2 of the technical scheme, the cooling and shaping are to cool the skin-friendly elastic fabric after thermal compounding for 2-3h at room temperature in a natural relaxation state.
The beneficial effects of the above technical scheme are that: therefore, the stress in the skin-friendly elastic fabric can be released as much as possible, so that the later expansion and contraction are natural.
The invention also aims to provide the skin-friendly elastic fabric with good elasticity and good skin-friendly performance.
In order to achieve the purpose, the technical scheme of the invention is as follows: the skin-friendly elastic fabric is prepared by the preparation method of the skin-friendly elastic fabric.
The beneficial effects of the above technical scheme are that: the fabric has good skin-friendly property, good elasticity and good tensile property.
Drawings
FIG. 1 is a schematic illustration of the thermoplastic fiber facing being back folded in accordance with example 1 of the present invention;
FIG. 2 is a schematic structural diagram of the composite fabric in example 1 of the present invention;
FIG. 3 is a schematic illustration of a pleated composite fabric according to example 1 of the present invention;
fig. 4 is a schematic structural view of the skin-friendly elastic fabric in embodiment 1 of the present invention.
In the figure: 1 composite fabric, 11 thermoplastic fiber surface layers, 111 thick mesh layer areas, 112 thin mesh layer areas, 12 cotton fiber surface layers and 2 middle layers.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is provided for the purpose of facilitating and clearly illustrating embodiments of the present invention.
Example 1
As shown in fig. 1 to fig. 4, this embodiment provides a method for preparing a skin-friendly elastic fabric, including the following steps:
step 1: carrying out spunlace compounding and drying on a thermoplastic fiber surface layer 11 and a cotton fiber surface layer 12 to obtain a composite fabric 1, and mechanically pleating the composite fabric 1 into a wave shape;
and 2, step: taking two layers of the wavy composite fabric 1 prepared in the step 1, enabling the sides of the thermoplastic fiber surface layers 11 of the two layers to be close to each other, performing thermal compounding by taking an elastomer clamped between the two layers as a middle layer 2, cooling and shaping the composite fabric after compounding to obtain the skin-friendly elastic fabric, and performing thermal compounding on the middle layer formed by the elastomer on the thermoplastic fiber surface layer sides of the two layers of the composite fabric, wherein the composite fabric is wavy, so that the tensile property of the whole skin-friendly elastic fabric is good, and meanwhile, because the two sides of the skin-friendly composite fabric are both cotton fiber surface layers, the skin-friendly performance is good.
The preparation method of the composite fabric 1 in the step 1 in the technical scheme is as follows:
step 1.1: carding cotton fibers and thermoplastic fibers into a web respectively to prepare a cotton fiber surface layer 12 and a thermoplastic fiber surface layer 11;
step 1.2: the thermoplastic fiber surface layer 11 is folded back along the length direction at uniform intervals to form thick net layer areas 111, the area between two adjacent thick net layer areas 111 is a thin net layer area 112, and the protruding directions of the thick net layer areas 111 are consistent;
step 1.3: superposing the thermoplastic fiber surface layer 11 treated in the step 1.2 with the cotton fiber surface layer 12, wherein the cotton fiber surface layer 12 is positioned on the side of the thermoplastic fiber surface layer 11 protruding away from the thick net layer area 111;
step 1.4: and (2) carrying out spunlace compounding on the thermoplastic fiber surface layer 11 and the cotton fiber surface layer 12 which are superposed in the step (1.3), drying after compounding to obtain a composite fabric 1, pleating the composite fabric 1 into waves and placing the waves in a fixed pleater.
Cotton in the step 1.1 of the above technical schemeThe grammage of the fibrous face layer 12 is 15-20g/m 2 (ii) a The gram weight of the thermoplastic fiber surface layer 11 is 10-15g/m 2 Its thickness is moderate.
In the above technical solution, after the composite fabric 1 is pleated in step 1.4, the convex side of each thick mesh layer region 111 forms a peak and is bonded with the intermediate layer 2, so that the bonding effect is good, and meanwhile, since the thermoplastic fiber surface layer is folded back to form a thick mesh layer region to be bonded with the intermediate layer, the intermediate layer can be prevented from being melted and infiltrated into the cotton fiber surface layer, so that the skin-friendly performance of the cotton fiber surface layer is maintained all the time.
In the above technical solution, in the step 1.2, the width of the thick mesh layer region 111 is 2-4cm (the distance between two adjacent thin mesh layer regions), the thickness is 0.1-0.2mm, the width of the thin mesh layer region 112 is 4-6cm (the distance between two adjacent thick mesh layer regions), and the thickness is 0.05-0.1mm, so that the bonding effect of the composite fabric and the intermediate layer is better when the composite fabric is thermally compounded.
The elastomer in the technical scheme is a TPU elastomer or a spandex elastomer, and the elasticity is good.
In the above technical solution, the convex side of each thick mesh layer region 111 in the step 2 is bonded to the middle layer 2, and a through hole is formed between the thin mesh layer region 112 between two adjacent thick mesh layer regions 111 and the middle layer 2, so that stretching allowance can be provided for stretching of the middle layer.
In the technical scheme, the temperature of the thermal compounding in the step 2 is 100-140 ℃, and the compounding temperature is moderate.
In the technical scheme, the step 2 of cooling and shaping is to cool the skin-friendly elastic fabric subjected to thermal compounding for 2-3h at room temperature in a natural relaxation state, so that the stress in the skin-friendly elastic fabric can be released as much as possible, and the later expansion and contraction are natural.
Example 2
Continuing with fig. 4 in detail, this embodiment provides a skin-friendly elastic fabric, which is prepared by the preparation method of the skin-friendly elastic fabric described in embodiment 1, and has good skin-friendly property, good elasticity and better tensile property.
Example 3
The embodiment provides a preparation method of a skin-friendly elastic fabric, which comprises the following steps:
s1: carding to form a net, wherein the net is made of hydrophilic polyester fibers (thermoplastic fibers) and pure cotton fibers (cotton fibers), wherein the hydrophilic polyester fibers are spun-laced special hydrophilic polyester staple fibers with the fineness of 1.50-1.80dtex multiplied by the length of 36-40mm and the crimp number of 11.0-12.0/25 mm; the pure cotton fibers are pure cotton fibers with the fineness of 1.11-1.43dtex multiplied by the length of 23-33mm and the micronaire value of 3.7-4.2, wherein the dosage specific gravity of the hydrophilic polyester fibers and the pure cotton fibers is 1. Wherein the gram weight of the hydrophilic polyester fiber surface layer (thermoplastic fiber surface layer) is controlled to be 10-15g/m 2 (ii) a The gram weight of the pure cotton fiber surface layer (cotton fiber surface layer) is controlled to be 20-30g/m 2 . Wherein the hydrophilic polyester fiber surface layer is back-folded into a surface layer with interval thickness (a structure that a thick mesh layer area and a thin mesh layer area are alternated), wherein the width of the thick mesh layer area in the hydrophilic polyester fiber surface layer is 2.0-4.0cm, and the thickness is 0.1-0.2cm; the width of the thin mesh layer is 4.0-6.0cm, and the thickness is 0.05-0.1cm. The net laying structure is that the pure cotton fiber surface layer is arranged at the lower part, and the hydrophilic polyester fiber surface layer is arranged at the upper part.
S2: and (3) spunlacing and drying, namely reinforcing the laid composite net layer by using a spunlace process, and drying at the temperature of 100-120 ℃ in an oven to obtain the composite fabric.
S3: and (3) mechanically pleating, namely mechanically pleating the spunlaced and dried composite fabric in a fixed die to form pleating the composite fabric at intervals of 3.0-5.0cm, wherein the thick mesh layer region is a pleating turning part (corresponding to the position of a wave crest) and is positioned above the pleating turning part, and the pleated composite fabric in the fixed die is transferred together.
S4: and (2) thermal compounding, namely selecting a TPU elastomer as a middle layer, transferring the two composite surface layers to the upper layer and the lower layer of the elastomer under the condition that the TPU elastomer is fixed and stretched by mechanical equipment, wherein the thick mesh layer region is directly contacted with the elastomer, and finally thermally compounding the elastomer by an oven, wherein the temperature of the oven is 100-140 ℃.
And S5, cooling and shaping, namely cooling the composite skin-friendly elastic fabric for 2-3 hours at room temperature in a natural relaxation state.
The skin-friendly elastic fabric prepared by the embodiment has extremely high elasticity, strong resilience, softness, comfort, good sanitation and firm compounding, and is more suitable for disposable medical elastic products such as skin-friendly elastic bandages and skin-friendly restraining belts.
Example 4
The difference from the embodiment 3 is that the thermoplastic fiber in the step S1 is hydrophilic polypropylene short fiber, the specification of which is the special hydrophilic polypropylene short fiber for spunlace with the fineness of 0.60-0.80dtex multiplied by the length of 35-40mm and the crimp number of 11.0-12.0/25 mm; wherein the grammage of the thermoplastic fiber surface layer is controlled to be 10-12g/m 2 (ii) a The gram weight of the pure cotton fiber surface layer is controlled to be 18-25g/m 2 。
The skin-friendly elastic fabric prepared by the embodiment has high elasticity, strong recoverability, softness, comfort and lighter overall weight, and is more suitable for disposable portable products such as waist elastic materials of paper diapers and menstrual pants.
It should be noted that the above detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein.
Also, when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures.
For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
The foregoing is illustrative of the preferred embodiments of the present invention, and is not to be construed as limiting the invention in any way; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (10)
1. The preparation method of the skin-friendly elastic fabric is characterized by comprising the following steps of:
step 1: carrying out spunlace compounding and drying on a thermoplastic fiber surface layer (11) and a cotton fiber surface layer (12) to obtain a composite fabric (1), and mechanically pleating the composite fabric (1) into a wave shape;
step 2: taking two layers of the wavy composite fabric (1) prepared in the step (1), enabling the sides of the thermoplastic fiber surface layers (11) of the two layers to be close to each other, performing thermal compounding by using an elastomer clamped between the two layers as an intermediate layer (2), and cooling and shaping the composite fabric after compounding to obtain the skin-friendly elastic fabric.
2. The preparation method of the skin-friendly elastic fabric according to claim 1, wherein the preparation method of the composite fabric (1) in the step 1 is as follows:
step 1.1: carding cotton fibers and thermoplastic fibers into webs respectively to prepare a cotton fiber surface layer (12) and a thermoplastic fiber surface layer (11);
step 1.2: the thermoplastic fiber surface layer (11) is uniformly folded back along the length direction of the thermoplastic fiber surface layer at intervals to form thick mesh layer areas (111), the area between every two adjacent thick mesh layer areas (111) is a thin mesh layer area (112), and the protruding directions of the thick mesh layer areas (111) are consistent;
step 1.3: superposing the thermoplastic fiber surface layer (11) treated in the step 1.2 with the cotton fiber surface layer (12), wherein the cotton fiber surface layer (12) is positioned on the side, protruding away from the thick mesh layer area (111), of the thermoplastic fiber surface layer (11);
step 1.4: and (2) carrying out spunlace compounding on the thermoplastic fiber surface layer (11) and the cotton fiber surface layer (12) which are superposed in the step (1.3), drying after compounding to obtain a composite fabric (1), and pleating the composite fabric (1) into waves and placing the waves in a fixed pleater.
3. The method for preparing the skin-friendly elastic fabric according to claim 2, wherein the grammage of the cotton fiber surface layer (12) in the step 1.1 is 15-20g/m 2 (ii) a The grammage of the thermoplastic fiber surface layer (11) is 10-15g/m 2 。
4. The preparation method of the skin-friendly elastic fabric according to claim 2, wherein in the step 1.2, the width of the thick mesh layer area (111) is 2-4cm, the thickness is 0.1-0.2mm, and the width of the thin mesh layer area (112) is 4-6cm, and the thickness is 0.05-0.1mm.
5. The process for preparing a skin-friendly elastic fabric according to claim 2, wherein after pleating the composite fabric (1) in step 1.4, the convex side of each thick web region (111) thereon forms a peak and is bonded to the intermediate layer (2).
6. The preparation method of the skin-friendly elastic fabric according to claim 2, wherein the elastomer is a TPU elastomer or a spandex elastomer.
7. The preparation method of the skin-friendly elastic fabric according to claim 5, wherein in the step 2, the convex side of each thick mesh layer region (111) is bonded with the middle layer (2), and a through hole is formed between the thin mesh layer region (112) between two adjacent thick mesh layer regions (111) and the middle layer (2) in a surrounding manner.
8. The method for preparing the skin-friendly elastic fabric according to claim 1, wherein the temperature of thermal compounding in the step 2 is 100-140 ℃.
9. The preparation method of the skin-friendly elastic fabric according to claim 1, wherein the step 2 of cooling and shaping is to cool the skin-friendly elastic fabric subjected to thermal compounding for 2-3 hours at room temperature in a natural relaxation state.
10. A skin-friendly elastic fabric, which is characterized by comprising the skin-friendly elastic fabric prepared by the preparation method of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211348264.7A CN115742470A (en) | 2022-10-31 | 2022-10-31 | Skin-friendly elastic fabric and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211348264.7A CN115742470A (en) | 2022-10-31 | 2022-10-31 | Skin-friendly elastic fabric and preparation method thereof |
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| Publication Number | Publication Date |
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| CN115742470A true CN115742470A (en) | 2023-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202211348264.7A Pending CN115742470A (en) | 2022-10-31 | 2022-10-31 | Skin-friendly elastic fabric and preparation method thereof |
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| CN (1) | CN115742470A (en) |
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- 2022-10-31 CN CN202211348264.7A patent/CN115742470A/en active Pending
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