A soft and highly elastic floor mat and a method of making the same

Abstract

The application relates to the field of household articles, in particular to a soft high-elasticity floor mat and a preparation method thereof. The soft high-elasticity floor mat comprises a yarn layer, a base cloth layer, a glue layer and an anti-skid layer arranged in sequence, the yarn layer is formed by tufting polyester yarn on the base cloth layer, the count of the polyester yarn is 1500D-3500D, the fineness of a single polyester fiber in the polyester yarn is 7.5-14.5 dtex, and the number of the polyester fibers in the polyester yarn is 200-400F. The preparation method comprises the following steps: tufting, using a tufting machine to tuft the polyester yarn on the base cloth layer to form the yarn layer; yarn fixing, after the steps of glue adjusting-foaming, cloth feeding-gluing and drying, the fire-retardant glue is applied to the side of the base cloth layer away from the yarn layer; the anti-skid layer is compounded to the side of the base cloth layer away from the yarn layer; printing, cutting and sewing to obtain the soft high-elasticity floor mat. The floor mat prepared by the application has good softness and good elastic effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of household supplies, in particular to a soft and high-elasticity floor mat and a preparation method thereof. BACKGROUND

[0002] Floor mats are generally used in indoor spaces such as rooms and living rooms, and have certain requirements for the comfort and softness of the floor mat. In order to meet the comfort requirements, the surface pile of the floor mat is made soft and comfortable.

[0003] Generally, the surface pile is made soft by reducing the fiber fineness, thereby improving the softness of the floor mat surface. However, too small fiber fineness makes the fiber too soft, and when the floor mat is pressed, the resilience is poor, and it is easy to be squeezed and deformed, and cannot recover to the original fluffy state. SUMMARY

[0004] In order to make the floor mat have good softness and good resilience, the present application provides a soft and high-elasticity floor mat and a preparation method thereof.

[0005] In a first aspect, the present application provides a soft and high-elasticity floor mat, which adopts the following technical solution:

[0006] A soft and high-elasticity floor mat, comprising yarn layers, base cloth layers, glue layers and anti-skid layers arranged in sequence, characterized in that the yarn layers are formed by polyester yarn tufting on the base cloth layers, the yarn count of the polyester yarn is 1500D-3500D, the fineness of a single polyester fiber in the polyester yarn is 7.5-14.5dtex, and the number of polyester fibers in the polyester yarn is 200-400F.

[0007] By limiting the yarn count, fineness and fiber number of a single yarn of the polyester yarn of the yarn layer, the yarn layer has good softness and high resilience.

[0008] Preferably, the yarn count of the polyester yarn is 2500D-3500D, the fineness of a single polyester fiber in the polyester yarn is 8.3-8.75dtex, and the number of polyester fibers in the polyester yarn is 200-300F.

[0009] Preferably, the polyester yarn is a polyester continuous bulk filament yarn, and the polyester continuous bulk filament yarn is one of a polyester bulk filament network yarn and a polyester bulk filament twisted and shaped yarn.

[0010] By adopting the above technical solution, the polyester continuous bulk filament yarn has good breaking strength, breaking elongation, bulkiness and resilience.

[0011] Preferably, the pile height of the yarn layer is 5.5-6.5mm.

[0012] Preferably, the weight of the yarn layer is 650-750g / m 2 .

[0013] By adopting the above technical scheme, the resilience of the yarn layer is better under the condition of limiting the weight of the yarn layer.

[0014] Preferably, the base cloth layer is high-temperature-resistant polyester non-woven fabric, and the specification of the base cloth layer is 80-100g / m 2 .

[0015] By adopting the above technical scheme, the thickness of the floor mat is more comfortable by limiting the specification of the base cloth layer, and the floor mat also has certain flame retardant performance by selecting high-temperature-resistant polyester non-woven fabric.

[0016] Preferably, the polyester yarn is modified polyester yarn prepared by modification treatment before forming the yarn layer by tufting, and the preparation method of the modified polyester yarn comprises the following steps:

[0017] Step 1: dip the polyester fiber in an alkali treatment liquid for alkali treatment, the temperature of the alkali treatment liquid is 95-100℃, the dipping time is 20-25min, and after the dipping is completed, wash and dry to obtain alkali-treated polyester fiber;

[0018] Step 2: heat the modification liquid to 40-45℃ and keep constant temperature, then dip the alkali-treated polyester fiber in the modification liquid for 55-65min;

[0019] Step 3: heat the modification liquid to 50-60℃, keep constant temperature and continue to dip for 1.5-2h;

[0020] Step 4: heat the modification liquid to 60-70℃, keep constant temperature and continue to dip for 1.5-2h;

[0021] Step 5: wash the alkali-treated polyester fiber dipped in the modification liquid with clean water for three times, and dry the modified polyester fiber.

[0022] By adopting the above technical scheme, the components in the modification liquid can be fully combined with the polyester fiber after the polyester fiber is subjected to alkali treatment, and then the modification liquid and the polyester fiber are fully reacted by the method of gradient heating, the modification effect of the modification liquid is improved, so that the fiber layer formed by tufting the polyester fiber not only has the advantage of high elasticity, but also makes the polyester fiber softer, smoother and more elastic.

[0023] Preferably, the modifying liquid is prepared from the following raw materials by weight: 0.2-0.5 parts of penetrant, 5.0-5.5 parts of zinc stearate, 15-18 parts of elastic oil agent, 35-40 parts of deionized water, 1-2 parts of dimethyl diallyl ammonium chloride.

[0024] By adopting the above technical solution, dimethyl diallyl ammonium chloride is introduced into the polyester fiber, which can endow the fiber with antibacterial properties, and in combination with the elastic oil agent and zinc stearate, the elasticity and soft, smooth touch of the polyester fiber can be improved, so that the floor mat is more comfortable and can well rebound, and also has good antibacterial effect.

[0025] In a second aspect, the application provides a preparation method of a soft and high-elasticity floor mat, which adopts the following technical solution:

[0026] A preparation method of a soft and high-elasticity floor mat, comprising the following steps:

[0027] Step 1: tufting, using a tufting machine to tuft polyester yarns onto a base cloth layer to form a yarn layer;

[0028] Step 2: yarn fixing, after the steps of glue adjusting-foaming, cloth feeding-gluing, and drying, the fire-retardant glue is applied to the side of the base cloth layer away from the yarn layer to fix the yarn layer;

[0029] Step 3: the anti-skid layer is compounded to the side of the base cloth layer away from the yarn layer to form an anti-skid layer;

[0030] Step 4: printing, cutting and sewing are performed to prepare a soft and high-elasticity floor mat.

[0031] Preferably, the needle pitch of the tufting in step 1 is 0.1-0.125 inches, and the needle density is 44-48 needles / 10 cm.

[0032] By adopting the above technical solution, by limiting the parameters of tufting, the spacing of each yarn is controlled, that is, the softness and comfort of the yarn layer are improved, and the resilience of the yarn layer is also improved.

[0033] In summary, the application has the following beneficial effects:

[0034] 1. Since the application limits the material of the specific yarn layer by limiting the specifications and types of polyester yarns, and limits the needle pitch, needle density, yarn height and weight when the yarn layer is formed, the yarn layer has a soft and smooth hand feeling, good elasticity and resilience, and maintains the loftiness of the floor mat.

[0035] 2, Preferably, the polyester fiber is modified in the application, so that the polyester fiber has better elasticity and antibacterial performance, so that the prepared floor mat has soft and smooth hand feeling, good elasticity and rebound performance, and good antibacterial performance. DETAILED DESCRIPTION

[0036] Preparation examples of raw materials and / or intermediates

[0037] Alkaline treatment solution: 10g / L sodium hydroxide solution is selected.

[0038] Base cloth layer: high-temperature-resistant polyester non-woven fabric is selected as the base cloth layer, which is cut into 1m*1m specifications, and the specification after cutting is 90g / m 2 .

[0039] Anti-skid layer: acrylic fabric is selected as the anti-skid layer, which is cut into 1m*1m specifications, and the specification after cutting is 120g / m 2 The type of the anti-skid layer can be replaced according to actual needs, and the application embodiment does not limit the specific type used as the anti-skid layer.

[0040] Polyester fiber: polyester bulk filament network yarn is selected, the count is 3000D, the fineness of a single polyester fiber is 8.5dtex, and the number of roots is 250F.

[0041] Preparation example 1

[0042] Modified liquid: 0.4kg of penetrant JFC, 5.2kg of zinc stearate, 15kg of water-soluble environmentally friendly elastic oil agent ZC-339, 38kg of deionized water, and 1kg of dimethyl diallyl ammonium chloride are mixed and stirred for 10min at a speed of 150r / min to prepare the modified liquid.

[0043] Preparation example 2

[0044] The difference between preparation example 2 and preparation example 1 is that 0.4kg of penetrant JFC, 5.2kg of zinc stearate, 18kg of water-soluble environmentally friendly elastic oil agent ZC-339, 38kg of deionized water, and 1kg of dimethyl diallyl ammonium chloride are mixed and stirred for 10min at a speed of 150r / min to prepare the modified liquid.

[0045] Preparation example 3

[0046] The difference between preparation example 3 and preparation example 1 is that 0.4kg of penetrant JFC, 5.2kg of zinc stearate, 17kg of water-soluble environmentally friendly elastic oil agent ZC-339, 38kg of deionized water, and 1kg of dimethyl diallyl ammonium chloride are mixed and stirred for 10min at a speed of 150r / min to prepare the modified liquid.

[0047] Preparation example 4

[0048] Preparation Example 4 is different from Preparation Example 1 in that 0.4 kg of penetrant JFC, 5.2 kg of zinc stearate, 17 kg of water-soluble environmentally friendly elastic oil agent ZC-339, 38 kg of deionized water, and 2 kg of dimethyl diallyl ammonium chloride are mixed and stirred for 10 min at a speed of 150 rpm to prepare a modification liquid.

[0049] Preparation Example 5

[0050] Preparation Example 5 is different from Preparation Example 1 in that 0.4 kg of penetrant JFC, 5.2 kg of zinc stearate, 17 kg of water-soluble environmentally friendly elastic oil agent ZC-339, 38 kg of deionized water, and 1.8 kg of dimethyl diallyl ammonium chloride are mixed and stirred for 10 min at a speed of 150 rpm to prepare a modification liquid.

[0051] Preparation Example 6

[0052] The preparation method of the modified polyester yarn comprises the following steps:

[0053] Step 1: The polyester fiber is immersed in an alkali treatment liquid for alkali treatment, the mass ratio of the polyester fiber to the alkali treatment liquid is 1:12, and the temperature of the alkali treatment liquid is raised to 95℃, the immersion time is 25 min, after the immersion is completed, the alkali treatment polyester fiber is washed and dried to obtain an alkali treatment polyester fiber;

[0054] Step 2: The modification liquid is heated to 40℃ and kept constant, then the alkali treatment polyester fiber is immersed in the modification liquid of Preparation Example 1, the mass ratio of the polyester fiber to the modification liquid is 1:12, and the time is 55 min;

[0055] Step 3: The modification liquid is heated to 55℃ and kept constant for continuous immersion for 2 h;

[0056] Step 4: The modification liquid is heated to 65℃ and kept constant for continuous immersion for 1.5 h;

[0057] Step 5: The alkali treatment polyester fiber immersed in the modification liquid is washed with clean water for three times, and the modified polyester fiber after drying.

[0058] Preparation Example 7

[0059] Preparation Example 7 is different from Preparation Example 1 in that Step 2: The modification liquid is heated to 40℃ and kept constant, then the alkali treatment polyester fiber is immersed in the modification liquid of Preparation Example 2, the mass ratio of the polyester fiber to the modification liquid is 1:12, and the time is 55 min.

[0060] Preparation Example 8

[0061] Preparation Example 8 differs from Preparation Example 1 in that: Step 2: the modification liquid is warmed to 40℃ and kept constant, then the alkali treated polyester fiber is immersed in the modification liquid of Preparation Example 3, the mass ratio of polyester fiber to modification liquid is 1:12, and the time is 55 min.

[0062] Preparation Example 9

[0063] Preparation Example 9 differs from Preparation Example 1 in that: Step 2: the modification liquid is warmed to 40℃ and kept constant, then the alkali treated polyester fiber is immersed in the modification liquid of Preparation Example 4, the mass ratio of polyester fiber to modification liquid is 1:12, and the time is 55 min.

[0064] Preparation Example 10

[0065] Preparation Example 10 differs from Preparation Example 1 in that: Step 2: the modification liquid is warmed to 40℃ and kept constant, then the alkali treated polyester fiber is immersed in the modification liquid of Preparation Example 5, the mass ratio of polyester fiber to modification liquid is 1:12, and the time is 55 min.

[0066] Example

[0067] Example 1

[0068] A method for preparing a soft and high-elasticity floor mat, comprising the following steps:

[0069] Step 1: tufting, using a tufting machine to tuft polyester bulked filament network yarns onto a base fabric layer, the tufting needle pitch is 0.125 inches, the needle density is 44 needles / 10 cm, forming a yarn layer with a pile height of 5.5 mm and a weight of 650 g / m 2 ;

[0070] Step 2: fixing the yarns, after the glue foaming, cloth coating, and drying steps, the glue foaming process comprises adding glue, flame retardant, water, silane coupling agent, and thickening agent into a stirrer, wherein the glue is VAE glue, 0.3 kg is added, the flame retardant is DOP, zinc borate, antimony trioxide, and decabromodiphenyl ethane, 0.15 kg, 0.05 kg, 0.05 kg, and 0.15 kg of DOP, zinc borate, antimony trioxide, and decabromodiphenyl ethane are added respectively, 0.2 kg of water is added, the silane coupling agent is coupling agent KH-550, 0.015 kg is added, the thickening agent is acrylic alkali swelling thickening agent, 0.015 kg is added, and the mixture is stirred for 15 minutes at a speed of 200 rad to make the components uniformly mixed and foaming occurs, preparing flame-retardant glue for standby use; the cloth coating-glue coating process comprises uniformly coating the prepared flame-retardant glue on the side of the base fabric layer away from the yarn layer, so that the yarn layer and the base fabric layer are fixed, and the coating amount of the flame-retardant glue is 150 g / m 2 ; then drying at 180℃ for 20 min in a drying machine to form a flame-retardant layer;

[0071] Step 3: Compound the anti-slip layer to the side of the base cloth layer away from the yarn layer, the base cloth layer and the anti-slip layer are bonded by TPE adhesive, forming an anti-slip layer;

[0072] Step 4: According to the requirements, printing, cutting and sewing are carried out to prepare a flame-retardant floor mat with a size of 1 m x 1 m.

[0073] Example 2

[0074] Example 2 differs from Example 1 in that: Step 1: tufting, using a tufting machine to tuft polyester bulked filament network yarn onto the base cloth layer, the needle pitch of tufting is 0.125 inch, the needle density is 48 needles / 10 cm, forming a yarn layer with a pile height of 5.5 mm and a weight of 650 g / m 2 .

[0075] Example 3

[0076] Example 3 differs from Example 1 in that: Step 1: tufting, using a tufting machine to tuft polyester bulked filament network yarn onto the base cloth layer, the needle pitch of tufting is 0.125 inch, the needle density is 46 needles / 10 cm, forming a yarn layer with a pile height of 5.5 mm and a weight of 650 g / m 2 .

[0077] Example 4

[0078] Example 4 differs from Example 1 in that: Step 1: tufting, using a tufting machine to tuft polyester bulked filament network yarn onto the base cloth layer, the needle pitch of tufting is 0.125 inch, the needle density is 46 needles / 10 cm, forming a yarn layer with a pile height of 6.5 mm and a weight of 750 g / m 2 .

[0079] Example 5

[0080] Example 5 differs from Example 1 in that: Step 1: tufting, using a tufting machine to tuft polyester bulked filament network yarn onto the base cloth layer, the needle pitch of tufting is 0.125 inch, the needle density is 46 needles / 10 cm, forming a yarn layer with a pile height of 6 mm and a weight of 700 g / m 2 .

[0081] Example 6

[0082] Example 6 differs from Example 1 in that: Step 1: tufting, using a tufting machine to tuft the modified polyester fiber prepared in Preparation Example 6 onto the base cloth layer, the needle pitch of tufting is 0.125 inch, the needle density is 46 needles / 10 cm, forming a yarn layer with a pile height of 6 mm and a weight of 700 g / m 2 .

[0083] Example 7

[0084] Example 7 differs from Example 1 in that: Step 1: tufting, the modified polyester fibers of Preparation Example 7 were tufted onto a base fabric layer using a tufting machine at a stitch length of 0.125 inches and a stitch density of 46 stitches per 10 cm to form a yarn layer having a pile height of 6 mm and a weight of 700 g / m 2 .

[0085] Example 8

[0086] Example 8 differs from Example 1 in that: Step 1: tufting, the modified polyester fibers of Preparation Example 8 were tufted onto a base fabric layer using a tufting machine at a stitch length of 0.125 inches and a stitch density of 46 stitches per 10 cm to form a yarn layer having a pile height of 6 mm and a weight of 700 g / m 2 .

[0087] Example 9

[0088] Example 9 differs from Example 1 in that: Step 1: tufting, the modified polyester fibers of Preparation Example 9 were tufted onto a base fabric layer using a tufting machine at a stitch length of 0.125 inches and a stitch density of 46 stitches per 10 cm to form a yarn layer having a pile height of 6 mm and a weight of 700 g / m 2 .

[0089] Example 10

[0090] Example 10 differs from Example 1 in that: Step 1: tufting, the modified polyester fibers of Preparation Example 10 were tufted onto a base fabric layer using a tufting machine at a stitch length of 0.125 inches and a stitch density of 46 stitches per 10 cm to form a yarn layer having a pile height of 6 mm and a weight of 700 g / m 2 .

[0091] Comparative Example

[0092] Comparative Example 1

[0093] Comparative Example 1 differs from Example 1 in that: Step 1: tufting, the polyester bulked filament network yarns were tufted onto a base fabric layer using a tufting machine at a stitch length of 0.1 inches and a stitch density of 52 stitches per 10 cm to form a yarn layer having a pile height of 5.5 mm and a weight of 650 g / m 2 .

[0094] Comparative Example 2

[0095] Comparative Example 2 differs from Example 1 in that: Step 1: tufting, the polyester bulked filament network yarns were tufted onto a base fabric layer using a tufting machine at a stitch length of 0.125 inches and a stitch density of 40 stitches per 10 cm to form a yarn layer having a pile height of 5.5 mm and a weight of 650 g / m 2 .

[0096] Comparative Example 3

[0097] Comparative Example 3 differs from Example 1 in that Step 1: tufting, using a tufting machine to tuft polyester bulked continuous filament network yarns onto the base fabric layer, the tufting stitch length is 0.125 inch, the needle density is 44 needles / 10 cm, forming a yarn layer with a pile height of 5.0 mm, a weight of 600 g / m 2 .

[0098] Comparative Example 4

[0099] Comparative Example 4 differs from Example 1 in that Step 1: tufting, using a tufting machine to tuft polyester bulked continuous filament network yarns onto the base fabric layer, the tufting stitch length is 0.125 inch, the needle density is 44 needles / 10 cm, forming a yarn layer with a pile height of 7 mm, a weight of 800 g / m 2 .

[0100] Performance test

[0101] The products of Examples 1-11 and Comparative Examples 1-4 were cut into a size of 25 cm X 25 cm as test samples, and 16 groups of samples were taken for each example and comparative example to test and take the average value.

[0102] 1. Resilience: using a carpet tester, setting the pressure to 200 N, maintaining for 10 s, after the pressure is released, detecting the pile height of the yarn layer after 30 s of recovery, and calculating the resilience.

[0103] 2. Softness and comfort: by professional testers, testing the hand feeling of the samples of Examples 1-11 and Comparative Examples 1-4.

[0104] 3. Antibacterial performance: according to the GB / T 20944-2007 “Evaluation of Antibacterial Performance of Textiles” standard, testing the antibacterial ability of the samples of Examples 1-11 and Comparative Examples 1-4 against gram-negative bacteria and gram-positive bacteria.

[0105] Table 1 Performance test table of Examples 1-7 and Comparative Examples 1-4

[0106]

[0107] Table 2 Performance test table of Examples 8-11

[0108] Item Resilience (%) Antibacterial performance (%) Softness and comfort Example 7 94.1 99.1 Soft and smooth hand, very good elasticity Example 8 94.5 99.2 Soft and smooth hand, very good elasticity Example 9 94.7 99.7 Soft and smooth hand, very good elasticity Example 10 95.0 99.9 Soft and smooth hand, very good elasticity

[0109] It can be seen from the combination of examples 1-6 and comparative examples 1-4 and table 1 that the stitch length and stitch density of the tufting restricted by the examples of the application and the pile height and weight of the yarn layer have an influence on the softness and smoothness, elasticity and resilience of the floor mat, and the use of modified polyester fibers can make the elasticity and resilience of the yarn layer of the floor mat better, and it can also be seen from the comparative examples that too large or too small stitch density, pile height and weight of the yarn layer will affect the elasticity and resilience of the floor mat, and considering the comprehensive performance, the performance of example 6 is the best.

[0110] It can be seen from the combination of examples 7-10 and table 2 that the modified polyester fibers prepared by using different modification liquids have an influence on the softness and smoothness, elasticity and resilience of the floor mat after being used to prepare the yarn layer, and when the proportion of each component in the modification liquid is different, it has a greater influence on the resilience and antibacterial performance, and considering the comprehensive performance, the yarn layer prepared by the modified polyester fibers in example 10 makes the softness and smoothness, elasticity, resilience and antibacterial performance of the floor mat better.

[0111] The specific embodiments are only an explanation of the application, and are not a limitation of the application, and those skilled in the art can make modifications to the embodiments without creative contribution after reading the specification, but as long as it is within the scope of the claims of the application, it is protected by the patent law.

Claims

1. A soft and highly elastic floor mat comprising a yarn layer, a base cloth layer, a flame retardant layer and an anti-skid layer arranged in sequence, characterized in that, The yarn layer is formed by tufting polyester yarn on the base cloth layer, the count of the polyester yarn is 1500D-3500D, the fineness of a single polyester fiber in the polyester yarn is 7.5-14.5dtex, and the number of polyester fibers in the polyester yarn is 200-400F; The height of the yarn layer is 5.5-6.5mm; The weight of the yarn layer is 650-750g / ㎡; The stitch length of the tufting is 0.1-0.125 inches, and the needle density is 44-48 needles / 10cm; The fire-retardant layer is prepared through the steps of glue adjusting-foaming, cloth coating-gluing and drying, wherein the glue adjusting-foaming process comprises adding glue, fire-retardant, water, silane coupling agent and thickening agent into a stirrer, wherein the glue is VAE glue, the adding amount is 0.3 kg, the fire-retardant is DOP, zinc borate, antimony trioxide and decabromodiphenyl ethane, the adding amount of DOP, zinc borate, antimony trioxide and decabromodiphenyl ethane is 0.15 kg, 0.05 kg, 0.05 kg and 0.15 kg respectively, the adding amount of water is 0.2 kg, the silane coupling agent is KH-550, the adding amount of the silane coupling agent is 0.015 kg, the thickening agent is acrylic alkali swelling thickening agent, the adding amount of the acrylic alkali swelling thickening agent is 0.015 kg, the components are uniformly mixed and foaming phenomenon is generated, and the fire-retardant glue is prepared for standby use; the cloth coating-gluing process comprises uniformly coating the prepared fire-retardant glue on the side of the base cloth layer away from the yarn layer, so that the yarn layer and the base cloth layer are fixed, and the coating amount of the fire-retardant glue is 150 g / m 2 Then, the yarn layer and the base cloth layer are dried in a drying machine at 180℃ for 20 min to form the fire-retardant layer.

2. The soft, high elasticity floor mat of claim 1, wherein: The count of the polyester yarn is 2500D-3500D, the fineness of a single polyester fiber in the polyester yarn is 8.3-8.75dtex, and the number of polyester fibers in the polyester yarn is 200-300F.

3. The soft, high elasticity floor mat of claim 1, wherein: The base cloth layer is a high-temperature-resistant polyester non-woven fabric, and the specification of the base cloth layer is 80-100g / ㎡.

4. The soft, high elasticity floor mat of claim 1, wherein: The polyester yarn is prepared into modified polyester yarn through modification treatment before forming the yarn layer by tufting, and the preparation method of the modified polyester yarn comprises the following steps: Step 1: The polyester fiber is immersed in an alkali treatment solution for alkali treatment, the temperature of the alkali treatment solution is 95-100℃, the immersion time is 20-25min, and after the immersion is completed, the alkali-treated polyester fiber is washed and dried to obtain the alkali-treated polyester fiber; Step 2: The modification liquid is heated to 40-45℃ and kept at constant temperature, and then the alkali-treated polyester fiber is immersed in the modification liquid for 55-65min; Step 3: The modification liquid is heated to 50-60℃ and kept at constant temperature for continuous immersion for 1.5-2h; Step 4: The modification liquid is heated to 60-70℃ and kept at constant temperature for continuous immersion for 1.5-2h; Step 5: The alkali-treated polyester fiber immersed in the modification liquid is washed with clean water for three times, and the modified polyester fiber is obtained after drying.

5. A soft, high elasticity floor mat according to claim 4, wherein: The modification liquid is prepared from the following raw materials by weight: 0.2-0.5 parts of penetrant, 5.0-5.5 parts of zinc stearate, 15-18 parts of elastic oil agent, 35-40 parts of deionized water, and 1-2 parts of dimethyl diallyl ammonium chloride.

6. A preparation method of a soft high-elasticity floor mat according to any one of claims 1-3, comprising the following steps: Step 1: tufting, using a tufting machine to tuft the polyester yarn on the base cloth layer to form a yarn layer; Step 2: yarn fixing, after the steps of glue adjusting-foaming, cloth feeding-gluing, and drying, the fire-retardant glue is applied to the side of the base cloth layer away from the yarn layer to fix the yarn layer; Step 3: the anti-slip layer is compounded to the side of the base cloth layer away from the yarn layer to form an anti-slip layer; Step 4: printing, cutting, and sewing to prepare the soft high-elasticity floor mat.

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