Phase change polyester intelligent temperature-regulating multifunctional knitted fabric and its manufacturing method

Abstract

This invention discloses a phase change polyester intelligent temperature-regulating multifunctional knitted fabric and its manufacturing method, belonging to the field of weaving and dyeing technology. It is made of a blend of phase change polyester fiber, Coolmax freshFX fiber, and Antares fiber. The phase change polyester intelligent temperature-regulating multifunctional knitted fabric is a double-layer fabric. Coolmax freshFX fiber and phase change polyester fiber are used for the skin-contact layer of the fabric, while Antares fiber is used for the outer layer. The phase change polyester fiber includes a core layer and a sheath layer wrapped around the surface of the core layer. The sheath layer includes polyester fiber and high thermal conductivity powder, while the core layer includes a phase change temperature-regulating material and low melting point polyester. The manufacturing method includes the following steps performed sequentially: weaving, fabric preparation, pre-dyeing treatment, disperse dye dyeing, reduction washing, reactive dye dyeing, drying, and setting. This fabric can retain the temperature-regulating function of the phase change fiber to the greatest extent after washing and also has antibacterial and moisture-wicking quick-drying properties.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of weaving and dyeing and finishing technology, in particular to a phase change polyester intelligent temperature regulating multifunctional knitted fabric and a manufacturing method thereof. BACKGROUND

[0002] To meet the needs of people's outdoor exercise in spring and autumn, a fabric that takes into account warmth, moisture absorption and sweat resistance, and antibacterial performance is urgently needed. In order to make the fabric have both warmth and lightness, introducing phase change materials to give the fabric self-regulating temperature function has become an important way in recent years. Phase change materials store energy and regulate temperature by absorbing or releasing a large amount of energy during phase change, and the temperature of the material itself remains basically unchanged. For example, the Chinese invention patent with the publication number CN115559020A discloses a phase change temperature regulating fiber and its preparation method and application, which includes a core layer and a skin layer wrapped on the surface of the core layer; the core layer includes a composite phase change temperature regulating material and a low melting point polyester; the skin layer includes a fiber-forming polymer and a heat-conducting material, and has a durable temperature regulating performance. Because phase change materials rely on state change to function, they usually need to be encapsulated when made into fibers to prevent leakage. The existing phase change temperature regulating fibers generally have poor durability of temperature regulating performance, and there is a problem of loss of phase change energy storage materials after washing, which causes the temperature regulating performance to disappear or decrease. SUMMARY

[0003] In order to overcome the defects of the prior art, the technical problem to be solved by the present application is to provide a phase change polyester intelligent temperature regulating multifunctional knitted fabric and a manufacturing method thereof, which can maximize the retention of the temperature regulating function of the phase change fiber after washing, and have antibacterial and moisture absorption and quick drying properties.

[0004] To solve the above technical problems, the technical scheme adopted by the present application is:

[0005] The phase change polyester intelligent temperature regulating multifunctional knitted fabric is composed of phase change polyester fiber, Coollmax freshFX fiber and Antai Be fiber, and the phase change polyester intelligent temperature regulating multifunctional knitted fabric is a double-layer fabric. The Coolmax freshFX fiber and the phase change polyester fiber are used for knitting the skin layer of the fabric, and the Antai Be fiber is used for knitting the outer layer of the fabric. The phase change polyester fiber includes a core layer and a skin layer wrapped on the surface of the core layer. The skin layer includes polyester fiber and high-thermal-conductivity powder, and the core layer includes phase change temperature regulating material and low melting point polyester.

[0006] The manufacturing method of the phase change polyester intelligent temperature regulating multifunctional knitted fabric includes the following steps in sequence: weaving, fabric conditioning, pre-setting, pre-treatment for dyeing, disperse dyeing, reduction cleaning, active dyeing, drying and setting.

[0007] The beneficial effects of the present application are that: by selecting specific components combined with subsequent dyeing and finishing processes, the temperature regulating function of the phase change temperature regulating material is maximized, the loss of phase change energy storage material after washing is avoided, and through product testing, the antibacterial rate of the fabric on E. coli, Candida albicans and Staphylococcus aureus all meet the requirements, and the moisture absorption and quick drying indicators are all higher than the test standards. BRIEF DESCRIPTION OF DRAWINGS

[0008] Fig. 1 Fig. a shows the test results in the heat storage performance test in the specific embodiment of the present application;

[0009] Fig. 2 Fig. b shows the test results in the heat storage performance test in the specific embodiment of the present application. DETAILED DESCRIPTION

[0010] To explain the technical content, purposes and effects of the present application in detail, the following will be described in conjunction with the embodiments and the accompanying drawings.

[0011] The most critical idea of the present application is that: by adding low-melting polyester in the core layer and combining with subsequent dyeing and finishing processes, the phase change fiber structure is more stable, and the temperature regulating durability of the fabric is improved.

[0012] Please refer to Figs. 1 to 2 Fig. 1 shows the temperature curve of the phase change polyester intelligent temperature regulating multifunctional knitted fabric of the present application, wherein the Figs. 1-2 The shorter black dashed line is the temperature curve of the phase change polyester, the longer black dashed line is the temperature curve of the conventional polyester, the black solid line is the oven temperature curve, the shorter gray dashed line is the temperature curve of the comparative example two fabric, and the longer gray dashed line is the temperature curve of the comparative example three fabric. The phase change polyester intelligent temperature regulating multifunctional knitted fabric of the present application is composed of phase change polyester fiber, Coolmax freshFX fiber and Antai Be fiber, and the phase change polyester intelligent temperature regulating multifunctional knitted fabric is a double-layer fabric. The Coolmax freshFX fiber and the phase change polyester fiber are used for knitting the skin layer of the fabric, and the Antai Be fiber is used for knitting the outer layer of the fabric. The phase change polyester fiber includes a core layer and a skin layer wrapped on the surface of the core layer, the skin layer includes polyester fiber and high-thermal-conductivity powder, and the core layer includes phase change temperature regulating material and low-melting polyester.

[0013] The manufacturing method of the phase change polyester intelligent temperature regulating multifunctional knitted fabric includes the following steps in sequence: weaving, cloth finishing, pre-setting, dyeing pretreatment, disperse dyeing, reduction cleaning, reactive dyeing, drying and setting.

[0014] From the above description, the beneficial effects of the present application are that: by providing a phase change polyester intelligent temperature regulating multifunctional knitted fabric and a preparation method thereof, first, the core layer contains phase change temperature regulating material and low melting point polyester, the skin layer protects the phase change temperature regulating material in the core layer, avoids the loss of phase change temperature regulating material, and the core layer adds low melting point polyester, combined with the use of low temperature predetermined process and disperse dyeing process, the structure of the phase change temperature regulating material is more stable, the temperature regulating durability of the fabric is improved, the loss of phase change energy storage material after washing is avoided, and high thermal conductivity powder is added in the skin layer, which further improves the heat storage and release efficiency of the fabric.

[0015] Further, the Coolmax fresh FX fiber is purchased from the Lycra Company, and the Antai Be fiber is an antibacterial Antai Be fiber produced by Sartex.

[0016] From the above description, the Coolmax fresh FH fiber is a cage structure containing silver, which achieves antibacterial effect by slowly releasing silver ions, and the Antai Be fiber produced by Sartex evenly disperses active antibacterial substances to the surface and inside of the fiber through injection spinning technology, so that it has antibacterial property. The composition contains Coolmax fresh FX fiber and Antai Be fiber, so that the prepared fabric has excellent antibacterial property.

[0017] Further, the mass ratio of the skin layer to the core layer is 60-70:30-40. Preferably, the mass ratio of the skin layer to the core layer is 60:40.

[0018] From the above description, the specific mass ratio of the skin layer to the core layer is limited to protect the phase change temperature regulating material from being lost, and the core layer content should not be too small, which can easily affect the temperature regulating effect.

[0019] Further, the melting point of the low melting point polyester is 120-130 DEG C.

[0020] More further, the melting point of the low melting point polyester is 123-128 DEG C.

[0021] From the above description, by limiting the melting point range value of the low melting point polyester, the connection performance of the skin layer and the core layer after the predetermined treatment of the low melting point polyester in the range is good, and does not affect the subsequent dyeing effect, which is beneficial to protect the phase change temperature regulating material from being lost and dye the required color during the subsequent dyeing process. If a conventional melting point polyester is selected to make a phase change polyester fiber, the phase change temperature regulating material is easy to be lost during the subsequent dyeing process, thereby affecting the temperature regulating effect. Further, the high thermal conductivity powder is nano aluminum oxide.

[0022] From the above description, by adding high thermal conductivity powder, the heat storage and release efficiency of the fabric is further improved.

[0023] Further, the predetermined temperature is 125-135 DEG C.

[0024] Further, the predetermined temperature is 128-130℃.

[0025] From the above description, it can be seen that the conventional predetermined temperature is 220-320℃, and the low-temperature predetermined method is used in the application to connect the low-melting-point polyester of the core layer with the skin layer, so that the structure is more stable, the loss of the phase change temperature adjusting material in the subsequent process is greatly reduced, and the durability of the temperature adjusting fabric is increased.

[0026] Further, the dispersion dyeing specifically comprises the following steps: placing the fabric in water at 20-30℃, adding a high-temperature dispersion leveling agent, stirring, then adding dispersion dye and performing the first temperature rising and heat preservation, adding an oil removing agent and a dyeing carrier, then performing the second temperature rising and heat preservation, and then performing the second temperature rising and heat preservation for 20-40min, and then cooling to 80℃ for washing, wherein the first temperature rising temperature is 70-80℃, the second temperature rising temperature is 100-102℃, and the third temperature rising temperature is 110-112℃.

[0027] From the above description, it can be seen that by controlling the temperature in the dispersion dyeing process, the temperature is lower than the melting point of the low-melting-point polyester, and the dyeing carrier is added to the dispersion dye, so that the heat preservation temperature of the dispersion dye is further reduced, the damage of the skin layer and the core layer fibers of the fabric in the dyeing process is reduced, and the temperature adjusting effect is further reduced.

[0028] Further, the dyeing carrier is an environmentally-friendly repairing agent DT-70bs, which is purchased from Xiamen Honghe Fine Chemical Co., Ltd.

[0029] From the above description, it can be seen that the environmentally-friendly repairing agent has good dyeing resistance in the initial dyeing process, and when the dyeing temperature reaches a certain critical value, the polyester fibers rapidly swell and expand, the glass transition temperature of the polyester fibers is reduced by 20-25℃, the voids in the fibers are significantly increased, the dye is rapidly and concentratedly dyed in the fibers, and the dye is continuously desorbed from the fibers and significantly transferred, and the repairing agent is an environmentally-friendly repairing agent and meets the environmental protection requirements. By adding the dyeing carrier to the dispersion dye, the heat preservation temperature of the dispersion dye is further reduced, and the loss of the phase change temperature adjusting material is reduced.

[0030] Further, the manufacturing method of the phase change polyester intelligent temperature adjusting multifunctional knitted fabric specifically comprises the following steps:

[0031] S1, weaving according to the ratio in claim 1;

[0032] S2, arranging the fabric treated in S1;

[0033] S3, pre-setting the fabric treated in S2 using a setting machine, the temperature is 125-135℃, and the machine speed is 25-27m / min;

[0034] S4, dyeing pretreatment is performed on the fabric treated in S3, the dyeing pretreatment includes oxygen bleaching, peracid and oxygen removal in sequence;

[0035] The oxygen bleaching is specifically as follows: the fabric treated in S3 is put into water at a temperature of 40-50℃, and after running for 7-10 min, an auxiliary agent is added, the temperature is increased to 65-68℃ at a rate of 3℃ / min, hydrogen peroxide is added for 5 min, the temperature is increased to 98℃ at a rate of 3℃ / min and kept for 30 min, and the temperature is decreased to 60℃ at a rate of 1.5℃ / min, and then sampling and drainage are performed;

[0036] The peracid is specifically as follows: the fabric after oxygen bleaching is put into water at a temperature of 40-50℃, and after running for 5 min, an acid is added, the temperature is increased to 60℃ at a rate of 3℃ / min and kept for 10 min, and then drainage is performed;

[0037] The oxygen removal is specifically as follows: the fabric after peracid is put into water at a temperature of 25-30℃, oxygen removal enzyme is added, the temperature is increased to 55℃ at a rate of 2.5℃ / min and kept for 50 min, and then sampling and drainage are performed;

[0038] S5, disperse dyeing is performed on the fabric treated in S4;

[0039] S6, the fabric treated in S5 is put into water at a temperature of 35-45℃, soda ash and sodium hydrosulfite are added after temperature increase, and then reduction cleaning is performed;

[0040] S7, the fabric treated in S6 is put into water at a temperature of 30-50℃, dyes are added and stirred for 5-15 min, sodium sulphate is added twice, and then stirred for 5-15 min, soda ash is continuously added and stirred for 15-25 min, the temperature is increased to 55-65℃, soda ash is added again, and then kept for 40-50 min, and then sampling, washing and peracid are performed; the ratio of the two times of sodium sulphate addition is 2:3, and the ratio of the two times of soda ash addition is 1:2;

[0041] The peracid is specifically as follows: the fabric is put into water at a temperature of 40-50℃, and after running for 5 min, an acid is added, the temperature is increased to 60℃ at a rate of 3℃ / min and kept for 10 min, and then drainage is performed;

[0042] S8, drying is performed on the fabric treated in S7, the temperature is 130-140℃, and the machine speed is 20-30 m / min;

[0043] S9, setting: setting is performed on the fabric treated in S8, the temperature is 140-150℃, and the machine speed is 25-35 m / min.

[0044] It can be known from the above description that the fabric is pre-set by the setting machine to reduce the creases, and the temperature of pre-setting and the addition of dye carriers in the disperse dyes are controlled to make the connection structure of the skin layer and the core layer more stable and improve the temperature adjusting durability of the fabric.

[0045] Embodiment 1 of the present application is:

[0046] The phase change polyester intelligent temperature regulating multifunctional knitted fabric is formed by blending phase change polyester fiber, Coolmax fresh FX fiber and Antai Be fiber, the phase change polyester intelligent temperature regulating multifunctional knitted fabric is a double-layer knitted fabric, the Coolmax fresh FX fiber and the phase change polyester fiber are used for knitting the skin layer of the knitted fabric, and the Antai Be fiber is used for knitting the outer layer of the knitted fabric; the phase change polyester fiber is composed of a core layer and a skin layer wrapped on the surface of the core layer, the mass ratio of the skin layer to the core layer is 60:40, the skin layer is composed of polyester fiber and nano aluminum oxide, and the core layer is composed of a phase change temperature regulating material and low-melting-point polyester with a melting point of 120 DEG C.

[0047] Embodiment 2 of the present application is:

[0048] The difference between Embodiment 2 and Embodiment 1 is only that the mass ratio of the skin layer to the core layer is 70:30, and the melting point of the low-melting-point polyester is 130 DEG C.

[0049] Embodiment 3 of the present application is:

[0050] The difference between Embodiment 3 and Embodiment 1 is only that the mass ratio of the skin layer to the core layer is 65:35, and the melting point of the low-melting-point polyester is 125 DEG C.

[0051] Embodiment 4 of the present application is:

[0052] S1, according to the raw materials and the ratio in Embodiment 1, ZS11 double knitting machine is used for weaving, and the weaving process is as follows:

[0053] The manufacturing equipment is ZS11 double knitting machine, the gauge is 24G, the number of ways is 72F, the needle disc parameters are shown in Table 1, and the needle cylinder parameters are shown in Table 2,

[0054] Among them, the loop formation is v, the tuck stitch is [ and the float is --.

[0055] The needle disc is 2121, and the needle cylinder is 1212.

[0056] The organization is double-layer organization, the first and fourth ways are inserted into the face yarn, the Antai Be fiber is used; the third and sixth ways are inserted into the connecting yarn, the Coolmax fresh FX is used; the second and fifth ways are inserted into the ground yarn, and the phase change polyester fiber and the Coolmax fresh FX double yarn are used.

[0057] S2, the fabric treated in S1 is arranged;

[0058] S3, the fabric treated in S2 is pre-set by using a setting machine, the temperature is 125 DEG C, and the speed is 25 m / min.

[0059] S4, dyeing pretreatment is performed on the fabric treated in S3, the dyeing pretreatment includes oxygen bleaching, over-acid and oxygen removal in sequence;

[0060] The oxygen bleaching is specifically as follows: the fabric treated in S3 is put into water at a temperature of 40℃, 5g / L of soda ash and 2g / L of oil removal agent are added after 7 minutes of operation, the temperature is increased to 65℃ at a rate of 3℃ / min, 5 minutes of hydrogen peroxide is added, the temperature is increased to 98℃ at a rate of 3℃ / min and kept for 30 minutes, the temperature is decreased to 60℃ at a rate of 1.5℃ / min, and sampling and drainage are performed;

[0061] The over-acid is specifically as follows: the fabric after oxygen bleaching is put into water at 40℃, 5 minutes of operation is performed, and then acetic acid is added, the temperature is increased to 60℃ at a rate of 3℃ / min and kept for 10 minutes, and then drainage is performed;

[0062] The oxygen removal is specifically as follows: the fabric after over-acid is put into water at 25℃, oxygen removal enzyme is added, the temperature is increased to 55℃ at a rate of 2.5℃ / min and kept for 50 minutes, and then sampling and drainage are performed;

[0063] S5, the grey cloth treated in S4 is put into water at 20℃, 1g / L of high-temperature dispersion leveling agent Sinlever K-541 is added, stirring is performed, dispersion material is added, the first-stage temperature increasing is performed after the first-stage temperature increasing, the second-stage temperature increasing is performed after 1g / L of oil removal agent Kieralon F-MFB liq and 1% of environment-friendly repair agent DT-70bs are added, the third-stage temperature increasing is performed after the second-stage temperature increasing, and the temperature is kept for 20 minutes after the third-stage temperature increasing, and then the temperature is decreased to 80℃ for washing, wherein the first-stage temperature increasing is at 70℃, the second-stage temperature increasing is at 100℃, and the third-stage temperature increasing is at 110℃; wherein the dispersion material is composed of UN-SE dispersed orange 0.79%, UN-SE dispersed red 0.265% and UN-SE dispersed dark blue 200% 1.83%;

[0064] S6, the fabric treated in S5 is put into water at a temperature of 35℃, soda ash and sodium hydrosulfite are added, and then the temperature is increased for reduction cleaning;

[0065] S7, the fabric treated in S6 is put into water at 30℃, dye is added and stirred for 5 minutes, 50g / L of sodium sulfate is added twice and stirred for 5 minutes, 20g / L of soda ash is continuously added and stirred for 15 minutes, the temperature is increased to 55℃, 20g / L of soda ash is added again, and then kept for 40 minutes, and then sampling and washing are performed, and then over-acid is performed; wherein the ratio of the two addition amounts of 50g / L of sodium sulfate is 2:3, and the ratio of the two addition amounts of 20g / L of soda ash is 1:2; wherein the dye formula is: Jinji active red 3BS 133% 0.42%, Kewasu brilliant blue Rs / P 100% 1.76%, and Jinji active black B (navy blue) 133% 0.56%.

[0066] The peracid is specifically: into 40 DEG C water, running 5 min, then adding acetic acid, increasing the temperature to 60 DEG C at a speed of 3 DEG C / min and keeping for 10 min, draining water;

[0067] S8, drying the fabric treated in S7, the temperature is 130 DEG C, and the machine speed is 20 m / min;

[0068] S9, setting: setting the fabric treated in S8, the temperature is 1400 DEG C, and the machine speed is 25 m / min.

[0069] Wherein, high-temperature dispersion leveling agent Sinlever K-541 1g / L is purchased from Kunshan Mingjia; Dispersing agent is purchased from Maotai; Oil removal agent Kieralon F-MFB liq 1g / L is purchased from Anguo Chemical; Environment-friendly repair agent DT-70bs is purchased from Xiamen Honghe Fine Chemical Co., Ltd.

[0070] Table 1

[0071] 1 — v — — — v 2 — — v — v —

[0072] Table 2

[0073]

[0074] Embodiment 5 of the application is:

[0075] S1, according to the raw materials and the proportion in embodiment 1, ZS11 double face machine is used for weaving, and the weaving process is as follows:

[0076] The manufacturing equipment is ZS11 double face machine, the gauge is 24G, the number of ways is 72F, the needle plate parameters are shown in table 1, and the needle cylinder parameters are shown in table 2,

[0077] Wherein, loop formation: v, tuck stitch: [ and float: --.

[0078] Needle plate: 2121; needle cylinder: 1212

[0079] The organization is double face organization, the first and fourth ways are inserted with face yarn, and Antai fiber is used; The third and sixth ways are inserted with connecting yarn, and Coollmax freshFX is used; The second and fifth ways are inserted with ground yarn, and phase change polyester fiber and Coollmax freshFX double yarn are used;

[0080] S2, the fabric treated in S1 is arranged;

[0081] S3, the fabric treated in S2 is pre-set by using a setting machine, the temperature is 135 DEG C, and the machine speed is 27 m / min;

[0082] S4, the fabric treated in S3 is subjected to dyeing pretreatment, and the dyeing pretreatment comprises sequentially performing oxygen bleaching, peracid and oxygen removal;

[0083] Oxygen bleaching is specifically: the fabric treated by S3 is put into water at 50℃, after running for 10 min, soda 5g / L and oil removal agent 2g / L are added, the temperature is raised to 68℃ at a rate of 3℃ / min, hydrogen peroxide is added for 5 min, the temperature is raised to 98℃ at a rate of 3℃ / min, and the temperature is kept for 30 min, the temperature is lowered to 60℃ at a rate of 1.5℃ / min, and the sample is drained;

[0084] Peracid is specifically: the fabric after oxygen bleaching is put into 50℃ water, after running for 5 min, acetic acid is added, the temperature is raised to 60℃ at a rate of 3℃ / min and kept for 10 min, and drained;

[0085] Deoxidation is specifically: the fabric after peracid is put into 30℃ water, deoxidase is added, the temperature is raised to 55℃ at a rate of 2.5℃ / min and kept for 50 min, the sample is drained;

[0086] S5, the grey cloth treated by S4 is placed in 30℃ water, 1g / L high-temperature dispersing leveling agent Sinlever K-541 is added, stirring is carried out, then dispersing material is added, and the first-stage temperature rising is carried out, then the temperature is kept, 1g / L oil removal agent Kieralon F-MFB liq and 1% environmentally-friendly repair agent DT-70bs are continuously added, the second-stage temperature rising is carried out, then the temperature is kept, and the temperature is kept for 40 min after the second-stage temperature rising, and the temperature is lowered to 80℃ for washing; wherein, the first-stage temperature rising temperature is 80℃, the second-stage temperature rising temperature is 102℃, and the third-stage temperature rising temperature is 112℃; wherein, the dispersing material is composed of UN-SE dispersing orange 0.79%, UN-SE dispersing red 0.265% and UN-SE dispersing dark blue 200% 1.83%;

[0087] S6, the fabric treated by S5 is put into 45℃ water, soda and sodium hydrosulfite are added, and the temperature is raised for reduction cleaning;

[0088] S7, the fabric treated by S6 is put into 50℃ water, dyes are added and stirred for 15 min, then 50g / L sodium sulfate is added twice and stirred for 15 min, 20g / L soda is continuously added and stirred for 25 min, then the temperature is raised to 65℃, 20g / L soda is added again, and the temperature is kept, the temperature keeping time is 50 min, and the sample is washed and then subjected to peracid treatment; wherein, the ratio of the two adding amounts of 50g / L sodium sulfate is 2:3, and the ratio of the two adding amounts of 20g / L soda is 1:2; wherein, the dye formula is: Jinji active red 3BS 133% 0.42%, Kewei brilliant blue Rs / P 100% 1.76%, and Jinji active black B (navy blue) 133% 0.56%.

[0089] Peracid is specifically: put into 50℃ water, run for 5 min, add acetic acid, raise the temperature to 60℃ at a rate of 3℃ / min and keep for 10 min, and drain;

[0090] S8, drying the fabric treated in S7 at a temperature of 140 DEG C and a machine speed of 30 m / min;

[0091] S9, setting: setting the fabric treated in S8 at a temperature of 150 DEG C and a machine speed of 35 m / min.

[0092] wherein the high-temperature dispersion leveling agent Sinlever K-541 is 1 g / L, purchased from Kunshan Mingjia; the dispersing agent is purchased from Maotai; the oil removing agent Kieralon F-MFB liq is 1 g / L, purchased from Anguo Chemical; and the environmental protection repairing agent DT-70bs is purchased from Xiamen Honghe Fine Chemical Co., Ltd.

[0093] Embodiment 6 of the application is:

[0094] S1, using ZS11 double-face machine to weave according to the raw materials and the proportion in Embodiment 1, and the weaving process is as follows:

[0095] The manufacturing equipment is ZS11 double-face machine, the gauge is 24G, the number of ways is 72F, the needle plate parameters are shown in Table 1, and the needle cylinder parameters are shown in Table 2.

[0096] wherein the stitch formation is v, and the tuck stitch is the float is --;

[0097] the needle plate is 2121, and the needle cylinder is 1212

[0098] the weave is double-face weave, the face yarns are inserted in the 1st and 4th ways, and the face yarns are Antai Be fiber; the connecting yarns are inserted in the 3rd and 6th ways, and the connecting yarns are Coollmax fresh FX; and the ground yarns are inserted in the 2nd and 5th ways, and the ground yarns are phase-change polyester fiber and Coollmax fresh FX double yarns;

[0099] S2, arranging the fabric treated in S1;

[0100] S3, pre-setting the fabric treated in S2 using a setting machine at a temperature of 130 DEG C and a machine speed of 26 m / min;

[0101] S4, pre-treating the fabric treated in S3 before dyeing, and the pre-treatment before dyeing comprises sequentially performing oxygen bleaching, peracid and oxygen removal;

[0102] the oxygen bleaching is specifically as follows: putting the fabric treated in S3 into water at a temperature of 45 DEG C, running for 8 min, adding soda ash 5 g / L and oil removing agent 2 g / L, increasing the temperature to 66 DEG C at a rate of 3 DEG C / min, adding hydrogen peroxide for 5 min, increasing the temperature to 98 DEG C at a rate of 3 DEG C / min, keeping the temperature for 30 min, and decreasing the temperature to 60 DEG C at a rate of 1.5 DEG C / min to take samples and drain water;

[0103] The over-acidification is specifically: entering 45℃ water, running for 5min, then adding acetic acid, heating to 60℃ at a rate of 3℃ / min and keeping for 10min, and draining;

[0104] The oxygen removal is specifically: entering 25-30℃ water after over-acidification, adding oxygen removal enzyme, heating to 55℃ at a rate of 2.5℃ / min and keeping for 50min, sampling and draining;

[0105] S5, the grey cloth treated in S4 is placed in 25℃ water, 1g / L high-temperature dispersing and leveling agent Sinlever K-541 is added, stirring is performed after adding dispersing material and first-stage heating, second-stage heating is performed after adding 1g / L oil removal agent Kieralon F-MFB liq and 1% environmentally-friendly repairing agent DT-70bs, and third-stage heating is performed after keeping for a certain time, and then keeping for 30min after second-stage heating, and then cooling to 80℃ washing water, wherein the first-stage heating temperature is 75℃, the second-stage heating temperature is 101℃, and the third-stage heating temperature is 111℃; wherein the dispersing material is composed of UN-SE dispersing orange 0.79%, UN-SE dispersing red 0.265% and UN-SE dispersing dark blue 200% 1.83%;

[0106] S6, the fabric treated in S5 is entered into 40℃ water, and soda ash and sodium hydrosulfite are added for heating and reduction cleaning;

[0107] S7, the fabric treated in S6 is entered into 40℃ water, dye is added and stirred for 10min, 50g / L sodium sulfate is added twice and stirred for 10min, 20g / L soda ash is continuously added and stirred for 20min, then the temperature is raised to 60℃, 20g / L soda ash is added again, and keeping is performed, the keeping time is 45min, sampling and washing water are performed, and then over-acidification is performed; wherein the ratio of the two adding amounts of 50g / L sodium sulfate is 2:3, and the ratio of the two adding amounts of 20g / L soda ash is 1:2; wherein the dye formula is: Jinji active red 3BS 133% 0.42%, Kewei brilliant blue Rs / P 100% 1.76%, and Jinji active black B (navy blue) 133% 0.56%.

[0108] The over-acidification is specifically: entering 45℃ water, running for 5min, then adding acetic acid, heating to 60℃ at a rate of 3℃ / min and keeping for 10min, and draining;

[0109] S8, the fabric treated in S7 is dried, the temperature is 135℃, and the machine speed is 25m / min;

[0110] S9, setting: the fabric treated in S8 is set, the temperature is 140-150℃, and the machine speed is 30m / min.

[0111] Among them, the high-temperature dispersing and leveling agent Sinlever K-541 1g / l was purchased from Kunshan Mingjia; the dispersant was purchased from Maotai; the degreasing agent Kieralon F-MFB liq 1g / l was purchased from Anggao Chemical; and the environmentally friendly repair agent DT-70bs was purchased from Xiamen Honghe Fine Chemical Co., Ltd.

[0112] Comparative Example 1

[0113] The only difference between Comparative Example 1 and Example 4 is that conventional PET is used instead of phase change polyester fiber.

[0114] Comparative Example 2

[0115] The only difference between Comparative Example 2 and Example 4 is that the predetermined temperature is 215°C.

[0116] Comparative Example 3

[0117] The only difference between Comparative Example 3 and Example 4 is that the added staining carrier is LEVEX BK conc, purchased from Zhuhai Huada Haohong New Materials Co., Ltd.

[0118] The results of washing and quick-drying tests (based on GB / T 21655.2-2019 for moisture absorption and quick-drying), antibacterial tests (based on GB / T 20944.3-2008 for vibration method), and fabric style tests for Example 4 are shown in Tables 3, 4, and 5.

[0119] The fabric style test specifically involved using the CHES-FY textile material hand feel style evaluation instrument from Nantong Hongda Experimental Instrument Co., Ltd. The fabric was fully rehydrated for 6 hours at a temperature of (20±2)℃ and a relative humidity of (60±3)%. Three samples of fabric were taken from the warp, weft, and 45° diagonal directions, each 50cm x 5cm in size. The samples were placed face up on the instrument, with the front edge aligned with the scale line to ensure centering. The test was then initiated. By testing the fabric's bending, compression, friction, and stretching properties through actions such as pulling, pressing, pinching, and kneading by hand, quantitative indicators such as softness, stiffness, smoothness, and tightness were obtained.

[0120] Table 3

[0121]

[0122]

[0123] Table 4

[0124] Class Standard value and tolerance Test results of inspection Determination Staphylococcus aureus ≥90％ 99％ By Escherichia coli ≥90％ 99％ By Candida albicans ≥90％ 99％ By Klebsiella pneumoniae ≥90％ 99％ By

[0125] Table 5

[0126]

[0127] The heat storage performance test was carried out on Example 4 and Comparative Examples 1-3, specifically: two ovens with the following temperature and humidity conditions were prepared: a: 40℃, 30%RH and b: 20℃, 90%RH, a was adjusted to 20℃, 90%RH, and b was adjusted to 40℃, 30%RH, and the results are shown in Table 1. Fig. 1 and Fig. 2 .

[0128] In summary, the phase change polyester intelligent temperature regulating multifunctional knitted fabric has excellent antibacterial and moisture absorption and perspiration performance, and compared with ordinary polyester fabric, the temperature change of the phase change polyester fabric is more moderate, and the fabric style is suitable for outdoor sports wear fabric in spring and summer.

[0129] The phase change polyester fiber is blended with Coolmax fresh FH fiber and Antai Be fiber to form a heat storage and moisture absorption and perspiration double-layer fabric, the skin layer adopts hydrophobic special-shaped moisture-conducting Coolmax fresh FS fiber, the outer layer adopts Antai Be fiber with excellent moisture absorption, the difference in moisture absorption between the inner and outer layers of the fabric enables the sweat produced by the skin to quickly diffuse to the air through the fabric, the core layer contains phase change temperature regulating material and low melting point polyester, the skin layer protects the phase change stripe material in the core layer, avoiding its loss, and the core layer is added with low melting point polyester, combined with the use of low temperature pre-determined process and disperse dyeing process, the structure of the phase change temperature regulating material is more stable, the temperature regulating durability of the fabric is improved, and the high thermal conductivity powder is added in the skin layer, further improving the heat storage efficiency of the fabric.

[0130] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent transformation or direct or indirect application in the related technical field based on the content of the specification and drawings of the present application is also included in the patent protection scope of the present application.

Claims

1. A phase change polyester intelligent temperature regulating multifunctional knitted fabric, characterized in that, The phase change polyester fiber, the Coolmax fresh FX fiber and the Antaebe fiber are blended, the phase change polyester intelligent temperature regulating multifunctional knitted fabric is a double-layer structure fabric, the Coolmax fresh FX fiber and the phase change polyester fiber are used for knitting the skin layer of the fabric, and the Antaebe fiber is used for knitting the outer layer of the fabric; The phase change polyester fiber comprises a core layer and a skin layer wrapped on the surface of the core layer, the skin layer comprises polyester fiber and high-thermal-conductivity powder, and the core layer comprises phase change temperature regulating material and low-melting-point polyester; The melting point of the low-melting-point polyester is 120-130 DEG C. The manufacturing method of the phase change polyester intelligent temperature regulating multifunctional knitted fabric comprises the following steps in sequence: weaving, cloth finishing, presetting, pre-dyeing treatment, disperse dyeing, reduction cleaning, active dyeing, drying and setting. The disperse dyeing is specifically as follows: the fabric is placed in water at 20-30 DEG C, high-temperature dispersion leveling agent is added and stirred, then disperse dye is added and the fabric is kept warm after first-stage temperature rising, oil removing agent and dye carrier are added and the fabric is kept warm after second-stage temperature rising, and the fabric is kept warm for 20-40 min after third-stage temperature rising, and then the fabric is washed at 80 DEG C, wherein the first-stage temperature rising temperature is 70-80 DEG C, the second-stage temperature rising temperature is 100-102 DEG C, and the third-stage temperature rising temperature is 110-112 DEG C.

2. The phase change polyester smart thermo-regulating multifunctional knitted fabric according to claim 1, characterized in that, The mass ratio of the skin layer to the core layer is 60-70:30-40.

3. The phase change polyester smart thermo-regulating multifunctional knitted fabric according to claim 1, characterized in that, The high-thermal-conductivity powder is nano-aluminum oxide.

4. The phase change polyester smart thermo-regulating multifunctional knitted fabric according to claim 1, characterized in that, The preset temperature is 125-135 DEG C.

5. The phase change polyester smart thermo-regulating multifunctional knitted fabric according to claim 1, characterized in that, The dye carrier is environment-friendly repair agent DT-70bs.

6. The phase change polyester smart thermo-regulating multifunctional knitted fabric according to claim 1, characterized in that, Specifically comprising the following steps: S1, weaving according to the raw materials in claim 1; S2, finishing the fabric treated in S1; S3, presetting the fabric treated in S2 by using a setting machine, the temperature is 125-135 DEG C, and the machine speed is 25-27 m / min; S4, pre-dyeing treatment of the fabric treated in S3, the pre-dyeing treatment comprises oxygen bleaching, peracid and oxygen removal in sequence; S5, disperse dyeing of the fabric treated in S4; S6, reduction cleaning of the fabric treated in S5 by adding soda ash and sodium hydrosulfite and raising the temperature; S7, the fabric treated in S6 is added into water at 30-50 DEG C, dye is added and stirred for 5-15 min, sodium sulphate is added twice and stirred for 5-15 min, soda ash is continuously added and stirred for 15-25 min, then the temperature is raised to 55-65 DEG C, soda ash is added again, and the fabric is kept warm, the keeping warm time is 40-50 min, the fabric is sampled and washed, and then peracid is added; S8, drying of the fabric treated in S7, the temperature is 130-140 DEG C, and the machine speed is 20-30 m / min; S9, setting of the fabric treated in S8, the temperature is 140-150 DEG C, and the machine speed is 25-35 m / min.

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