Xylitol cellulose mask cloth as well as preparation method and application thereof

Abstract

The invention provides xylitol cellulose mask cloth and a preparation method and application thereof.The xylitol cellulose mask cloth comprises a cotton yarn layer of a grid structure, and xylitol cellulose fiber layers are arranged on the surfaces of the two sides of the cotton yarn layer; fibers of the cotton yarn layer and fibers of the xylitol cellulose fiber layer are interspersed and entangled with each other; cotton yarns and xylitol cellulose fibers are selected to be matched, the structure of the cotton yarn layer is specially limited, and the fibers of the cotton yarn layer and the fibers of the xylitol cellulose fiber layer are limited to be interspersed and entangled mutually, so that the obtained xylitol cellulose mask cloth has excellent air permeability, a cool feeling and a soothing effect; and meanwhile, the mask has a relatively high liquid absorption rate, can bear more mask essence per unit area, can prolong the skin attaching time when being used as a mask, and can exert a greater essence effect.

Description

Technical Field

[0001] The invention belongs to the technical field of non-woven fabrics, and specifically relates to a xylitol cellulose facial mask cloth and a preparation method and application thereof. Background Art

[0002] With the continuous improvement of living standards, people pay more and more attention to the condition of their skin, so the demand for facial masks continues to increase. As a carrier of facial mask essence, facial mask cloth comes into direct contact with the face when used, and has also developed from a single carrier role to a functional direction. Facial masks with functions such as health care, antibacterial, whitening, and moisturizing are becoming more and more popular among consumers, and the market in this field has great potential for future development.

[0003] For example, CN110053317A discloses a multifunctional composite spunlace nonwoven mask base fabric with rapid moisture conduction and its processing technology, which comprises an upper, middle and lower layer, wherein a layer of perforated PE film is arranged between the middle and lower layers, and the upper and middle layers are compounded and perforated by spunlace to serve as a rapid moisture conduction layer, and the lower layer is a composite spunlace fabric of honeysuckle fiber and xylitol fiber, which serves as the bottom layer of the base fabric and is compounded with the moisture conduction layer by hot air bonding; the multifunctional composite spunlace nonwoven mask base fabric with rapid moisture conduction provided by the invention has a differential capillary effect of the moisture conduction layer, which greatly improves the absorption rate of the nutrient solution, has a high liquid retention rate, has a good moisturizing effect, and has the medical and health care effects of antibacterial, antibacterial, heat-clearing and detoxifying, thereby achieving a good beauty and skin care effect.

[0004] However, the existing facial mask cloths including the above invention have poor air permeability and reduced comfort in use, and are prone to suffocating the skin, especially in hot summer.

[0005] Therefore, in view of the above technical problems, it is urgent to develop a xylitol cellulose mask cloth with good air permeability, high liquid carrying capacity, cool feeling and soothing effect. Summary of the invention

[0006] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a xylitol cellulose facial mask cloth and a preparation method and application thereof, so that the obtained xylitol cellulose facial mask cloth has excellent air permeability, a cool feeling and a soothing effect, which is beneficial to promote body surface cooling and fading redness, and at the same time has a higher liquid absorption rate, and can carry more facial mask essence per unit area. When used as a facial mask, it can prolong the skin-adhering time and exert a greater essence effect.

[0007] In order to achieve the purpose of the invention, the present invention adopts the following technical solutions:

[0008] In a first aspect, the present invention provides a xylitol cellulose facial mask cloth, wherein the xylitol cellulose facial mask cloth comprises a cotton yarn layer having a grid structure;

[0009] Xylitol cellulose fiber layers are arranged on both side surfaces of the cotton yarn layer, and the fibers of the cotton yarn layer and the fibers of the xylitol cellulose fiber layer are interlaced and entangled with each other.

[0010] Xylitol cellulose fiber is a type of regenerated cellulose fiber, which is made from natural plants (such as eucalyptus, birch, poplar or spruce, etc.) as raw materials. No chemical agents are required in the preparation process, and it is harmless to the environment. The xylitol cellulose fiber has good air permeability, moisture absorption and skin affinity, allowing the skin to breathe freely. It also has good antibacterial properties, which can effectively prevent bacterial growth, and is suitable for sanitary materials, beauty materials, etc.

[0011] Based on the above content, the present invention uses the xylitol cellulose fiber as the main material, and matches the xylitol cellulose fiber layer containing it with a cotton yarn layer, specifically including: arranging the xylitol cellulose fiber layers on both sides of the cotton yarn layer, and limiting the cotton yarn layer to have a grid structure, and the fibers of the cotton yarn layer and the fibers of the xylitol cellulose fiber layer are interlaced and entangled with each other; firstly, the xylitol cellulose fiber layer and the cotton yarn layer are matched, while maintaining the good softness of the obtained facial mask cloth, it can not only improve the liquid absorption rate, so that the unit area carries more essence, but also improve the air permeability of the material, further improve the cool feeling, and not Secondly, since the fibers of the cotton yarn layer and the fibers of the xylitol cellulose fiber layer are intertwined and entangled with each other, the composite strength between the layers can be effectively enhanced; finally, since the cotton yarn layer has a grid structure, the fibers of the xylitol cellulose fiber layer located between the two layers can form longitudinal and transverse fiber textures in the middle of the grid holes of the cotton yarn layer, thereby penetrating microporous channels of the upper, middle and lower layers. The microporous channels are conducive to liquid conduction, thereby further improving the liquid absorption rate and air permeability of the obtained xylitol cellulose facial mask cloth, and effectively promoting the conduction of essence. When used as a facial mask, it can prolong the skin-adhering time and exert a greater essence effect.

[0012] In the present invention, no special requirements are made on the natural plant species and preparation process for extracting the xylitol cellulose fibers, as long as the xylitol cellulose fibers can be successfully obtained.

[0013] Preferably, the weight of the xylitol cellulose mask cloth is 35 to 100 g / m 2 , for example 35g / m 2 , 40g / m 2 , 45g / m 2 , 50g / m 2 , 55g / m 2 , 60g / m 2 , 70g / m 2 , 80g / m 2 , 90g / m2 or 100g / m 2 wait.

[0014] Preferably, the xylitol cellulose facial mask cloth is prepared by a wet-laid hydroentanglement process.

[0015] Preferably, the mass percentage of the cotton yarn layer in the xylitol cellulose facial mask cloth is 28-80%, for example, 28%, 30%, 40%, 50%, 60%, 70% or 80%.

[0016] Preferably, the length×width of the grid structure in the cotton yarn layer is 1-2 mm×1-2 mm, which is an average value.

[0017] Preferably, the cotton yarn layer comprises cotton yarn, and the yarn count of the cotton yarn is 40 to 60, such as 40, 45, 50, 55 or 60.

[0018] Preferably, the mass percentage of the xylitol cellulose fiber layer in the xylitol cellulose facial mask cloth is 20-72%, for example, 20%, 30%, 40%, 50%, 60%, 70% or 72%.

[0019] Preferably, the xylitol cellulose fiber layer comprises xylitol cellulose fibers and other fibers.

[0020] Preferably, the fineness of the xylitol cellulose fiber is 0.8-1.2 dtex, for example, 0.8 dtex, 0.85 dtex, 0.9 dtex, 0.95 dtex, 1 dtex, 1.1 dtex or 1.2 dtex.

[0021] Preferably, the mass percentage of xylitol cellulose fibers in the xylitol cellulose layer is ≥40%, for example, 40%, 50%, 60%, 70%, 80% or 90%.

[0022] Preferably, the other fibers include any one of mixed viscose fibers, lyocell fibers or modal fibers, or a combination of at least two thereof.

[0023] In a second aspect, the present invention provides a method for preparing the xylitol cellulose facial mask cloth as described in the first aspect, the preparation method comprising: forming a xylitol cellulose fiber layer on both side surfaces of a cotton yarn layer having a grid structure to obtain the xylitol cellulose facial mask cloth.

[0024] Preferably, the preparation method specifically comprises the following steps:

[0025] (1) overlapping the fibers of the cotton yarn layer in a crisscross pattern to form a cotton yarn layer having a grid structure;

[0026] (2) A wet-laid hydroentanglement process is used to form xylitol cellulose fiber layers on both sides of the cotton yarn layer, and the xylitol cellulose facial mask cloth is obtained after drying.

[0027] Preferably, the wet-laid spunlacing process in step (2) specifically comprises the following steps:

[0028] (2a) providing a fiber suspension containing fibers forming the xylitol cellulose fiber layer;

[0029] (2b) dehydrating the fiber suspension to form a web to obtain a wet-process xylitol cellulose fiber layer containing xylitol cellulose fibers;

[0030] (2c) laminating the wet-process xylitol cellulose fiber layer and one side surface of the cotton yarn layer, and subjecting the layer to hydroentanglement to obtain a composite layer;

[0031] (2d) The wet-process xylitol cellulose fiber layer is overlapped with the surface of the composite layer on the side away from the xylitol cellulose fiber layer, subjected to water entanglement, and dried to obtain the xylitol cellulose facial mask cloth.

[0032] Preferably, the mass percentage of the fibers in the fiber suspension of step (2a) is 0.3-0.5%, for example, 0.3%, 0.35%, 0.4%, 0.45% or 0.5%.

[0033] Preferably, the method for preparing the fiber suspension in step (2a) comprises: mixing the fibers of the xylitol cellulose fiber layer with water, and putting the mixture into a fiber dispersing device for pre-dispersing to obtain the fiber suspension.

[0034] Preferably, the fiber dispersion equipment includes 3 groups of vibration plates, each group of vibration plates contains 26 plates, the size of each vibration plate is 900 mm long, 50 mm wide, and 10 mm thick, the vibration plates are distributed with a torsion of 15°, the vibration frequency of each vibration plate is 70 to 80 times / min, and the vibration angle is 55 to 60°.

[0035] Preferably, the pre-dispersion time is 15 to 20 min, for example, 15 min, 16 min, 17 min, 18 min, 19 min or 20 min.

[0036] Preferably, the dewatering and meshing in step (2b) is carried out in an inclined mesh former.

[0037] Preferably, the step (2b) specifically comprises: diluting and removing impurities from the fiber suspension, and then sending the fiber suspension into an inclined wire former through a slurry pump for dehydration and web formation to form a wet-process xylitol cellulose fiber layer.

[0038] Preferably, the mass percentage of fiber in the fiber suspension obtained after dilution is 0.02-0.04%, for example, 0.02%, 0.022%, 0.024%, 0.026%, 0.028%, 0.03%, 0.032%, 0.034%, 0.036%, 0.038% or 0.04%, etc.

[0039] Preferably, the overlapping method in step (2c) comprises: first feeding the cotton yarn layer into the composite conveying curtain, and then using the pre-spinning water jet head between the inclined mesh former and the composite conveying curtain to composite the wet-process xylitol cellulose fiber layer and the cotton yarn layer by hydraulic action.

[0040] Preferably, the hydroentanglement in step (2c) is carried out on a twill hydroentanglement support curtain A of a hydroentanglement machine.

[0041] Preferably, the mesh number of the twill spunlace support mesh curtain A is 50-70 meshes, for example, 50 meshes, 55 meshes, 60 meshes, 65 meshes or 70 meshes.

[0042] Preferably, the number of water jetting passes in step (2c) is 3 to 4.

[0043] Preferably, the needle pressure of the hydroentanglement in step (2c) is 15 to 45 bar, for example, 15 bar, 20 bar, 25 bar, 30 bar, 35 bar, 40 bar or 45 bar.

[0044] As a preferred technical solution of the present invention, hydroentanglement is performed under the action of a needle pressure of 15 to 45 bar and a 50 to 70 mesh twill hydroentanglement support mesh curtain A, which can make the fibers of the wet-process xylitol cellulose fiber layer interweave and displace, and more evenly interweave into the grid holes of the cotton yarn layer, and after entanglement with the cotton yarn, they are compounded into one to form irregular micropores, thereby avoiding uneven displacement of fibers and improving the air permeability of the material.

[0045] Preferably, the overlapping method in step (2d) comprises: feeding the composite layer obtained after the hydroentanglement in step (2c) into the composite conveying curtain again, and then using the pre-hydroentanglement head between the inclined mesh former and the composite conveying curtain to composite the wet-process xylitol cellulose fiber layer and the composite layer by hydraulic action.

[0046] Preferably, step (2d) is carried out on a twill spunlace support net curtain B of a spunlace machine.

[0047] Preferably, the mesh number of the spunlace twill spunlace support mesh curtain B is 50-70 meshes, such as 50 meshes, 55 meshes, 60 meshes, 65 meshes or 70 meshes.

[0048] Preferably, the number of water jets in step (2d) is 4 to 6, such as 4, 5 and 6.

[0049] Preferably, the hydroentanglement in step (2d) is first carried out at a pressure of 15 to 20 bar (for example, 15 bar, 15.5 bar, 16 bar, 16.5 bar, 17 bar, 17.5 bar, 18 bar, 18.5 bar, 19 bar, 19.5 bar or 20 bar, etc.), then at a pressure of 30 to 32 bar (for example, 30 bar, 30.2 bar, 30.4 bar, 30.6 bar, 30.8 bar, 31 bar, 31.5 bar, 31.8 bar, 31.9 bar or 32 bar, etc.), and finally at a pressure of 35 to 50 bar (for example, 35 bar, 36 bar, 37 bar, 38 bar, 39 bar, 40 bar, 42 bar, 44 bar, 46 bar, 48 bar or 50 bar, etc.).

[0050] As a preferred technical solution of the present invention, in step (2d), the composite layer and the wet-process xylitol cellulose fiber layer are subjected to 4 to 6 hydroentanglements using a hydroentanglement process. The initial hydroentanglement head pressure is 15 to 20 bar and then gradually increased. The hydroentanglement is then performed at 30 to 32 bar. The low pressure can cause the wet-process xylitol cellulose fibers to be initially entangled with the fibers of the composite layer, and can effectively avoid large-distance displacement of the second layer of wet-process xylitol cellulose fibers. Then, a gradually increasing water pressure of 35 to 50 bar is used for high-pressure entanglement, so that the xylitol cellulose fibers of the three layers of materials and the xylitol cellulose fibers and the cotton yarn are fully embraced and entangled, thereby avoiding material delamination and chipping.

[0051] It should be noted that in the preparation method provided by the present invention, the circulating water used in the hydroentanglement process adopts the pressure difference PVDF membrane filtration technology for terminal filtration of the circulating water. The pore size of the PVDF membrane is 0.01-0.02μm, which can effectively intercept particulate matter larger than 0.02μm, and can effectively improve the problem of water quality deterioration caused by hydroentanglement of xylitol cellulose fibers, avoid the problem of abnormal water injection caused by clogging of the hydroentanglement needle holes, improve the appearance quality of the material, reduce the number of times the water injection plate is cleaned, and improve production efficiency.

[0052] In a third aspect, the present invention provides a cooling and soothing facial mask, wherein the cooling and soothing facial mask comprises the xylitol cellulose facial mask cloth as described in the first aspect.

[0053] Compared with the prior art, the present invention has the following beneficial effects:

[0054] The xylitol cellulose facial mask cloth provided by the present invention comprises a cotton yarn layer with a grid structure, and xylitol cellulose fiber layers are arranged on both side surfaces of the cotton yarn layer, and the fibers of the cotton yarn layer are interlaced and entangled with the fibers of the xylitol cellulose fiber layer; by matching cotton yarn and xylitol cellulose fibers, and specially limiting the structure of the cotton yarn layer, and limiting the fibers of the cotton yarn layer and the fibers of the xylitol cellulose fiber layer to be interlaced and entangled with each other, the obtained xylitol cellulose facial mask cloth has excellent air permeability, a cool feeling and a soothing effect, which is beneficial to promoting the cooling and fading of redness on the body surface, and at the same time has a higher liquid absorption rate, and can carry more facial mask essence per unit area. When used as a facial mask, it can prolong the skin-adhering time and exert a greater essence effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 A schematic diagram of the cross-sectional structure of the xylitol cellulose facial mask cloth provided by the present invention;

[0056] Figure 2 A schematic diagram of the top view of the cotton yarn layer in the xylitol cellulose facial mask cloth provided by the present invention;

[0057] Figure 3 This is an optical microscope image of the xylitol cellulose facial mask cloth provided in Example 1;

[0058] Figure 4 An optical microscope image of the xylitol cellulose facial mask cloth provided in Example 2;

[0059] Figure 5 An optical microscope image of the xylitol cellulose facial mask cloth provided in Example 3;

[0060] Among them, 1-cotton yarn layer, 2-1-first xylitol cellulose fiber layer, 2-2-second xylitol cellulose fiber layer. DETAILED DESCRIPTION

[0061] The technical solution of the present invention is further described below by specific implementation methods. It should be understood by those skilled in the art that the embodiments are only to help understand the present invention and should not be regarded as specific limitations of the present invention.

[0062] Unless otherwise specified, the raw materials involved in the following specific embodiments are all conventional materials in the art and can be purchased commercially.

[0063] Example 1

[0064] A xylitol cellulose facial mask cloth, with a gram weight of 50g / m 2 , thickness is 0.35mm, the cross-sectional structure diagram is as follows Figure 1 As shown, it includes a cotton yarn layer 1, a first xylitol cellulose fiber layer 2-1 and a second xylitol cellulose fiber layer 2-2;

[0065] The top view of the structure of the cotton yarn layer 1 is as follows: Figure 2 As shown, it has a grid structure, and the length × width of the grid is 1~2mm×1~2mm;

[0066] The mass percentage of the cotton yarn layer 1 in the mask cloth is 35%, and it is formed by crisscrossing 50-count cotton yarns;

[0067] The first xylitol cellulose fiber layer 2-1 and the second xylitol cellulose fiber layer 2-2 are respectively arranged on both sides of the cotton yarn layer 1, and the mass percentages of the first xylitol cellulose fiber layer 2-1 and the second xylitol cellulose fiber layer 2-2 in the mask cloth are 32.5% and 32.5% respectively, and both are composed of 1.0 dtex xylitol cellulose fibers;

[0068] The cotton yarn in the cotton yarn layer 1 and the xylitol cellulose fibers in the xylitol cellulose fiber layer 2-1 and the xylitol cellulose fiber layer 2-2 are intertwined and entangled with each other;

[0069] The preparation method of the xylitol cellulose facial mask cloth provided in this embodiment 1 comprises the following steps:

[0070] (1) overlapping the cotton yarns in a crisscross pattern to form a cotton yarn layer having a grid structure;

[0071] (2) putting the xylitol cellulose fibers into a fiber dispersion device containing water for pre-dispersion, wherein the fiber dispersion device is provided with three groups of vibration plate groups, each group of vibration plate groups comprises 26 vibration plates, each vibration plate has a length of 900 mm, a width of 50 mm, a thickness of 10 mm, and the vibration plates are distributed with a torsion of 15°, a vibration frequency of 75 times / min, a vibration angle of 60°, and a vibration time of 18 min for each barrel of fibers, to obtain a fiber suspension having a mass percentage of 0.4%;

[0072] (2) diluting and removing impurities from the fiber suspension and then sending it to an inclined mesh former through a slurry pump, and dehydrating and meshing it to form a wet-process xylitol cellulose fiber layer;

[0073] (3) feeding the cotton yarn layer into the composite conveying curtain, and superimposing the wet-process xylitol cellulose fiber layer with the cotton yarn layer under the action of hydraulic pressure through the pre-spinning water jet between the inclined mesh former and the composite conveying curtain, thereby forming a portion of fiber displacement and interlacing;

[0074] (4) introducing the two layers formed by overlapping and interlacing onto a 60-mesh high-breathable twill spunlace support mesh curtain, and subjecting the two layers to four spunlaces using a spunlace process, wherein the pressures of the first to fourth spunlace heads are 15 bar, 25 bar, 38 bar, and 38 bar, respectively, so that the fibers of the xylitol cellulose fiber layer are interlaced and displaced, enter the grid structure of the cotton yarn layer, and are entangled with the cotton yarn and composited into one, thereby obtaining a composite layer;

[0075] (5) passing the composite layer obtained in step (4) through a drying roller to remove moisture, and then feeding it into a composite conveying curtain again, and overlapping it with the wet-process xylitol cellulose fiber layer again, and forming a three-layer material with a certain composite strength under the action of water force;

[0076] (6) The three-layer material is introduced onto a 60-mesh high-breathable twill spunlace support mesh curtain, and the superimposed material is spunlace-treated in five passes by using a spunlace process. The pressure of the first spunlace head is 20 bar, the pressure of the second spunlace head is 31 bar, and the pressure of the third to fifth spunlace heads is 40 bar. This allows the xylitol cellulose fiber layer to be entangled with the composite layer and the cotton yarn to form a composite. The xylitol cellulose fibers enter the grid structure of the cotton yarn layer to form longitudinal and transverse fiber textures. Finally, the moisture is removed by a drying roller, and the xylitol cellulose mask cloth is obtained after drying and rolling.

[0077] Example 2

[0078] A xylitol cellulose facial mask cloth having a gram weight of 55 g / m 2 , with a thickness of 0.42 mm, and the same structure as in Example 1, including a cotton yarn layer having a grid structure and xylitol cellulose fiber layers respectively disposed on both sides of the cotton yarn layer, and the fibers in the cotton yarn layer and the fibers in the xylitol cellulose fiber layer are interlaced and entangled with each other;

[0079] The mass percentage of the cotton yarn layer in the mask cloth is 30%, and it is formed by 40-count cotton yarns overlapping in a crisscross pattern, and the length and width of the grid structure are 1-2 mm × 1-2 mm;

[0080] The mass percentages of the two layers of xylitol cellulose fiber in the mask cloth are 35% and 35% respectively, and both are composed of 1.1 dtex xylitol cellulose fibers;

[0081] The preparation method of the xylitol cellulose facial mask cloth provided in this embodiment 2 comprises the following steps:

[0082] (1) overlapping the cotton yarns in a crisscross pattern to form a cotton yarn layer having a grid structure;

[0083] (2) putting the xylitol cellulose fibers into a fiber dispersion device containing water for pre-dispersion, wherein the fiber dispersion device is provided with three groups of vibration plate groups, each group of vibration plate groups comprises 26 vibration plates, each vibration plate has a length of 900 mm, a width of 50 mm, a thickness of 10 mm, and the vibration plates are distributed with a torsion of 15°, a vibration frequency of 70 times / min, a vibration angle of 55°, and a vibration time of 20 min for each barrel of fibers, to obtain a fiber suspension having a mass percentage of 0.5%;

[0084] (2) diluting and removing impurities from the fiber suspension and then sending it to an inclined mesh former through a slurry pump, and dehydrating and meshing it to form a wet-process xylitol cellulose fiber layer;

[0085] (3) feeding the cotton yarn layer into the composite conveying curtain, and superimposing the wet-process xylitol cellulose fiber layer with the cotton yarn layer under the action of hydraulic pressure through the pre-spinning water jet between the inclined mesh former and the composite conveying curtain, thereby forming a portion of fiber displacement and interlacing;

[0086] (4) introducing the two layers formed by overlapping and interlacing onto a 50-mesh high-breathable twill spunlace support mesh curtain, and subjecting the two layers to four spunlaces using a spunlace process, wherein the pressures of the first to fourth spunlace heads are 15 bar, 25 bar, 38 bar, and 38 bar, respectively, so that the fibers of the xylitol cellulose fiber layer are interlaced and displaced, enter the grid structure of the cotton yarn layer, and are entangled with the cotton yarn and composited into one, thereby obtaining a composite layer;

[0087] (5) passing the composite layer obtained in step (4) through a drying roller to remove moisture, and then feeding it into a composite conveying curtain again, and overlapping it with the wet-process xylitol cellulose fiber layer again, and forming a three-layer material with a certain composite strength under the action of water force;

[0088] (6) The three-layer material is introduced onto a 50-mesh high-breathable twill spunlace support mesh curtain, and the superimposed material is spunlace-treated in six passes by using a spunlace process. The pressure of the first spunlace head is 20 bar, the pressure of the second spunlace head is 31 bar, and the pressure of the third to sixth spunlace heads is 45 bar. This allows the xylitol cellulose fiber layer to be entangled with the composite layer and the cotton yarn to form a composite. The xylitol cellulose fibers enter the grid structure of the cotton yarn layer to form longitudinal and transverse fiber textures. Finally, the moisture is removed by a drying roller, and the xylitol cellulose mask cloth is obtained after drying and rolling.

[0089] Example 3

[0090] A xylitol cellulose facial mask cloth having a gram weight of 60 g / m 2 , with a thickness of 0.48 mm, and the same structure as in Example 1, including a cotton yarn layer having a grid structure and xylitol cellulose fiber layers respectively disposed on both sides of the cotton yarn layer, and the fibers in the cotton yarn layer and the fibers in the xylitol cellulose fiber layer are interlaced and entangled with each other;

[0091] The mass percentage of the cotton yarn layer in the mask cloth is 44%, and it is formed by 60-count cotton yarns overlapping in a crisscross pattern, and the length and width of the grid structure are 1-2 mm × 1-2 mm;

[0092] The mass percentages of the two layers of xylitol cellulose fiber in the mask cloth are 28% and 28% respectively, and both are composed of 1.2dtex xylitol cellulose fibers;

[0093] The preparation method of the xylitol cellulose facial mask cloth provided in this embodiment 2 comprises the following steps:

[0094] (1) overlapping the cotton yarns in a crisscross pattern to form a cotton yarn layer having a grid structure;

[0095] (2) putting the xylitol cellulose fibers into a fiber dispersion device containing water for pre-dispersion, wherein the fiber dispersion device is provided with three groups of vibration plate groups, each group of vibration plate groups comprises 26 vibration plates, each vibration plate has a length of 900 mm, a width of 50 mm, a thickness of 10 mm, and the vibration plates are distributed with a torsion of 15°, a vibration frequency of 80 times / min, a vibration angle of 60°, and a vibration time of 15 min for each barrel of fibers, to obtain a fiber suspension having a mass percentage of 0.5%;

[0096] (2) diluting and removing impurities from the fiber suspension and then sending it to an inclined mesh former through a slurry pump, and dehydrating and meshing it to form a wet-process xylitol cellulose fiber layer;

[0097] (3) feeding the cotton yarn layer into the composite conveying curtain, and superimposing the wet fiber layer with the cotton yarn layer under the action of hydraulic pressure through the pre-spinning water jet between the inclined mesh former and the composite conveying curtain, thereby forming a portion of fiber displacement and interlacing;

[0098] (4) introducing the two layers formed by overlapping and interlacing onto a 70-mesh high-breathable twill spunlace support mesh curtain, and subjecting the two layers to four spunlaces using a spunlace process, wherein the pressures of the first to fourth spunlace heads are 15 bar, 28 bar, 40 bar, and 40 bar, respectively, so that the fibers of the xylitol cellulose fiber layer are interlaced and displaced, enter the grid structure of the cotton yarn layer, and are entangled with the cotton yarn and composited into one, thereby obtaining a composite layer;

[0099] (5) passing the composite layer obtained in step (4) through a drying roller to remove moisture, and then feeding it into a composite conveying curtain again, and overlapping it with the wet-process xylitol cellulose fiber layer again, and forming a three-layer material with a certain composite strength under the action of water force;

[0100] (6) The three-layer material is introduced onto a 70-mesh high-breathable twill spunlace support mesh curtain, and the superimposed material is spunlace-treated for five times using a spunlace process, wherein the pressure of the first spunlace head is 15 bar, the pressure of the second spunlace head is 30 bar, and the pressure of the third to fifth spunlace heads is 45 bar. This allows the xylitol cellulose fiber layer to be entangled with the composite layer and the cotton yarn to form a composite, and allows the xylitol cellulose fiber to enter the grid structure of the cotton yarn layer to form longitudinal and transverse fiber textures. Finally, the water is removed by a drying roller, and the xylitol cellulose mask cloth is obtained after drying and rolling.

[0101] Example 4

[0102] A xylitol cellulose facial mask cloth, which differs from Example 1 in that the weight is 65 g / m 2 , thickness is 0.52 mm, and other materials, structures and preparation methods are the same as those in Example 1.

[0103] Example 5

[0104] A xylitol cellulose facial mask cloth, which differs from Example 1 in that the weight is 70 g / m 2 , thickness is 0.61 mm, and other materials, structures and preparation methods are the same as those in Example 1.

[0105] Example 6

[0106] A xylitol cellulose facial mask cloth, which differs from Example 1 in that the mass percentage of the cotton yarn layer 1 in the facial mask cloth is 20%, the mass percentages of the two layers of xylitol cellulose fiber layers in the facial mask cloth are 40% and 40% respectively, and other substances, structures and preparation methods are the same as those in Example 1.

[0107] Example 7

[0108] A xylitol cellulose facial mask cloth, which differs from Example 1 in that the mass percentage of the cotton yarn layer 1 in the facial mask cloth is 90%, the mass percentages of the two layers of xylitol cellulose fiber layers in the facial mask cloth are 5% and 5% respectively, and other substances, structures and preparation methods are the same as those in Example 1.

[0109] Embodiments 8 to 9

[0110] A xylitol cellulose facial mask cloth, which differs from Example 1 in that the fineness of the xylitol cellulose fiber is 0.5 dtex (Example 8) and 1.5 dtex (Example 9), and other substances, structures and preparation methods are the same as those in Example 1.

[0111] Comparative Example 1

[0112] A facial mask cloth, which differs from Example 1 in that silk with a fineness of 1.0 dtex is used to replace xylitol cellulose fiber, and other materials, structures and preparation methods are the same as those in Example 1.

[0113] Performance Test:

[0114] (1) Appearance: The xylitol cellulose facial mask cloths provided in Examples 1 to 3 were observed under an optical microscope at a magnification of 40 times. The optical microscope images of the xylitol cellulose facial mask cloths provided in Examples 1 to 3 are as follows: Figures 1 to 3 As shown;

[0115] from Figures 1 to 3It can be clearly seen that due to the penetration of the water needle on the non-woven fabric, the originally square holes have a certain amount of slippage, but the amount of slippage is very small and has little effect on the appearance of the product.

[0116] (2) Dry breaking strength and dry breaking elongation: Tested in accordance with the standard “FZ / T 60005-1991 Determination of breaking strength and breaking elongation of nonwoven fabrics”.

[0117] (3) Liquid absorption rate: Tested in accordance with the standard “GB / T 24218.6-2010 Textiles - Test methods for nonwoven fabrics - Part 6: Determination of absorbency”.

[0118] (4) Air permeability: Tested in accordance with the standard "GB / T 12704.1-2009 Textile fabrics - Test method for water vapor permeability - Part 1 - Moisture absorption method".

[0119] (5) Cool feeling: Tested in accordance with the standard “GB / T 35263-2017 Testing and evaluation of instantaneous cool feeling of textiles upon contact”.

[0120] The mask cloths provided in Examples 1 to 9 and Comparative Example 1 were tested according to the above test method, and the test results are shown in Table 1:

[0121] Table 1

[0122]

[0123] From the data in Table 1, we can see that:

[0124] The xylitol cellulose facial mask cloths provided in Examples 1 to 9 have high liquid absorption rate, high dry breaking strength, excellent air permeability, cooling and soothing effects, while the facial mask cloth provided in Comparative 1 has almost no cooling effect.

[0125] The applicant declares that the present invention illustrates a xylitol cellulose facial mask cloth and its preparation method and application through the above-mentioned embodiments, but the present invention is not limited to the above-mentioned process steps, that is, it does not mean that the present invention must rely on the above-mentioned process steps to be implemented. Those skilled in the art should understand that any improvement of the present invention, equivalent replacement of the raw materials selected by the present invention, addition of auxiliary components, selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.

Claims

1. A xylitol cellulose facial mask cloth, characterized in that: The xylitol cellulose facial mask cloth comprises a cotton yarn layer having a grid structure; Xylitol cellulose fiber layers are arranged on both side surfaces of the cotton yarn layer, and the fibers of the cotton yarn layer and the fibers of the xylitol cellulose fiber layer are interlaced and entangled with each other.

2. The xylitol cellulose facial mask cloth according to claim 1, characterized in that: The weight of the xylitol cellulose mask cloth is 35 to 100 g / m 2 ; Preferably, the xylitol cellulose facial mask cloth is prepared by a wet-laid hydroentanglement process.

3. The xylitol cellulose facial mask cloth according to claim 1 or 2, characterized in that: The mass percentage of the cotton yarn layer in the xylitol cellulose mask cloth is 28-80%; Preferably, the length×width of the grid structure in the cotton yarn layer is 1-2 mm×1-2 mm; Preferably, the cotton yarn layer comprises cotton yarn, and the yarn count of the cotton yarn is 40-60.

4. The xylitol cellulose facial mask cloth according to claim 1 or 2, characterized in that: The mass percentage of the xylitol cellulose fiber layer in the xylitol cellulose facial mask cloth is 20 to 72%; Preferably, the xylitol cellulose fiber layer comprises xylitol cellulose fibers and other fibers; Preferably, the fineness of the xylitol cellulose fiber is 0.8 to 1.2 dtex; Preferably, the mass percentage of xylitol cellulose fibers in the xylitol cellulose layer is ≥40%; Preferably, the other fibers include any one of mixed viscose fibers, lyocell fibers or modal fibers, or a combination of at least two thereof.

5. A method for preparing the xylitol cellulose facial mask cloth according to any one of claims 1 to 4, characterized in that: The preparation method comprises: forming xylitol cellulose fiber layers on both side surfaces of a cotton yarn layer having a grid structure to obtain the xylitol cellulose facial mask cloth.

6. The preparation method according to claim 5, characterized in that: The preparation method specifically comprises the following steps: (1) overlapping the fibers of the cotton yarn layer in a crisscross pattern to form a cotton yarn layer having a grid structure; (2) A wet-laid hydroentanglement process is used to form xylitol cellulose fiber layers on both sides of the cotton yarn layer, and the xylitol cellulose facial mask cloth is obtained after drying.

7. The preparation method according to claim 6, characterized in that: The wet-laid spunlacing process in step (2) specifically comprises the following steps: (2a) providing a fiber suspension containing fibers forming the xylitol cellulose fiber layer; (2b) dehydrating the fiber suspension to form a web to obtain a wet-process xylitol cellulose fiber layer; (2c) laminating the wet-process xylitol cellulose fiber layer and one side surface of the cotton yarn layer, and subjecting the layer to hydroentanglement to obtain a composite layer; (2d) The wet-process xylitol cellulose fiber layer is overlapped with the surface of the composite layer on the side away from the xylitol cellulose fiber layer, and then subjected to water entanglement and drying to obtain the xylitol cellulose facial mask cloth.

8. The preparation method according to claim 7, characterized in that: The mass percentage of fibers in the fiber suspension of step (2a) is 0.3-0.5%; Preferably, the dehydration and meshing in step (2b) is carried out in an inclined mesh former; Preferably, the lamination method in step (2c) comprises: first feeding the cotton yarn layer into the composite conveying curtain, and then using the pre-spinning water jet head between the inclined mesh former and the composite conveying curtain to composite the wet-process xylitol cellulose fiber layer and the cotton yarn layer by hydraulic action; Preferably, the hydroentanglement in step (2c) is performed on a twill hydroentanglement support screen A of a hydroentanglement machine; Preferably, the mesh number of the twill spunlace support net curtain A is 50 to 70 meshes; Preferably, the number of water jetting passes in step (2c) is 3 to 4; Preferably, the needle pressure of the water puncture in step (2c) is 15 to 45 bar.

9. The preparation method according to claim 7 or 8, characterized in that: The lamination method in step (2d) comprises: feeding the composite layer obtained in step (2c) into the composite conveying curtain again, and using the pre-spinning water jet head between the inclined mesh former and the composite conveying curtain to composite the wet-process xylitol cellulose fiber layer and the composite layer by hydraulic action; Preferably, the hydroentanglement in step (2d) is carried out on a hydroentanglement twill hydroentanglement support net curtain B of a hydroentanglement machine; Preferably, the mesh number of the spunlace twill spunlace support mesh curtain B is 50 to 70 meshes; Preferably, the number of water jetting passes in step (2d) is 4 to 6; Preferably, the hydroentanglement in step (2d) is first carried out at a pressure of 15 to 20 bar, then at a pressure of 30 to 32 bar, and finally at a pressure of 35 to 50 bar.

10. A cooling soothing facial mask, characterized in that: The cooling and soothing facial mask comprises the xylitol cellulose facial mask cloth as claimed in any one of claims 1 to 4.

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