CN111850817A - A kind of microporous facial mask spunlace material and preparation method thereof - Google Patents

Abstract

The invention discloses a microporous mask spunlace material and a preparation method thereof, wherein the microporous mask spunlace material comprises a spunlace cloth area (1), a plurality of oval concave holes (2) are formed in the spunlace cloth area (1), the oval concave holes (2) are arranged in rows on the cloth area (1), and the distance between any two adjacent rows is equal; the oval concave holes (2) in adjacent rows are arranged in a staggered manner, and the central points of the oval concave holes (2) are positioned on the perpendicular bisector of the central connecting line of two adjacent oval concave holes (2) in adjacent rows; and the distance between two adjacent oval concave holes (2) in the same row is equal. The invention also provides a preparation method of the microporous mask spunlace material. The microporous facial mask spunlace material prepared by the method has multiple performances of being light, thin, soft and close to the skin, high in uniformity, high in strength, not prone to deformation, high in transparency and the like, and when the microporous facial mask spunlace material is wetted and close to the skin, eyes can see the skin below the facial mask clearly through the facial mask.

Description

A kind of microporous facial mask spunlace material and preparation method thereof

technical field

The invention relates to a microporous facial mask spunlace material and a preparation method thereof, belonging to the field of spunlace non-woven fabrics.

Background technique

Masks are a common product in the field of beauty and skin care, and there are many types. At present, more than 70% of masks use non-woven fabrics as carriers to carry essences to achieve various beauty and skin care functions. As a beauty and skin care product, in addition to achieving the effect of beauty and skin care, the comfortable experience of consumers is also very important. The comfort of the mask is mainly reflected in the air permeability, moisture permeability, soft skin and not easy to deform, so the mask base fabric must have good air permeability, moisture permeability and soft performance. When using the mask, in order to make the essence of the mask better absorbed and achieve the best skin care effect, it generally takes 15-25 minutes for the mask to stick to the skin. During such a long period of time, if the air permeability is not good, Human skin will feel stuffy, uncomfortable, and even itchy, which will seriously affect the experience of use. The human face is an irregular concave-convex surface. In order to make the mask stick to each part of the face and make the skin absorb nutrients evenly, it is required that the mask base cloth has enough softness and conformability and is not easy to deform. It does not interfere with normal activities when applied. At the same time, in order to make the mask more beautiful when it is attached to the skin, it can improve the embarrassment that the opacity of traditional masks is considered to be "grimace", and does not affect the use in public places, and can improve the transparency of the mask to achieve an invisible effect. Since the cosmetic effect of the mask is achieved by the nutrient solution carried by the base cloth, the base cloth of the mask is used as the carrier of the nutrient solution, and the amount of the nutrient solution carried directly affects the use effect of the mask. The liquid holding capacity of the base cloth is too small, and the cosmetic effect is not obvious. At the same time, due to the absorption of the skin and its own volatilization, the mask quickly dries out, causing the mask to absorb moisture from the skin, which cannot be used for maintenance. Therefore, the base cloth of the mask needs to have Good fluid holding capacity. In order to ensure that the essence is evenly distributed on the mask material, the uniformity of the base fabric must be good and not easily deformed. All in all, with the rapid development of the facial mask industry, people's requirements for facial masks are getting higher and higher, which can be basically summarized as comfortable, thin, soft, skin-friendly, transparent and invisible, and uniform and non-deformable.

SUMMARY OF THE INVENTION

In order to solve the above technical problems, the purpose of the present invention is to provide a microporous facial mask spunlace material and a preparation method thereof.

The present invention is achieved through the following technical solutions:

A microporous facial mask spunlace material, comprising a spunlace cloth area, a plurality of oval concave holes are opened on the spunlace cloth area, and the oval concave holes are arranged in a row on the cloth area and any two adjacent rows The distances between them are equal; the elliptical concave holes in adjacent rows are staggered, and the center point of the elliptical concave holes is on the vertical bisector of the line connecting the centers of two adjacent elliptical concave holes in an adjacent row. ; And the distance between two adjacent oval concave holes in the same row is equal; Taking the center line of the oval concave holes in the same row as a horizontal line, the line where the focus of the oval concave holes in this row is located and the horizontal line are formed. The included angle is 45° or 135°; and the distance between any two adjacent oval concave holes in the same row is equal.

Further, the distance between any two adjacent oval concave holes in the same row is equal to the distance between any two adjacent oval concave holes in the same column; the focus of the oval concave holes in any two adjacent rows The lines are perpendicular to each other, and the lines where the focal points of the elliptical concave holes in the same row are located are parallel to each other.

Further, the distance between two adjacent oval concave holes in the same row is 0.3-0.4 mm.

Further, the distance between two adjacent oval concave holes in the same row is 0.3-0.4 mm.

Further, the long axis of the oval concave hole is 0.2-0.4 mm, the short axis is 0.1-0.2 mm, and the mesh number of the oval concave hole is 58-62 mesh.

Further, the gram weight of the microporous facial mask spunlace material is 28-35g/㎡, the longitudinal breaking strength is greater than 45N/(5cm×10cm), the transverse breaking strength is greater than 30N/(5cm×10cm), and the longitudinal breaking elongation is is 25-35%, and the transverse elongation at break is 35-45%.

A preparation method of the above-mentioned microporous facial mask spunlace material, comprising the following steps:

1) Feeding, opening and mixing the fibers;

2) Carding into a net, compound laying;

3) Copper mesh spunlace;

4) Drying, cold rolling, winding, slitting and packaging.

Further, in step 1), the fibers are lyocell fibers, and the fineness of the lyocell fibers is 0.9-1.7D; in step 2), the composite laying is four-layer cross-laid and two Layer straight lay net composite.

Further, wherein in step 3), the pressure of the copper mesh spunlace is 30-130bar; the copper mesh is a copper mesh drum woven by copper wire, the drum mesh number is 60 mesh, and the copper wire diameter is 0.1± 0.02mm; in step 4), the upper roller of the pressing roller used in the cold rolling is a nylon roller, and the lower roller is a steel rod.

Further, after step 2) and before step 3), the steps of pre-stab and back spunlace are also included.

The present invention can achieve the following technical effects:

The microporous facial mask spunlace material prepared by the method of the invention adopts lyocell fibers with a fineness of 0.9-1.7D to make the product softer and more transparent; Further improve the uniformity of the product, and at the same time make the product have a more suitable vertical and horizontal strength ratio to meet the needs of the mask substrate; in the spunlace stage, a 60-mesh copper mesh drum is used to make holes to make the mesh more clear and transparent, improving Breathability and transparency, while ensuring the product is strong enough. This is because the hardness of the copper mesh drum is between the polyester mesh and the steel mesh. The polyester mesh is clearly perforated but the entanglement is not good. The strength of the product is not high. The appropriate hardness of the copper mesh is more suitable for 60 mesh perforation, not only the mesh is clear, but also the strength of the product is guaranteed; the cold rolling of the upper roller is made of nylon and the lower roller is steel, which controls the thickness of the product and makes the cloth face becomes thinner. As mentioned above, the microporous facial mask spunlace material prepared by the preparation method of the present invention has the effects of high transparency, soft skin-adhering, air permeability, lightness and thinness, uniform cloth surface, not easy to deform, and good moisturizing performance.

Description of drawings

1 is a perspective view of a microporous facial mask spunlace material according to an embodiment of the present invention;

2 is a schematic structural diagram of a microporous facial mask spunlace material according to an embodiment of the present invention;

FIG. 3 is a flow chart of the preparation method of the microporous facial mask spunlace material according to the embodiment of the present invention.

Detailed ways

The present invention will be further described below with reference to specific embodiments and accompanying drawings, so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

Unless otherwise specified, the following materials or reagents are commercially available.

As shown in Figures 1-2, the present invention provides a microporous facial mask spunlace material, including a spunlace cloth area 1, and the spunlace cloth area 1 is provided with a plurality of elliptical concave holes 2, but not limited to the above shape, which is designed to increase breathability and transparency. The oval concave holes 2 are arranged in rows on the layout area 1 and the distance between any two adjacent rows is equal; the oval concave holes 2 in adjacent rows are staggered, and the The center point is on the vertical bisector of the line connecting the centers of two adjacent oval concave holes 2 in an adjacent row; and the distance between two adjacent oval concave holes 2 in the same row is equal; The center connecting line of the oval-shaped concave holes 2 is a horizontal line, and the angle formed by the line where the focal point of the oval-shaped concave holes 2 in this row is located and the horizontal line is 45° or 135°; The distance is equal and equal to the distance between any two adjacent oval concave holes 2 in the same row. The lines where the focal points of the elliptical concave holes 2 in any two adjacent rows are located are perpendicular to each other, and the lines where the focal points of the elliptical concave holes 2 in the same row are parallel to each other. The above arrangement of micropores and the setting angle of the mesh are to make the micropores of the mask base cloth more evenly distributed, so as to improve the uniformity of the mask and ensure that the mask essence is evenly distributed. The distance between two adjacent oval concave holes 2 in the same row is 0.3-0.4 mm. The distance between two adjacent oval concave holes 2 in the same row is 0.3-0.4 mm. This is because the appropriate spacing of the mesh holes can ensure the clarity of the micro-holes on the cloth surface. Less than 0.3mm and greater than 0.4mm will reduce the clarity of the micro-holes, which not only affects the appearance but also affects the uniformity. The long axis of the oval concave hole 2 is 0.2-0.4mm, the short axis is 0.1-0.2mm, and the mesh number of the oval concave hole 2 is 58-62 mesh. Liquid-liquid capacity and breathability. The microporous facial mask spunlace material has a gram weight of 28-35g/㎡, a longitudinal breaking strength of 45N/(5cm×10cm), a transverse breaking strength of greater than 30N/(5cm×10cm), and a longitudinal elongation at break of 25-35 %, the transverse elongation at break is 35-45%.

As shown in Figure 3, the present invention also provides a preparation method of the above-mentioned microporous facial mask spunlace material, comprising the following steps:

1) feeding, opening and mixing the fibers; the fibers are lyocell fibers, and the fineness of the lyocell fibers is 0.9-1.7D;

2) Carding into a net, composite laying; the composite laying is a composite of four layers of cross laying and two layers of straight laying;

3) Copper mesh spunlace; the pressure of the copper mesh spunlace is 30-130 bar; the copper mesh is a copper mesh drum woven by copper wires, the number of the drum mesh is 60 meshes, and the diameter of the copper wire is 0.1±0.02mm ;

4) drying, cold rolling, winding, slitting and packaging; wherein the upper roller of the pressing roller used in the cold rolling is a nylon roller, and the lower roller is a steel rod.

Wherein, after step 2) and before step 3), it also includes the steps of pre-stab and back spunlace.

Further description will be given below in conjunction with specific embodiments.

Example 1

As shown in Figure 3, the present embodiment provides a preparation method of a microporous facial mask spunlace material, comprising the following steps:

1) Selection of raw materials: 0.9D lyocell fiber is selected, and the mass percentage is 50%; 1.5D lyocell fiber is selected, and the mass percentage is 50%.

2) Feeding, opening, mixing, and carding into a web: the prepared fiber raw materials are fed into the opening machine in proportion to open, and then transported to the cotton blending bin for uniform mixing, and the mixed fibers are transported to the card clothing Carding was carried out on a high density cylinder card with a density of 420 teeth/square inch.

3) Composite web laying: the carded fiber web enters the cross-lapper for 4-layer web laying, and then the four-layer cross-laid fiber web is drawn 3.2 times in the drafting machine, and the gram weight is 16- 20g/m2 cross-laid net, and then mixed with the straight carded net with a gram weight of 12-16g/m2 combed by another carding machine.

4) Spunlace: The composite fiber web is pre-stabbed with a water pressure of about 30bar, and then the back of the first drum is spunlaced (steel mesh or polyester mesh spunlace), and the second copper mesh drum is 60 mesh. Spunlace micro perforation. The first drum spunlace is two spunlace, the spunlace pressure is 50bar and 70bar respectively. The number of 60-mesh micro-perforation spunlace in the second copper mesh drum is 3, and the spunlace pressure is 70 and 70 bar respectively.

5) Drying, cold rolling, winding, slitting and packaging: after spunlacing, the spunlace cloth is subjected to hot air penetration drying, and the drying temperature is 90°C. After drying, the spunlace cloth is cold-rolled and thinned by using a pressing roll with a nylon roll as the upper roller and a steel bar as the lower roller, and the pressure is 4 bar. After calendering, the spunlace cloth was coiled at a coiling speed of 55 m/min. Finally, the rolled spunlace cloth is cut and packaged as required.

Example 2

As shown in Figure 3, the present embodiment provides a preparation method of a microporous facial mask spunlace material, comprising the following steps:

1) Selection of raw materials: 1.0D lyocell fiber is selected, and the mass percentage is 100%.

2) Feeding, opening and mixing: The prepared fiber raw materials are fed into the opening machine according to the proportion for opening, and then conveyed to the cotton mixing bin for uniform mixing, and the mixed fibers are conveyed to the card clothing with a density of 420 teeth. / square inch high-density cylinder carding machine for carding into the web.

3) Cross-lapping, high drafting, cross-lapping and straight-carding compounding: the carded fiber web enters the cross-lapper for 4-layer laying, and then the four-layer cross-lapped fiber web is carried out in the drafting machine for 3.2 Double drafting, after drafting, a cross-laying net with a gram weight of 14-17g/㎡ is formed, which is then mixed with a straight carded net with a gram weight of 11-14g/㎡ combed out by another carding machine.

4) Spunlace: The composite fiber web is pre-stabbed with a water pressure below 30 bar, and then the back of the first drum is spunlace reinforced, and the second copper mesh drum is 60 mesh spunlace micro-perforation. The first drum spunlace is two spunlace (steel mesh or polyester mesh spunlace), and the spunlace pressure is 50bar and 70bar respectively. The number of 60 mesh micro-perforation spunlace channels in the second copper mesh drum is 3, and the spunlace pressures are 70 and 65 bar respectively.

5) Cold rolling, drying, winding, slitting and packaging: after spunlacing, the spunlace cloth is subjected to hot air penetration drying, and the drying temperature is 85°C. After drying, the spunlace cloth is cold-rolled and thinned by using a pressing roller with a nylon roll as the upper roller and a steel bar as the lower roller, and the pressure is 3.5 bar. After pressing, the spunlace cloth was coiled at a coiling speed of 54 m/min. Finally, the rolled spunlace cloth is cut and packaged as required.

Example 3

The product performance test of the microporous facial mask spunlace material prepared in the above example is carried out below. The test process and results are as follows:

(1) Quantitative gram weight test: The test instrument is an electronic balance, and the test method is GB/T24218.1-2009.

(2) Thickness test: The test instrument is YG141 fabric thickness tester, and the test method is GB/T24218.2-2009.

(3) Strength and elongation test: The test instrument is an electronic strength machine, and the test method is GB/T24218.3-2010.

4) Air permeability test: the test instrument is a gas permeability tester, the test method is GB/T24218.3-2010, the test conditions are that the test area is 20cm ² , and the test pressure difference is 100pa.

(5) Liquid carrying amount: According to the standard GBT 24218.6-2010 Test Methods for Textile Nonwovens Part 6: Determination of Absorbency, measure the liquid carrying rate of the sample.

Table 1: Various performance tests of the microporous facial mask spunlace materials prepared in Examples 1-2

Test items unit Example 1 Example 2 Gram weight g/m² 32.1 28.0 unevenness % 2.3 1.7 thickness mm 0.30 0.25 Longitudinal breaking strength N/5×10cm 60.5 56.3 Transverse breaking strength N/5×10cm 43.6 39.8 Longitudinal breaking elongation % 29.8 27.6 Transverse breaking strength elongation % 38.5 37.4 Air permeability mm/s 1887 2456 suction volume g/g 12.45 12.21

According to the product performance test results in Table 1, the microporous facial mask spunlace material product prepared in Example 1-2 of the present invention has lower gram weight and thickness, plus the use of fine denier lyocell fibers and the use of 60 mesh copper The spunlace mesh of the mesh drum has the characteristics of clear mesh, and the comprehensive effect makes the microporous mask spunlace material product have high permeability, and at the same time make it softer and sticker to the skin. The use of a high-density cylinder card clothing carding machine and a composite process of four layers of cross high-draft laying and straight laying makes the unevenness of the microporous facial mask spunlace material product very low, indicating that the microporous facial mask spunlace material product is It has a high degree of uniformity, so that the nutrient solution can be evenly distributed when the mask base fabric is made into a mask product. The microporous facial mask spunlace material product has high vertical and horizontal strength and low elongation, which not only ensures that the base fabric resists tensile force during cutting and is easy to be cut and processed, but also the finished mask product is not easy to be pulled when used. Or serious deformation affects the use effect. The mask material has a number of tiny concave holes, which increase the space for nutrient solution and meet the demand for the liquid volume of the mask base cloth. It does not feel stuffy or even itchy when used for a long time, which greatly improves the comfort of use.

The microporous mask material prepared by the invention has many excellent properties such as lightness, softness, high uniformity, high strength, non-deformation, air permeability and comfort, transparency and invisibility, etc. The wetted microporous mask spunlace material When sticking to the skin, the eyes can directly see the skin under the mask through the mask. This material is very suitable as a mask substrate.

The above-mentioned embodiments are merely examples for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or transformations made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention. The protection scope of the present invention is subject to the claims.

Claims (10)

1. a microporous facial mask spunlace material, is characterized in that, comprises spunlace cloth area (1), is provided with a plurality of elliptical concave holes (2) on described spunlace cloth area (1), described ellipse The concave holes (2) are arranged in rows on the layout area (1) and the distance between any two adjacent rows is equal; the oval concave holes (2) in adjacent rows are staggered, and the oval concave holes The center point of (2) is on the vertical bisector of the line connecting the centers of two adjacent oval concave holes (2) in an adjacent row; and the distance between any two adjacent oval concave holes (2) in the same row equal; take the line connecting the centers of the oval concave holes (2) in the same row as the horizontal line, and the angle formed by the line where the focal point of the oval concave holes (2) in the row and the horizontal line is 45° or 135°; and the same column The distance between any two adjacent oval concave holes (2) is equal. 2. The microporous facial mask spunlace material according to claim 1, wherein the distance between any two adjacent oval concave holes (2) in the same row is equal to any two adjacent oval concave holes in the same row (2) the distance between; the lines where the focal points of the elliptical concave holes (2) in any two adjacent rows are perpendicular to each other, and the lines where the focal points of the elliptical concave holes (2) in the same row are parallel to each other. 3. The microporous facial mask spunlace material according to claim 2, wherein the distance between two adjacent elliptical concave holes (2) in the same row is 0.3-0.4 mm. 4. The microporous facial mask spunlace material according to claim 3, characterized in that, the distance between two adjacent elliptical concave holes (2) in the same row is 0.3-0.4 mm. 5. The microporous facial mask spunlace material according to claim 1, wherein the long axis of the elliptical concave hole (2) is 0.2-0.4 mm, the short axis is 0.1-0.2 mm, and the elliptical The mesh number of the concave hole (2) is 58-62 mesh. 6. The microporous facial mask spunlace material according to any one of claims 1 to 5, wherein the microporous facial mask spunlace material has a gram weight of 28-35 g/m2 and a longitudinal breaking strength greater than 45N/(5cm ×10cm), the transverse breaking strength is greater than 30N/(5cm×10cm); the longitudinal breaking elongation is 25-35%, and the transverse breaking elongation is 35-45%. 7. the preparation method of the microporous facial mask spunlace material described in any one of claim 1-6, is characterized in that, comprises the following steps: 1) Feeding, opening and mixing the fibers; 2) Carding into a net, compound laying; 3) Copper mesh spunlace; 4) Drying, cold rolling, winding, slitting and packaging. 8. The preparation method of claim 7, wherein in step 1), the fibers are lyocell fibers, and the fineness of the lyocell fibers is 0.9-1.7D; in step 2), the fibers are lyocell fibers. The composite laying net is a composite of four layers of cross laying nets and two layers of straight laying nets. 9. preparation method as claimed in claim 7 is characterized in that, in step 3), the pressure of described copper mesh spunlace is 30-130bar; Described copper mesh is the copper mesh drum of copper wire weaving, drum The mesh number is 58-62 mesh, and the diameter of the copper wire is 0.1±0.02 mm; in step 4), the upper roller of the pressing roller used in the cold rolling is a nylon roller, and the lower roller is a steel rod. 10. The preparation method according to claim 7, characterized in that, after step 2) and before step 3), it further comprises the steps of pre-stab and back spunlace.

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