CN113715442A - Multifunctional spun-melt non-woven fabric and preparation method thereof - Google Patents
Multifunctional spun-melt non-woven fabric and preparation method thereof Download PDFInfo
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- CN113715442A CN113715442A CN202111019326.5A CN202111019326A CN113715442A CN 113715442 A CN113715442 A CN 113715442A CN 202111019326 A CN202111019326 A CN 202111019326A CN 113715442 A CN113715442 A CN 113715442A
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- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000012530 fluid Substances 0.000 claims abstract description 80
- 239000004744 fabric Substances 0.000 claims abstract description 61
- 239000004033 plastic Substances 0.000 claims abstract description 41
- 230000008961 swelling Effects 0.000 claims abstract description 41
- 239000000835 fiber Substances 0.000 claims abstract description 40
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 27
- 238000000034 method Methods 0.000 claims description 16
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- 239000011324 bead Substances 0.000 claims description 8
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- 239000011265 semifinished product Substances 0.000 claims description 6
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- 230000000694 effects Effects 0.000 abstract description 3
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- 239000010687 lubricating oil Substances 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 5
- 238000001467 acupuncture Methods 0.000 description 3
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/022—Non-woven fabric
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
- B32B25/04—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B25/08—Layered products comprising a layer of natural or synthetic rubber comprising rubber as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/12—Layered products comprising a layer of synthetic resin next to a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
- B32B27/304—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl halide (co)polymers, e.g. PVC, PVDC, PVF, PVDF
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2571/00—Protective equipment
- B32B2571/02—Protective equipment defensive, e.g. armour plates, anti-ballistic clothing
Abstract
The application relates to the field of non-woven fabrics, and particularly discloses a multifunctional spun-melt non-woven fabric and a preparation method thereof. A multifunctional spun-bonded non-woven fabric comprises an expansion plastic fluid, a PVC fabric and a fiber mesh layer, wherein the expansion plastic fluid, the PVC fabric and the fiber mesh layer are sequentially arranged from inside to outside, a through hole for a needle machine to penetrate is formed in the PVC fabric layer, and the through hole is not communicated with the inside of the PVC fabric. The preparation method comprises the following steps: step one, preparing a swelling fluid: and step two, preparing the non-woven fabric. The multifunctional spun-melt non-woven fabric has the dual-performance effects of flexibility and hardness, the application range of the non-woven fabric is widened, and the impact resistance and puncture resistance of the non-woven fabric are improved.
Description
Technical Field
The application relates to the field of non-woven fabrics, in particular to a multifunctional spun-melt non-woven fabric and a preparation method thereof.
Background
Nonwoven fabrics, also known as nonwovens, are fabrics formed without spinning a woven fabric by orienting or randomly arranging textile staple fibers or filaments to form a web structure, which is then consolidated mechanically, thermally, or chemically. The non-woven fabric does not need knitting operation, so the non-woven fabric has the advantages of short process flow, high production speed, high yield, low cost, wide application, wide raw material source and the like.
The existing nonwoven fabrics are made of fibers, so that the nonwoven fabrics have flexibility, and the application of the nonwoven fabrics is based on the flexibility, such as the application in medical treatment, decoration, clothing, industry and the like.
However, in some working conditions, not only the flexibility of the nonwoven fabric is required, but also the stiffness of the nonwoven fabric is required to be increased, for example, the safety shoe needs certain impact resistance, and the garment needs certain impact resistance and puncture resistance to prevent traffic accidents, accidents and the like.
Currently, there is no textile that can provide both flexible and rigid properties. In order to solve the above technical problems, it is required to develop a multifunctional spunmelt nonwoven fabric.
Disclosure of Invention
In order to endow the textile with both flexible performance and rigid performance, the application provides a multifunctional spunmelt nonwoven fabric and a preparation method thereof.
In a first aspect, the present application provides a multifunctional spunmelt nonwoven fabric, which adopts the following technical scheme:
a multifunctional spun-bonded non-woven fabric comprises an expansion plastic fluid, a PVC fabric and a fiber mesh layer, wherein the expansion plastic fluid, the PVC fabric and the fiber mesh layer are sequentially arranged from inside to outside, a through hole for a needle machine to penetrate is formed in the PVC fabric layer, and the through hole is not communicated with the inside of the PVC fabric.
By adopting the technical scheme, the apparent viscosity eta of the dilatancy fluid is increased along with the increase of the shearing stress or the shearing rate of the dilatancy fluid, so that when the dilatancy fluid encounters impact, the moisture in the dilatancy fluid cannot fill the gaps among the particles, the viscous resistance of the dilatancy fluid is increased suddenly until the dilatancy fluid cannot flow, namely the larger the impact force encountered by the dilatancy fluid is, the higher the impact resistance and puncture resistance of the dilatancy fluid is, the larger the impact resistance and puncture resistance of the dilatancy fluid is, the dilatancy fluid can play a role in protecting the non-woven fabric when being placed in the non-woven fabric, and the hardness of the dilatancy fluid is achieved.
In the conventional use process, the swelling plastic fluid is subjected to smaller shear stress or shear rate, so that the swelling plastic fluid can flow and deform to achieve the flexible performance.
The PVC cloth has excellent sealability so that the dilatant fluid can be loaded in the nonwoven fabric. The through holes play a role in abdication, so that the PVC cloth can not be pierced in the needling process of the non-woven cloth, and in the needling process of the non-woven cloth, the fiber mesh layers at two sides of the non-woven cloth can be connected together by winding the through holes, thereby ensuring the compounding rate of the fiber mesh layers and the PVC cloth.
In conclusion, due to the adoption of the swelling plastic fluid, the non-woven fabric obtains the dual-performance effects of flexibility and hardness, the application range of the non-woven fabric is improved, and the impact resistance and puncture resistance of the non-woven fabric are improved.
Preferably, the inner side of the PVC cloth is sleeved with a rubber sealing layer.
Through adopting above-mentioned technical scheme, the rubber sealing layer has flexibility, leakproofness and heat-proof quality for the swelling plasticity fluid is difficult to expand broken PVC cloth, can reduce the probability that swelling plasticity fluid evaporates simultaneously, guarantees the stability of swelling plasticity fluid.
Preferably, the swelling fluid comprises the following raw materials in percentage by weight (2-3): 1 and water.
By adopting the technical scheme, on one hand, the cost of the starch and the water is low, and the method is suitable for industrial production of the non-woven fabric; on the other hand, starch and water have good fluidity at this ratio, and have good impact resistance upon impact.
Preferably, the swelling fluid further comprises lubricating oil in the raw material, and the weight ratio of the lubricating oil to the water is 1: (10-20).
By adopting the technical scheme, the lubricating oil can form an oil film on the inner side of the PVC cloth, so that on one hand, the water in the containing dilatancy fluid can be locked, and the water evaporation is reduced; on the other hand, the compact oil film can permeate into the crack of the inner wall of the PVC cloth, so that the sealing performance of the PVC cloth is ensured, and the water evaporation is further reduced.
Preferably, the diameter of the through hole is 2-4 mm.
Through adopting above-mentioned technical scheme, need pass through the acupuncture of needle loom in the non-woven production process, and the diameter of felting needle in the needle loom is generally within 1mm, and the diameter of through-hole is great for the fault-tolerant rate of acupuncture in-process is great, avoids the condition that the acupuncture impaled the PVC cloth to appear. On the one hand, the stability of the swelling plastic fluid can be ensured, and on the other hand, the problem of needle breakage caused by puncturing the swelling plastic fluid by a needle can be avoided.
Preferably, the raw material of the dilatancy fluid also comprises water-absorbing beads, and the ratio of the water-absorbing beads to water is 1: (15-20).
Through adopting above-mentioned technical scheme, the pearl that absorbs water has good water-holding capacity for the moisture in the plastic fluid that expands is difficult to run off, guarantees the stable performance of plastic fluid that expands.
Preferably, a heat insulation layer is arranged on the outer side of the PVC cloth layer.
Through adopting above-mentioned technical scheme, the insulating layer can reduce outside heat and get into PVC bed of cloth inboardly, further reduces the water loss in the plastic fluid that expands, guarantees the stable performance of the plastic fluid that expands.
In a second aspect, the application provides a method for preparing a multifunctional spunmelt nonwoven fabric, which adopts the following technical scheme:
a preparation method of the multifunctional spunmelt nonwoven fabric comprises the following steps:
step one, preparing a swelling fluid:
mixing starch and water according to the ratio of (2-3): 1 to obtain a swelling plastic fluid; injecting the swelling plastic fluid into PVC fabric with a cavity, and sealing the injection hole to obtain a PVC fabric layer filled with the swelling plastic fluid;
step two, preparing the non-woven fabric:
firstly, plastic particles are put into the spinning device to extrude filaments after being melted, and fibers are obtained after cooling;
opening, namely opening the fibers by an opener;
thirdly, spreading the opened fibers in a net shape to a preset thickness to obtain a lower fiber net layer; laying a PVC fabric layer with a swelling plastic fluid on the surface of the lower fiber mesh layer, and laying the opened fiber mesh layer on one side of the PVC fabric layer away from the lower fiber mesh layer again to obtain a semi-finished product;
and (4) placing the semi-finished product obtained in the third step under a needling machine for needling, winding the fibers on the two sides of the PVC fabric layer together through the through holes on the PVC, and winding the wound fibers to obtain the multifunctional spunmelt nonwoven fabric.
By adopting the technical scheme, the swelling plastic fluid can be compounded with the fiber mesh layer to form the non-woven fabric, and the problem that a needle machine punctures the PVC fabric layer is solved.
Preferably, the PVC fabric layer comprises a plurality of unconnected sublayers, adjacent sublayers are integrally formed, and the swelling plastic fluid is respectively injected into the sublayers.
By adopting the technical scheme, the adjacent sub-layers are not communicated, when one sub-layer is accidentally broken (for example, the sub-layer is punctured in the processing process or the using process), the swelling fluid in the other sub-layers can continue to act, and the fault tolerance rate of the multifunctional spun-melt non-woven fabric in the preparation process and the using process is improved.
In summary, the present application has the following beneficial effects:
1. because the application adopts the combination of the swelling plastic fluid and the non-woven fabric, and the swelling plastic fluid has 'hard' property under the impact, and the swelling plastic fluid has 'soft' property under the conventional use with the non-woven fabric, the double effects of flexibility and hardness are simultaneously obtained, the application range of the non-woven fabric is improved, and the impact resistance and the puncture resistance of the non-woven fabric are improved.
2. Preferably adopt rubber seal layer, lubricating oil and absorb water pearl in this application because the three all has the lock water function for the internal moisture of plastic fluid that expands is difficult to run off, has prolonged the fluidic life of plastic fluid that expands. And a heat insulation layer is preferably adopted, so that heat is not easy to conduct into the swelling plastic fluid, the water loss in the swelling plastic fluid is reduced, and the service life of the swelling plastic fluid is further prolonged.
3. In the application, the PVC fabric layer is preferably divided into a plurality of unconnected sublayers, and when one sublayer is accidentally broken (for example, the sublayer is punctured in the processing process or the using process), the swelling plastic fluid in other sublayers can continue to act, so that the fault tolerance rate of the multifunctional spun-melt non-woven fabric in the preparation process and the using process is improved.
4. The method enables the swelling plastic fluid to be compounded with the fiber mesh layer to form the non-woven fabric, and solves the problem that a needle machine punctures the PVC fabric layer.
Drawings
FIG. 1 is a schematic sectional view of embodiment 1;
fig. 2 is a structural schematic diagram of a PVC cloth layer in example 12 with reference numerals: 1. a dilatant fluid; 2. PVC cloth; 201. a sub-layer; 3. a fibrous web layer; 4. a chamber.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples.
Examples
Example 1: a multifunctional spun-bonded non-woven fabric is disclosed, and referring to fig. 1, the multifunctional spun-bonded non-woven fabric comprises a swelling plastic fluid 1, a PVC fabric 2 for containing the swelling plastic fluid 1, and a fiber mesh layer 3 which are sequentially arranged from inside to outside.
Wherein, PVC cloth 2 is bilayer structure and two-layer both sides that are located dilatancy fluid 1 respectively, consequently is formed with cavity 4 in the PVC cloth 2, and the edge of PVC cloth 2 seals through the mode of heat-seal. Offer the through-hole that is used for supplying the needle loom to penetrate on the PVC cloth 2, the diameter of through-hole is 2mm in this embodiment, and the through-hole is not communicated with the inside of PVC cloth 2.
The multifunctional spunmelt nonwoven is prepared by the following steps:
step one, preparing a swelling fluid:
mixing starch and water according to the ratio of 2: 1 to obtain a swelling fluid 1; injecting the swelling plastic fluid 1 into the PVC cloth 2 with the cavity 4, and sealing the injection hole by a sealing plug or a heat sealing mode to obtain the PVC cloth 2 filled with the swelling plastic fluid 1;
step two, preparing the non-woven fabric:
firstly, plastic particles are put into an extruder, the plastic particles are melted and extruded out of filaments through a spinning device, and fibers are obtained after cooling;
opening, namely opening the fibers by an opener;
thirdly, spreading the opened fibers in a net shape and paving the fibers to a preset thickness (2mm) to obtain a lower fiber net layer 3; paving a PVC cloth 2 with the swelling fluid 1 on the surface of the lower fiber net layer 3, and paving the opened fiber net layer 3 on one side of the PVC cloth 2 far away from the lower fiber net layer 3 again to obtain a semi-finished product;
and (3) dragging the semi-finished product obtained in the third step by a tractor to be placed under a needling machine for needling, wherein the diameter of the felting needle is less than 1mm, and the felting needle can wind the fiber mesh layers 3 on two sides of the PVC fabric 2 together through the through hole. And winding the obtained product to obtain the multifunctional spunmelt nonwoven.
Example 2: a multifunctional spunmelt nonwoven differing from example 1 in that: in the first step, starch and water are mixed according to the ratio of 2.5: 1 to obtain the dilatancy fluid.
Example 3: a multifunctional spunmelt nonwoven differing from example 1 in that: in the first step, mixing starch and water according to the ratio of 3: 1 to obtain the dilatancy fluid.
Example 4: a multifunctional spunmelt nonwoven differing from example 1 in that: the diameter of the through-hole in this embodiment is 3 mm.
Example 5: a multifunctional spunmelt nonwoven differing from example 1 in that: the diameter of the through-hole in this embodiment is 4 mm.
Example 6: a multifunctional spunmelt nonwoven differing from example 1 in that: the inboard cover of PVC cloth is equipped with the rubber sealing layer, and the rubber sealing layer passes through mould secondary injection moulding.
Example 7: a multifunctional spunmelt nonwoven differing from example 1 in that: the raw material of the dilatant fluid also comprises lubricating oil, which is Kluybo GLK112 from Kluybo Lubricant (Shanghai) Co., Ltd., the weight ratio of the lubricating oil to water is 1: 10, adding the lubricating oil and water into the starch in the step one, and uniformly mixing.
Example 8: a multifunctional spunmelt nonwoven, differing from example 7 in that: the weight ratio of the lubricating oil to the water is 1: 20.
example 9: a multifunctional spunmelt nonwoven differing from example 1 in that: the swelling plastic fluid also comprises water-absorbing beads in the raw materials, and the proportion of the water-absorbing beads to water is 1: 15, adding the water-absorbing beads and water into the starch in the step one and uniformly mixing.
Example 10: a multifunctional spunmelt nonwoven, which differs from example 9 in that: the ratio of water-absorbing beads to water is 1: 20.
example 11: a multifunctional spunmelt nonwoven differing from example 1 in that: the outside of PVC bed of cloth is provided with the insulating layer, and the insulating layer specifically is the silica gel layer, and the insulating layer passes through gluing agent and PVC bed of cloth bonding fixed.
Example 12: a multifunctional spunmelt nonwoven differing from example 1 in that: as shown in fig. 2, the PVC cloth layer includes a plurality of unconnected sublayers 201, adjacent sublayers 201 are integrally formed, and in the first step, the dilatancy fluid 1 is injected into different sublayers 201 respectively.
Comparative example
Comparative example 1: a spun-melt nonwoven fabric, commercially available.
Comparative example 2: a spunmelt nonwoven differing from example 1 in that: the nonwoven fabric in this example was not loaded with dilatant fluid and the rest of the procedure was the same as in example 1.
Performance test
Test-collision avoidance test
Test samples: the spunmelt nonwovens obtained in examples 1-12 were used as test samples 1-12, and the spunmelt nonwovens obtained in comparative examples 1-2 were used as control samples 1-2.
The test method comprises the following steps: the test samples 1-12 and the control samples 1-2 were vertically fixed, the same a3 paper was vertically held at 1cm behind the test samples 1-12 and the control samples 1-2, the tennis ball launcher was fixed at 1m in front of the test samples 1-12 and the control samples 1-2, and the paper behind the nonwoven fabric was tested for breakage after the tennis ball launcher was turned on.
And (3) test results: the test results of the test samples 1 to 12 and the control samples 1 to 2 are shown in Table 1.
TABLE 1 test results of test samples 1-12 and control samples 1-2
And (3) data analysis: as can be seen by combining examples 1-12 and comparative examples 1-2 with Table 1, none of the test samples 1-12 deformed to impact with A3 paper upon tennis ball impact, indicating that the nonwoven fabric compounded with the dilatant fluid did not yield a deformation amount exceeding 1 cm; while the control samples 1-2 all deformed to impact with the A3 paper and impacted the A3 paper to a ruptured state under tennis ball impact, thus indicating that the nonwoven fabric compounded with the dilatant fluid would generate a large impact force when impacted.
In conclusion, due to the combination of the dilatancy fluid and the non-woven fabric, the non-woven fabric obtains the dual effects of flexibility and hardness, the application range of the non-woven fabric is improved, and the impact resistance and puncture resistance of the non-woven fabric are improved.
The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.
Claims (9)
1. The multifunctional spunmelt nonwoven fabric is characterized by comprising an expansion-plasticity fluid (1), a PVC fabric (2) and a fiber mesh layer (3), wherein the expansion-plasticity fluid (1), the PVC fabric (2) and the fiber mesh layer are sequentially arranged from inside to outside, a through hole for a needle machine to penetrate is formed in the PVC fabric (2), and the through hole is not communicated with the inside of the PVC fabric (2).
2. The multifunctional spunmelt nonwoven of claim 1, wherein: the inner side of the PVC cloth (2) is sleeved with a rubber sealing layer.
3. The multifunctional spunmelt nonwoven according to claim 2, wherein the bulk plastic fluid (1) comprises the following raw materials in weight ratio (2-3): 1 and water.
4. The multifunctional spunmelt nonwoven according to claim 3, wherein the bulk of the dilatant fluid (1) further comprises a lubricant, and the weight ratio of the lubricant to water is 1: (10-20).
5. The multifunctional spunmelt nonwoven according to claim 1 wherein the through holes have a diameter of 2 to 4 mm.
6. The multifunctional spunmelt nonwoven according to claim 1, wherein the bulk of the dilatant fluid (1) further comprises water-absorbing beads, and the ratio of the water-absorbing beads to water is 1: (15-20).
7. The multifunctional spunmelt nonwoven according to claim 1, wherein the outside of the PVC cloth (2) is provided with a thermal insulation layer.
8. The method of making the multifunctional spunmelt nonwoven of any of claims 1-7 comprising the steps of:
step one, preparing a swelling fluid:
mixing starch and water according to the ratio of (2-3): 1 to obtain a swelling fluid (1); injecting the swelling fluid (1) into the PVC cloth (2) with the cavity (4), and sealing the injection hole to obtain the PVC cloth (2) filled with the swelling fluid (1);
step two, preparing the non-woven fabric:
firstly, plastic particles are put into the spinning device to extrude filaments after being melted, and fibers are obtained after cooling;
opening, namely opening the fibers by an opener;
thirdly, spreading the opened fibers in a net shape to a preset thickness to obtain a lower fiber net layer (3); paving a PVC cloth (2) with a swelling plastic fluid (1) on the surface of the lower fiber mesh layer (3), and paving the opened fiber mesh layer (3) on one side of the PVC cloth (2) far away from the lower fiber mesh layer (3) again to obtain a semi-finished product;
and (4) placing the semi-finished product obtained in the third step under a needling machine for needling, winding the fibers on the two sides of the PVC fabric (2) together through the through holes on the PVC, and winding the fibers after winding to obtain the multifunctional spunmelt non-woven fabric.
9. The method for preparing the multifunctional spunmelt nonwoven as claimed in claim 8, wherein the PVC fabric (2) comprises a plurality of unconnected sub-layers (201), adjacent sub-layers (201) are integrally formed, and the swelling plastic fluid (1) is respectively injected into the sub-layers (201).
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