A lightweight and multifunctional nylon fabric and its preparation process

Abstract

The present invention relates to a lightweight and multifunctional nylon fabric and a preparation process thereof. The lightweight and multifunctional nylon fabric is obtained by weaving with nylon yarns as warp and weft yarns. Among them, the nylon yarn includes a spool core and two second support members symmetrically arranged on the outer surface of the spool core. A plurality of first support members are evenly distributed on the outer surface of the spool core between the two second support members. The cross-sectional area of the second support member is larger than that of the first support member. Adjacent two nylon yarns are mutually clamped through the first support members to form a heat preservation cavity. The nylon yarn of the lightweight and multifunctional nylon fabric of the present invention has the structure of a spool core, a first support member, and a second support member. Compared with the nylon yarn of the blank group, it has the advantage of light weight, and the nylon yarn has good waterproof effect. Volcanic rock powder is added to the raw material of the nylon yarn, so that the fabric has certain antibacterial and heat preservation effects, and the prepared fabric has multiple functions.

Description

Technical Field

[0001] The present invention belongs to the technical field, and particularly relates to a lightweight and multifunctional nylon fabric and its preparation process. Background Art

[0002] Polyamide, commonly known as nylon (Nylon), has good dyeability among synthetic fibers. It is lightweight to wear, has good waterproof and windproof properties, high abrasion resistance, good strength and elasticity. Clothing made of polyamide is more comfortable to wear than polyester clothing. Nylon fabric is a lightweight fabric and is suitable for making winter down jackets and other clothing.

[0003] Down jackets are mostly composed of an inner and outer fabric and the down filled between the inner and outer fabrics. After multiple washes, the down filaments are prone to breakage. The down filaments are relatively fine and easy to pass through the fabric and show out. In the prior art, the anti-down leakage effect of the lightweight nylon fabric made into down jackets is relatively weak, and it is difficult to meet the requirement of still maintaining a good anti-down leakage effect after multiple washes of the down jacket. Therefore, we provide a lightweight and multifunctional nylon fabric and its preparation process to solve the above technical problems. Summary of the Invention

[0004] The purpose of the present invention is to provide a lightweight and multifunctional nylon fabric and its preparation process to solve the above problems.

[0005] The present invention realizes the above purpose through the following technical solutions:

[0006] A lightweight and multifunctional nylon fabric is obtained by weaving with nylon yarns as warp and weft yarns;

[0007] Among them, the nylon yarn includes a spool core (1) and two second support members (3) symmetrically arranged on the outer surface of the spool core (1). A plurality of first support members (2) are evenly distributed on the outer surface of the spool core (1) between the two second support members (3);

[0008] The cross-sectional area of the second support member (3) is larger than the cross-sectional area of the first support member (2);

[0009] Adjacent two nylon yarns are mutually clamped by the first support member (2) and form a heat preservation cavity.

[0010] As a further optimized scheme of the present invention, one end of the first support member (2) and the second support member (3) close to the spool core (1) is a narrow end, and the end far from the spool core (1) is a wide end. The middle parts of the narrow end and the wide end bulge outwards. Among them, the maximum diameter of the bulge is larger than the diameter of the wide end.

[0011] As a further optimization scheme of the present invention, when two adjacent nylon yarns are clamped to each other through the first support member (2), the wide end of the first support member (2) of one nylon yarn is clamped between the wide ends of two adjacent first support members (2) of the other nylon yarn;

[0012] The wide end of the first support member (2) of one nylon yarn, together with the narrow ends and protrusions of two adjacent first support members (2) of the other nylon yarn, encloses a heat preservation cavity.

[0013] As a further optimization scheme of the present invention, the cross-sectional area of the second support member (3) is 2.4 - 2.8 times that of the cross-sectional area of the first support member (2).

[0014] As a further optimization scheme of the present invention, the warp is 20D and the weft is 25D.

[0015] As a further optimization scheme of the present invention, the warp density of the lightweight multi-functional nylon fabric is 75 threads / cm, and the weft density is 75 threads / cm.

[0016] A preparation process of a lightweight multi-functional nylon fabric includes the following steps:

[0017] Step 1: Mix volcanic rock powder in nylon resin, heat and melt it, then extrude it through an extruder to obtain a spindle core (1). Two symmetric second support members (3) are integrally formed on the outer surface of the spindle core (1), and several first support members (2) are integrally formed between the two second support members (3) on the outer surface of the spindle core (1). After cooling, nylon yarns are obtained;

[0018] Step 2: Weave the nylon yarns as warp and weft to obtain a fabric. Among them, two adjacent nylon yarns are clamped to each other by the first support member (2) to form a heat preservation cavity, and a workpiece is placed in the heat preservation cavity for support;

[0019] Step 3: Under the support of the workpiece, the fabric is calendered to obtain a lightweight multi-functional nylon fabric. Then, the workpiece is taken out and the lightweight multi-functional nylon fabric is wound up.

[0020] As a further optimization scheme of the present invention, in Step 1, 85 - 125 g of volcanic rock powder is added to every 1 kg of nylon resin.

[0021] As a further optimization scheme of the present invention, in Step 3, the hot pressing temperature is 85 - 95 °C, and the hot pressing pressure is 10 - 12 MPa.

[0022] The beneficial effects of the present invention are as follows:

[0023] 1) The nylon yarn of the lightweight and multifunctional nylon fabric of the present invention has a structure of a spool core, a first support member, and a second support member. Compared with the nylon yarn of the blank group, it has the advantage of being lightweight, and the nylon yarn has good waterproof effect. Volcanic rock powder is added to the raw material of the nylon yarn, making the fabric have certain antibacterial and heat preservation effects, so that the prepared fabric has multiple functions;

[0024] 2) Two adjacent nylon yarns of the lightweight and multifunctional nylon fabric of the present invention are mutually clamped through the first support member and enclose a heat preservation cavity. The structural design of the heat preservation cavity makes the lightweight and multifunctional nylon fabric have a certain anti-feather leakage effect. When the down wants to pass through the lightweight and multifunctional nylon fabric and leak out, it is easy to drill into and be collected in the heat preservation cavity, so that the down is not easy to leak out;

[0025] 3) Two adjacent nylon yarns of the lightweight and multifunctional nylon fabric of the present invention are mutually clamped through the first support member and enclose a heat preservation cavity. First of all, the heat preservation cavity has a certain blocking and isolation effect. Secondly, when the air flow inside and outside the lightweight and multifunctional nylon fabric flows, the heat preservation cavity has a buffering effect, which can reduce the air flow speed, thereby reducing heat dissipation and improving the heat preservation effect of the fabric;

[0026] 4) There is a mutual cooperation between the first support member and the second support member of the nylon yarn in the lightweight and multifunctional nylon fabric of the present invention. After hot pressing, the second support member can evenly cover the upper and lower sides of the first support member, so as to further improve the anti-feather leakage effect and heat preservation effect of the lightweight and multifunctional nylon fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic cross-sectional structure diagram of the nylon yarn of the present invention.

[0028] Figure 2 is a schematic structural diagram of the nylon yarns of the present invention clamped in sequence

[0029] Figure 3 is a schematic structural diagram of the nylon yarns of Comparative Example 1 of the present invention clamped in sequence.

[0030] Figure 4 is a schematic structural diagram of the nylon yarns of Comparative Example 2 of the present invention clamped with each other.

[0031] Figure 5 is a schematic structural diagram of the nylon yarns of Comparative Example 3 of the present invention clamped with each other.

[0032] Figure 6 is a schematic structural diagram of the nylon yarns of Comparative Example 4 of the present invention clamped with each other.

[0033] Figure 7 is a comparative cross-sectional structure diagram of the nylon yarns of Example 2 and the blank group of the present invention.

[0034] In the figure: 1. Spindle core; 2. First support member; 3. Second support member. Specific embodiments

[0035] The present application will be further described in detail below with reference to the accompanying drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and cannot be construed as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0036] I. Materials

[0037] Both nylon resin and volcanic rock powder are commercially available products.

[0038] II. Methods

[0039] In order to explore the influence of the first support member 2 and the second support member 3 on the performance of the lightweight multi-functional nylon fabric, Examples 1-3, a blank group, and Comparative Examples 1-3 are set as follows:

[0040] Example 1

[0041] As Figure 1-2 shown, a preparation process of a lightweight multi-functional nylon fabric includes the following steps:

[0042] Step 1: Mix volcanic rock powder in nylon resin, heat and melt it, and then extrude the spindle core (1) through an extruder. Two symmetric second support members (3) are integrally formed on the outer surface of the spindle core (1), and several first support members (2) are integrally formed between the two second support members (3) on the outer surface of the spindle core (1). After cooling, nylon yarn is obtained;

[0043] One end of the first support member 2 and the second support member 3 close to the spindle core 1 is a narrow end, and the end far from the spindle core 1 is a wide end. The middle parts of the narrow end and the wide end bulge outwards, and among them, the maximum diameter of the bulge is greater than the diameter of the wide end;

[0044] Step 2: Weave with the nylon yarn as warp and weft to obtain a fabric. Among them, two adjacent nylon yarns are clamped with each other by the first support member (2) to form a heat preservation cavity, and a workpiece is placed in the heat preservation cavity for support;

[0045] Among them, the wide end of the first support member 2 of one nylon yarn is clamped between the wide ends of the adjacent two first support members 2 of another nylon yarn;

[0046] The wide end of the first support member 2 of one nylon yarn and the narrow ends and bulges of the adjacent two first support members 2 of another nylon yarn enclose to form a heat preservation cavity;

[0047] Step 3: Under the support of the workpiece, calender the fabric to obtain the lightweight multifunctional nylon fabric, then remove the workpiece and wind up the lightweight multifunctional nylon fabric.

[0048] The component formulations and preparation process parameters of Examples 1-3 are shown in Table 1:

[0049] Table 1 Component Formulation and Preparation Process Parameter Table

[0050]

[0051] Comparative Example 1

[0052] As Figure 3 shown, a preparation process of a lightweight multifunctional nylon fabric includes the following steps:

[0053] Step 1: Mix volcanic rock powder in nylon resin, heat and melt it, then extrude it through an extruder, and obtain nylon yarn after cooling;

[0054] Among them, the nylon yarn includes a spool core 1 and 8 first support members 2 evenly distributed on the outer surface of the spool core 1;

[0055] One end of the first support member 2 close to the spool core 1 is a narrow end, and the end far from the spool core 1 is a wide end. The middle parts of the narrow end and the wide end bulge outwards, and among them, the maximum diameter of the bulge is greater than the diameter of the wide end;

[0056] Step 2: Weave with the nylon yarn as warp and weft to obtain a fabric, and adjacent two nylon yarns are mutually clamped through the first support member 2;

[0057] Among them, the wide end of the first support member 2 of one nylon yarn is clamped between the wide ends of two adjacent first support members 2 of another nylon yarn;

[0058] The wide end of the first support member 2 of one nylon yarn and the narrow ends and bulges of two adjacent first support members 2 of another nylon yarn enclose a heat preservation cavity;

[0059] Place a workpiece in the heat preservation cavity of the fabric for support;

[0060] Step 3: Under the support of the workpiece, calender the fabric to obtain the lightweight multifunctional nylon fabric, then remove the workpiece and wind up the lightweight multifunctional nylon fabric.

[0061] The rest are all the same as Example 2.

[0062] Comparative Example 2

[0063] As Figure 4 shown, a preparation process of a lightweight multifunctional nylon fabric includes the following steps:

[0064] Step 1: Mix volcanic rock powder into nylon resin, heat and melt it, extrude it through an extruder, and obtain nylon yarn after cooling;

[0065] The nylon yarn includes a spool core 1 and four second support members 3 evenly distributed on the outer surface of the spool core 1;

[0066] One end of the second support member 3 close to the spool core 1 is a narrow end, and the end far from the spool core 1 is a wide end. The middle parts of the narrow end and the wide end bulge outwards, and the maximum diameter of the bulge is greater than the diameter of the wide end;

[0067] Step 2: Weave the nylon yarn as warp and weft to obtain a fabric;

[0068] The second support members 3 of two adjacent nylon yarns are in contact with each other;

[0069] Step 3: Obtain a lightweight multifunctional nylon fabric after calendering the fabric, and then wind up the lightweight multifunctional nylon fabric.

[0070] The rest is the same as that of Example 2.

[0071] Comparative Example 3

[0072] As Figure 5 shown, a preparation process of a lightweight multifunctional nylon fabric includes the following steps:

[0073] Step 1: Mix volcanic rock powder into nylon resin, heat and melt it, extrude it through an extruder, and obtain nylon yarn after cooling;

[0074] The nylon yarn includes a spool core 1 and eight first support members 2 evenly distributed on the outer surface of the spool core 1;

[0075] The diameters of different positions of the first support member 2 are the same, and the depression between two adjacent first support members 2 is arc-shaped;

[0076] Step 2: Weave the nylon yarn as warp and weft to obtain a fabric;

[0077] Two adjacent nylon yarns are clamped to each other through the first support member 2;

[0078] Step 3: Obtain a lightweight multifunctional nylon fabric after calendering the fabric, and then wind up the lightweight multifunctional nylon fabric.

[0079] The rest is the same as that of Example 2.

[0080] Comparative Example 4

[0081] As Figure 6 shown, a preparation process of a lightweight multifunctional nylon fabric includes the following steps:

[0082] Step 1: Mix volcanic rock powder in nylon resin, heat and melt it, extrude it through an extruder, and obtain nylon yarn after cooling;

[0083] Among them, the nylon yarn includes a spool core 1 and 8 first support members 2 evenly distributed on the outer surface of the spool core 1;

[0084] One end of the first support member 2 far from the spool core 1 is a wide end, and one end close to the spool core 1 is a narrow end;

[0085] Step 2: Weave with the nylon yarn as warp and weft to obtain a fabric;

[0086] Two adjacent nylon yarns are clamped to each other through the first support member 2;

[0087] Step 3: Obtain a lightweight multi-functional nylon fabric after calendering the fabric, and then wind up the lightweight multi-functional nylon fabric.

[0088] The rest are the same as those in Example 2.

[0089] Blank group

[0090] The difference from Example 2 is that, as Figure 7 shown, the cross-section of the nylon yarn is circular;

[0091] The rest are the same as those in Example 2.

[0092] Experimental verification:

[0093] 1. Conduct a down-proof performance test on the lightweight multi-functional nylon fabrics produced according to the above Examples 1-3, Comparative Examples 1-4, and the blank group;

[0094] The down-proof performance test method is carried out according to the determination method of GB-T 12705.2-2009 "Test Method for Down-proof Property of Textile Fabrics". The test is carried out in four rounds. Specifically,

[0095] The first round is the lightweight multi-functional nylon fabric that has not been washed and stretched, numbered as Group 1;

[0096] The second round is the lightweight multi-functional nylon fabric that has been washed 15 times and air-dried naturally. Among them, the washing is carried out by a drum washing machine at a rotation speed of 1200 r / min and a washing time of 25 min, numbered as Group 2;

[0097] The third round is the lightweight multi-functional nylon fabric that has been washed 30 times and air-dried naturally. Among them, the washing is carried out by a drum washing machine at a rotation speed of 1400 r / min and a washing time of 20 min, numbered as Group 3;

[0098] The fourth round is a lightweight and multifunctional nylon fabric that has been stretched 200 times. Among them, the tensile force is 40 N, the tensile frequency is 600 times / h, and the number is group 4.

[0099] The evaluation criteria for the anti-feather leakage performance are shown in Table 2:

[0100] Table 2 Evaluation criteria for anti-feather leakage performance

[0101] Evaluation of down-proof property Number of escaped down / root Having good down-proof property ＜5 Having down-proof property 6-15 Poor down-proof property ＞15

[0102] The specific test data are shown in Table 3:

[0103] Table 3 Experimental test data of anti-feather leakage

[0104]

[0105]

[0106] Conclusion: From the data in Table 3, it can be known that when the lightweight and multifunctional nylon fabrics of Examples 1-3 are not washed and stretched, their anti-feather leakage effects are both "having good anti-feather leakage performance". After the lightweight and multifunctional nylon fabrics of Examples 1-3 are washed 15 times, washed 30 times, and stretched 200 times, their anti-feather leakage effects can still be maintained at "having anti-feather leakage performance". Among them, the effect of Example 2 is the best;

[0107] Comparative example 1 is equivalent to replacing one second support member 3 with two first support members 2, and it still retains the structure of the heat preservation cavity; Comparative example 2 is equivalent to replacing two first support members 2 with one second support member 3 and canceling the structure of the heat preservation cavity at the same time; the structures of the first support members 2 in Comparative examples 3 and 4 are different from those of the first support member 2 in Example 2, and when being clamped, the heat preservation cavity cannot be formed;

[0108] From the data in Table 3, it can be known that for Comparative examples 1-4, when not washed and stretched, their anti-feather leakage effects are both "having anti-feather leakage performance";

[0109] After Comparative examples 1-2 are washed 15 times, washed 30 times, and stretched 200 times, their anti-feather leakage effects are both "poor anti-feather leakage performance";

[0110] Comparative examples 2-4 can still maintain "having anti-feather leakage performance" after being washed 15 times, but after Comparative examples 2-4 are washed 30 times and stretched 200 times, their anti-feather leakage effects are both "poor anti-feather leakage performance", indicating that the structure formed by the mutual clamping of the first support members 2 and the structure of the heat preservation cavity have a certain anti-feather leakage effect. When the down wants to pass through the lightweight and multifunctional nylon fabric and leak out, it is easy to drill into and be collected in the heat preservation cavity, so that the down is not easy to leak out.

[0111] II. Perform heat preservation performance tests on the lightweight multifunctional nylon fabrics produced according to the above-mentioned Examples 1-3, Comparative Examples 1-4, and the blank group;

[0112] The heat preservation performance test was carried out according to the measurement method of GB / T35762-2017 "Test Method for Thermal Transfer Properties of Textiles - Plate Method", and the test data are specifically shown in Table 4:

[0113] Table 4 Heat Preservation Performance Detection Data Table

[0114]

[0115] Conclusion: It can be seen from the data in the above table that among Examples 1-3, the lightweight multifunctional nylon fabric prepared according to Example 2 has the best heat preservation performance;

[0116] Comparative Example 1 is equivalent to replacing one second support member 3 with two first support members 2, and it still retains the structure of the heat preservation cavity;

[0117] Comparative Example 2 is equivalent to replacing two first support members 2 with one second support member 3 and canceling the structure of the heat preservation cavity at the same time;

[0118] The structures of the first support members 2 in Comparative Examples 3 and 4 are different from those of the first support members 2 in Example 2, and when they are clamped, a heat preservation cavity cannot be formed;

[0119] It can be seen from the data in the above table that the heat preservation effect of Example 2 is significantly higher than that of Comparative Examples 2-4 and the blank group, and the difference in heat preservation effect from Comparative Example 1 is relatively small. From this, it can be known that first, the heat preservation cavity has a certain blocking and isolation effect, and second, the structural design of the heat preservation cavity enables a buffering effect when the air flows inside and outside the lightweight multifunctional nylon fabric prepared, which can reduce the air flow speed and thus reduce heat loss. The small difference in heat preservation effect between Comparative Example 1 and Example 2 can illustrate that there is a cooperative effect between the first support member 2 and the second support member 3. After hot pressing, the second support member 3 can evenly cover the upper and lower sides of the first support member 2 to improve the heat preservation effect of the lightweight multifunctional nylon fabric.

[0120] The above-mentioned embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A lightweight multifunctional nylon fabric, characterized by: The lightweight multifunctional nylon fabric is obtained by weaving nylon yarns as warp and weft yarns; The nylon yarn comprises a bobbin core (1), two second support members (3) symmetrically arranged on the outer surface of the bobbin core (1), and a plurality of first support members (2) are evenly distributed on the outer surface of the bobbin core (1) between the two second support members (3); The cross-sectional area of the second support member (3) is greater than the cross-sectional area of the first support member (2); Two adjacent nylon yarns are mutually clamped through a first support member (2) to form a heat-insulating cavity; The first support member (2) and the second support member (3) have narrow ends at their ends close to the bobbin core (1) and wide ends at their ends away from the bobbin core (1), and the middle portions of the narrow ends and the wide ends bulge outwards, wherein the maximum diameter of the bulge is greater than the diameter of the wide end; When two adjacent nylon yarns are clamped to each other through the first support member (2), the wide end of the first support member (2) of one nylon yarn is clamped to between the wide ends of two adjacent first support members (2) of the other nylon yarn; The wide end of a first supporting member (2) of a nylon yarn and the narrow ends and protrusions of two adjacent first supporting members (2) of another nylon yarn enclose and form a heat-insulating cavity.

2. The lightweight multifunctional nylon fabric according to claim 1, characterized in that: The cross-sectional area of the second support member (3) is 2.4-2.8 times the cross-sectional area of the first support member (2).

3. The lightweight multifunctional nylon fabric according to claim 1, characterized in that: The warp yarn is 20D and the weft yarn is 25D.

4. The lightweight multifunctional nylon fabric according to claim 1, characterized in that: The light multifunctional nylon fabric has a warp density of 75 threads / cm and a weft density of 75 threads / cm.

5. A process for preparing the lightweight multifunctional nylon fabric according to any one of claims 1 to 4, characterized in that: The following steps are involved: Step 1: volcanic rock powder is mixed into nylon resin, heated and melted, and then extruded through an extruder to form a bobbin core (1); two second supporting members (3) symmetrical to each other are integrally formed on the outer surface of the bobbin core (1); a plurality of first supporting members (2) are integrally formed between the two second supporting members (3) on the outer surface of the bobbin core (1); and nylon yarn is obtained after cooling; Step 2: using nylon yarns as warp and weft to weave a fabric, wherein two adjacent nylon yarns are mutually clamped by a first support member (2) to form a warming cavity, and a workpiece is placed in the warming cavity for support; Step 3: Under the support of the workpiece, the fabric is calendered to obtain a lightweight multifunctional nylon fabric, the workpiece is pulled out, and the lightweight multifunctional nylon fabric is rolled up.

6. The process for preparing a lightweight multifunctional nylon fabric according to claim 5, characterized in that: In step 1, add 85-125g of volcanic rock powder to every 1kg of nylon resin.

7. The process for preparing a lightweight multifunctional nylon fabric according to claim 5, characterized in that: In step three, the hot pressing temperature is 85-95° C., and the hot pressing pressure is 10-12 MPa.

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