CN104818578B - A kind of high-elastic antibacterial non-woven of honeycomb structure and preparation method thereof - Google Patents

Abstract

A high-elastic antibacterial nonwoven fabric with a honeycomb structure and a preparation method thereof, comprising a plurality of composite fiber webs stacked successively in a reciprocating Z-shape, the interior of the composite fiber webs is sprayed with an antibacterial agent, and the composite fiber webs are connected end to end in sequence. Heat-melt fibers are sandwiched between adjacent composite fiber webs. During manufacture, the upper layer fiber web, the elastic fiber web and the lower layer fiber web are prepared respectively through the preparation before web forming and the mechanical carding web forming process, and then these three layers of fiber webs are superimposed into a composite fiber web through the fiber web compounding process, and the upper layer fiber web is The net and the lower fiber web are a mixture of low-melting point polyester staple fibers and three-dimensionally crimped hollow polyester staple fibers, and the elastic web is a mixture of low-melting point polyester staple fibers and elastic polyester staple fibers. After spraying the antibacterial agent on the composite fiber web, vertical web laying is carried out through the vertical web laying process, and hot-melt fibers are sprinkled between the composite web and the composite web, and then the honeycomb structure is obtained through drying, trimming, and winding processes high elastic antibacterial nonwovens.

Description

A kind of highly elastic antibacterial nonwoven fabric with honeycomb structure and preparation method thereof

technical field

The invention relates to a highly elastic and antibacterial nonwoven fabric with a honeycomb structure and a manufacturing method thereof, belonging to the field of nonwoven fabrics.

Background technique

Fluffy materials are a necessity of human social life and are closely related to people's lives. For example, sound insulation materials, sofas, mattresses, boss chairs, sports equipment, clothing and other fields need to use fluffy materials. According to the preparation method of fluffy materials, there are usually four categories: sponge, warp-knitted spacer fabric, three-dimensional elastic woven fabric, and non-woven fabric. Sponge is a kind of porous material, which is mainly made of soft foam in polyurethane foam. Because of its low price, light weight, soft and plump hand feeling and good resilience, sponge occupies a dominant position in the market. However, sponge production has fatal shortcomings such as pollution and non-recyclable waste, and it is easy to turn yellow, and has poor air permeability and comfort. At present, Australia and some European developed countries have taken corresponding measures to curb the application of sponges due to the serious environmental pollution and resource waste of sponges. As people pay more and more attention to the concept of low-carbon environmental protection, the development of new fluffy materials with excellent performance has gradually become the focus of scholars at home and abroad, and then three-dimensional warp-knitted spacer fabrics appeared. Three-dimensional warp-knitted spacer fabric refers to a Raschel warp-knitted three-dimensional knitted fabric that is connected by two fabric surfaces with spacer yarns. The development of warp-knitted spacer fabrics began in the mid-1980s, and the research content has been quite extensive, including materials. The structure, performance, production process, application, etc., such as mattresses made of spacer fabrics, can prevent patients from feeling sore due to long-term bed rest. Its notable advantages are: the production process is environmentally friendly and pollution-free, recyclable and recyclable, good fastness, hot and humid comfort, warmth retention and air permeability, soft and elastic, overcoming the shortcomings of sponges, but due to its structural characteristics, it is resistant to Compression and resilience are poor, and the scope of application is currently limited, especially products that cannot meet the requirements of high compression elasticity. Three-dimensional elastic woven fabric is a new type of fluffy material developed on the basis of warp-knitted spacer fabric. It has good resilience in the thickness direction, stable structure, changeable shape, good integrity, and good permeability. Humidity, breathability and other properties. However, its weaving structure is complex and its manufacturing cost is high, making it difficult to popularize and apply. With the development of non-woven fabric technology, the arrangement direction of the fibers is changed, and the usual non-woven fabrics with horizontally arranged fibers are changed to vertical arrangements to obtain non-woven fabrics with a honeycomb structure. Compared with sponges, they have non-yellowing, It has the characteristics of good air permeability and stable size. Its waste can be recycled and used to adapt to the consumption concept of an environmentally friendly and low-carbon society. The unique upright structure enables the fiber aggregate to obtain great elasticity and compression resistance. Compared with three-dimensional elastic woven fabrics and warp-knitted spacer fabrics, the process is simple, the adaptability to raw materials is strong, the source of raw materials is wide, the production cost is lower, and the product application field is wider. However, delamination is easy to occur between the fiber web and the fiber web of the existing nonwoven fabric with honeycomb structure, which affects the elasticity of the product; at the same time, there is a lack of products with both high elasticity and antibacterial effect, which affects the nonwoven fabric with honeycomb structure. The scope of application is expanded.

Contents of the invention

The purpose of the present invention is to overcome the technical problems in the prior art that cannot satisfy high elasticity, low cost, simple structure and environmental protection at the same time, and provide a kind of high elasticity, low cost, simple structure, environmental protection and antibacterial effect. Nonwoven fabric and method for its manufacture.

In order to achieve the above object, the technical solution of the present invention is: a high-elastic antibacterial nonwoven fabric with a honeycomb structure, comprising a plurality of composite fiber webs stacked in sequence, characterized in that: the interior of the composite fiber web is sprayed with an antibacterial agent , the composite fiber webs are connected end to end in turn, and the arrangement is in a zigzag back and forth. There is an angle between adjacent composite fiber webs, and the angle between the fiber web layers is an acute angle less than 2 degrees. There are hot-melt fibers between the fiber nets;

The hot-melt fiber is a low-melt polyester staple fiber with a melting point less than or equal to 110°; the surface density of the hot-melt fiber between adjacent composite webs is 0.5g/m ² -6g/m ² .

The composite fiber web is a fiber web with a layered structure, and the fiber web includes an upper layer fiber web, an elastic fiber web, and a lower layer fiber web that are sequentially stacked from top to bottom.

A method for preparing a high-elastic antibacterial nonwoven fabric of the above-mentioned honeycomb structure, characterized in that: the method comprises the following steps:

(1) Preparation before web formation: Mix and open the various fiber raw materials required for the preparation of the upper layer fiber web, elastic fiber web and lower layer fiber web respectively, and add oil agent during the opening process, the upper layer fiber web The preparation material of the lower fiber web is a mixture of low melting point polyester staple fiber and three-dimensional crimped hollow polyester staple fiber. In the upper layer fiber web and the lower layer fiber web, the weight percentage of low melting point polyester staple fiber is 15%~30%. The weight percentage of the crimped hollow polyester staple fiber is 70%~85%; the preparation material of the elastic web is a mixture of low-melting point polyester staple fiber and elastic polyester staple fiber, in the elastic web, the weight of low-melting point polyester staple fiber The percentage is 10%~25%, and the weight percentage of elastic polyester staple fiber is 75%~90%; the low melting point polyester staple fiber is a skin-core structure polyester staple fiber with a melting point less than or equal to 110°; the described The elastic polyester staple fiber is PTT fiber or elastic polyester ELK fiber;

(2) Mechanical carding: the fibers after mixing and opening are mechanically carded to prepare the upper layer fiber web, elastic fiber web and lower layer fiber web respectively;

(3) Fiber web compounding: the upper fiber web, the elastic fiber web and the lower layer fiber web are superimposed to form a composite fiber web, and the elastic fiber web is sandwiched between the upper layer fiber web and the lower layer fiber web;

(4) Spray antibacterial agent: Spray the prepared antibacterial agent on the composite fiber web under a certain pressure;

(5) Vertical web laying: the composite fiber web is fed into the vertical web laying machine, and hot-melt fibers are sprinkled between the composite web and the composite web, and the web is laid vertically to obtain the web laying cotton. The width of the web laying is 5mm~200mm ;

(6) Drying: heat and cool the laid cotton in turn after the vertical laying process;

(7) Edge trimming: cut off the irregular edges on both sides of the netting cotton;

(8) Winding: after trimming, winding to obtain the high-elastic antibacterial nonwoven fabric with honeycomb structure.

Due to the adoption of the above technical scheme, the highly elastic and antibacterial nonwoven fabric of the honeycomb structure of the present invention has the following characteristics:

One, in the highly elastic antibacterial nonwoven fabric of a kind of honeycomb structure of the present invention and manufacturing method thereof, on the front and back surfaces of the composite fiber web that is connected end to end in sequence, and is Z-shaped reciprocating folding, sprinkle hot-melt fiber, this design can Ensure that there are enough hot-melt fibers between the adjacent composite webs after folding. When the hot-melt fibers are heated and melted in the drying process, they can bond between adjacent composite webs. Increase the cohesion between the composite fiber webs and avoid the dispersion between the composite fiber webs, so that the high-elastic antibacterial nonwovens form a honeycomb structure as a whole. When a certain part is pressed, the pressure will be dispersed to the surrounding area and the recovery will be fast. , good elasticity, compared with the existing technology, can greatly improve the elasticity of the product, suitable for baby products, cushions, bedding products, bra cups, automotive interiors, sports protective products and other fields with high elasticity requirements. Therefore, the elasticity of the present invention is very good.

2. In a high-elastic antibacterial nonwoven fabric with a honeycomb structure of the present invention and its manufacturing method, the composite fiber web can preferably be a fiber web with a layered structure, and the fiber web includes an upper layer of fiber webs that are sequentially stacked from top to bottom , elastic web, and lower web, the advantages of this design are as follows: first, the additional elastic web can improve the elasticity of the final product; second, the position design of the elastic web sandwiched between the upper web and the lower web can Ensure that the elastic fiber web after vertical laying is evenly distributed in the product, so that the elasticity of the prepared product is uniform and there will be no difference in elasticity; again, the appearance of the product is the upper fiber web or the lower fiber web, and the product's hand feel is mainly Determined by the performance of the upper or lower layer of fiber web, it can improve the hand feel of the product on the basis of high elasticity; fourth, the manufacturing materials of the upper layer of fiber web, the lower layer of fiber web, and the elastic fiber web include low-melting point polyester staple fiber , in the process of composite fiber web and vertical web laying process, the low-melting point polyester staple fibers in the upper layer fiber web, lower layer fiber web and elastic fiber web will be exposed on the surface of the fiber web, and will be heated and melted in the drying process, so that Increase the cohesion between composite webs, avoid delamination, and improve the elasticity of the final product. Therefore, the invention not only has high elasticity and uniform structure, but also has good hand feeling and is easy to adjust the performance of the product.

3. The present invention selects an antibacterial agent with good antibacterial effect and sprays it into the composite fiber web in the form of a spray, so that the antibacterial purpose of the nonwoven fabric can be realized.

Four, in the highly elastic antibacterial nonwoven fabric of a kind of honeycomb structure of the present invention and manufacture method thereof, the unique vertical structure of the final product in the vertical direction adds the cohesive force provided by the low-melting point polyester staple fiber between the composite webs, so that The fiber aggregate has great elasticity and compression resistance, and can avoid delamination; compared with sponge, this product has no yellowing, good air permeability, stable size, waste can be recycled, and is suitable for consumption in an environmentally friendly and low-carbon society Compared with three-dimensional elastic woven fabrics and warp-knitted spacer fabrics, the process is simple, the adaptability to raw materials is strong, the source of raw materials is wide, the production cost is low, and the product application field is wider. Therefore, the present invention not only has high elasticity and low cost, but also has a simple structure and is environmentally friendly.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

FIG. 2 is a schematic diagram of an enlarged structure at point A in FIG. 1 .

In the figure: composite fiber web 1, upper layer fiber web 4, elastic fiber web 5, lower layer fiber web 6, hot-melt fiber 2, fiber layer angle 3, antibacterial agent 7.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

See Fig. 1, Fig. 2, a kind of high-elastic antibacterial nonwoven fabric of honeycomb structure, comprises a plurality of composite webs 1 stacked in sequence, it is characterized in that: the interior of described composite web 1 is sprayed with antibacterial agent 7, composite The fiber webs 1 are connected end to end in turn, and the arrangement is in a Z-shape back and forth. There is an angle 3 between the adjacent composite fiber webs 1, and the angle 3 between the fiber web layers is an acute angle less than 2 degrees. The hot-melt fiber 2 is sandwiched between the composite fiber webs 1;

The hot-melt fiber 2 is a low-melt polyester staple fiber with a melting point less than or equal to 110°; the surface density of the hot-melt fiber ² between adjacent composite webs 1 is 0.5g/m2-6g/ m ² .

The composite fiber web 1 is a layered fiber web, which includes an upper layer fiber web 4 , an elastic fiber web 5 , and a lower layer fiber web 6 stacked sequentially from top to bottom.

A kind of preparation method of the high elasticity antibacterial nonwoven fabric of above-mentioned honeycomb structure, this method comprises the steps:

(1) Preparation before web formation: first mix and open various fiber raw materials required for preparing the upper layer fiber web 4 , the elastic fiber web 5 and the lower layer fiber web 6 . The non-woven mixed opening equipment runs at a high speed. Since the raw materials are all chemical fibers, the hygroscopicity is poor compared with natural ones. Static electricity is easily generated during the mixed opening process. Adding an oil agent during the opening process can prevent static electricity from being generated. And affect product quality. The preparation material of the upper layer fiber web 4 and the lower layer fiber web 6 is a mixture of low-melting point polyester staple fiber and three-dimensional crimped hollow polyester staple fiber. In the upper layer fiber web 4 and the lower layer fiber web 6, the weight percentage of the low melting point polyester staple fiber is 15%~30%, the percentage by weight of the three-dimensional crimped hollow polyester staple fiber is 70%~85%; Among them, the weight percentage of low-melting point polyester staple fiber is 10%~25%, and the weight percentage of elastic polyester staple fiber is 75%~90%; the low melting point polyester staple fiber is a sheath core whose melting point is less than or equal to 110° Structural polyester staple fiber; the elastic polyester staple fiber is PTT fiber or elastic polyester ELK fiber;

(2) Mechanical carding: the fibers after mixing and opening are mechanically carded to prepare the upper fiber web 4, the elastic fiber web 5, and the lower fiber web 6 respectively;

(3) Fiber web compounding: the upper layer fiber web 4, the elastic fiber web 5, and the lower layer fiber web 6 are superimposed to form a composite fiber web 1, and the elastic fiber web 5 is sandwiched between the upper layer fiber web 4 and the lower layer fiber web 6 , so that the elastic web 5 is evenly distributed in the product, so that the product is uniform in elasticity and there will be no elastic difference. The performance of the fiber net 4 and the lower fiber net 6 is determined, which is beneficial to the structural design of the product, and it is easy to adjust the performance of the product to meet the various requirements of the product, such as the upper fiber net 4 and the lower fiber net 6 in the appearance of the product. The fineness of the three-dimensional crimped hollow fiber can be selected to be finer, so that the obtained product has both high elasticity and good hand feeling;

(4) Spray antibacterial agent: spray the prepared antibacterial agent 7 on the composite fiber web 1 under a certain pressure;

(5) Vertical web laying: the composite fiber web 1 is fed into the vertical web laying machine, and the hot-melt fiber 2 is sprinkled between the composite web 1 and the composite web 1 for vertical web laying, thereby obtaining the web-laying cotton. Hot-melt fiber 2 uses polyester staple fibers with low melting point. In order to make the final product form an overall honeycomb structure, the polyester staple fibers with low melting point should be spread as evenly as possible, and the amount of spreading should not be too much, so as to avoid the low-melting point polyester staple fibers being melted. A layer of hardened film structure is formed between the composite fiber webs 1, which instead affects the honeycomb structure of the product and reduces the elasticity of the product. The surface density of the hot-melt fiber 2 between adjacent composite fiber webs 1 is controlled at 0.5g/m ² -6g/ ^m2 range. When the output speed of the vertical web-laying machine is constant, the greater the speed of web-laying, that is, the more layers of web-laying in the length direction of the product, the smaller the angle 3 between adjacent composite fiber webs 1. Smaller, the closer it is to 0 degrees, the more upright the composite fiber web 1 is, and the better the elasticity of the product. By adjusting the technical parameters of vertical web laying, the angle 3 between the fiber layers between adjacent composite fiber webs 1 is controlled within the range of 0-2 degrees, so as to ensure the elastic performance of the final product. Laying width is 5mm~200mm. The wider the width of the web, the thicker the thickness of the product, but when the width of the web is too large, the compression resistance and compression resilience of the product will be affected, and the effect will be worse. The width of the web should be controlled within 200mm;

(6) Drying: heat and cool the laid cotton in sequence after the vertical laying process. The low-melting point polyester staple fibers in the laid cotton are heated and melted, and the melted polymer flows and condenses at the intersection points of the fibers. When the laid cotton is cooled, it is strengthened and becomes an elastic nonwoven fabric. At the same time, the hot-melt fiber 2 melts to bond the adjacent composite fiber webs 1, so that the product forms an overall honeycomb structure and improves the elasticity of the product. The moisture of the antibacterial agent 7 in the composite fiber web 1 is evaporated, so that the product has an antibacterial effect. The drying method can adopt the method of hot air penetrating the laid cotton to heat the polyester staple fiber with low melting point, and heat rapidly and evenly in the entire width direction of the laid cotton. The temperature in the drying room should be as uniform as possible. At the same time, the speed and direction of the hot air can be controlled, and the hot air will not damage the structure of the laid cotton during the circulation process;

(7) Edge trimming: Cut off the irregular edges on both sides of the netting cotton. After the drying process is finished, the dryer outputs the width direction of the laid cotton, and the edge trimmers are respectively installed on both sides of the laid cotton to cut off the irregular part of the edge of the laid cotton to make a certain width of the laid net. cotton;

(8) Winding: after trimming, winding to obtain the high-elastic antibacterial nonwoven fabric with honeycomb structure.

Example 1

A highly elastic and antibacterial nonwoven fabric with a honeycomb structure of 200 mm in thickness and a preparation method thereof.

See Fig. 1 and Fig. 2, the highly elastic and antibacterial nonwoven fabric with a thickness of 200 mm honeycomb structure, including a plurality of composite fiber webs 1 stacked in sequence, the interior of the composite fiber web 1 is sprayed with antibacterial agent 7, and the composite fiber webs 1 are connected end to end in sequence, The arrangement is in a reciprocating Z-shape, and there is a fiber layer angle 3 between adjacent composite fiber webs 1, and the fiber layer angle 3 approaches 0 degrees, and is sandwiched between adjacent composite fiber webs 1 Hot-melt fiber 2 is arranged, and hot-melt fiber 2 is that melting point is 110 °, fineness is 2D, and length is the low melting point polyester staple fiber of 51mm.

The composite fiber web 1 is a layered fiber web, which includes an upper layer fiber web 4 , an elastic fiber web 5 , and a lower layer fiber web 6 stacked sequentially from top to bottom.

The preparation method of the high elastic antibacterial nonwoven fabric of above-mentioned honeycomb structure, this method comprises the steps:

(1) Preparation before web formation: first mix and open various fiber raw materials required for preparing the upper layer fiber web 4 , the elastic fiber web 5 and the lower layer fiber web 6 . Antistatic oil is added during the opening process. The preparation material of the upper layer fiber web 4 and the lower layer fiber web 6 is a mixture of low-melting point polyester staple fiber and three-dimensional crimped hollow polyester staple fiber. In the upper layer fiber web 4 and the lower layer fiber web 6, the weight percentage of the low melting point polyester staple fiber is 15%~30%, the percentage by weight of the three-dimensional crimped hollow polyester staple fiber is 70%~85%, the fineness of the three-dimensional crimped hollow polyester staple fiber is 3D, and the length is 51mm; the preparation material of the elastic web 5 is low melting point The mixture of polyester staple fiber and elastic polyester ELK fiber, in the elastic web 5, the weight percentage of low melting point polyester staple fiber is 10%~25%, the weight percentage of elastic polyester ELK fiber is 75%~90%, elastic The fineness of the polyester ELK fiber is 6.6D, and the length is 64mm; the low melting point polyester staple fiber is a sheath-core structured polyester staple fiber with a melting point equal to 110°;

(2) Mechanical carding: the fibers after mixing and opening are mechanically carded to prepare the upper fiber web 4, the elastic fiber web 5, and the lower fiber web 6 respectively;

(3) Fiber web compounding: the upper fiber web 4, the elastic fiber web 5, and the lower layer fiber web 6 are superimposed into a composite fiber web 1;

(4) Spray antibacterial agent: spray the prepared antibacterial agent 7 on the composite fiber web 1 under a certain pressure;

(5) Vertical laying: the composite fiber web 1 is fed into the vertical web laying machine, and the low melting point polyester short with a melting point of 110°, a fineness of 2D, and a length of 51mm is sprinkled between the composite fiber web 1 and the composite fiber web 1. Fibers with an areal density of 0.5 g/m ² between adjacent composite webs 1 were laid vertically to obtain a laid cotton. The fiber layer angle 3 between adjacent composite fiber webs 1 approaches 0 degrees, the composite fiber webs 1 are upright, and the web width is 200mm;

(6) Drying: heat and cool the laid cotton in turn after the vertical laying process;

(7) Edge trimming: cut off the irregular edges on both sides of the netting cotton;

(8) Winding: after trimming, winding to obtain the high-elastic antibacterial nonwoven fabric with honeycomb structure.

Example 2

A highly elastic and antibacterial nonwoven fabric with a honeycomb structure with a thickness of 5 mm and a preparation method thereof.

See Fig. 1 and Fig. 2, a highly elastic antibacterial nonwoven fabric with a honeycomb structure of 5 mm thickness, including a plurality of composite fiber webs 1 stacked in sequence, the interior of the composite fiber web 1 is sprayed with an antibacterial agent 7, and the composite fiber webs 1 are connected end to end in sequence, The arrangement is in a reciprocating Z-shape, and there is an angle 3 between adjacent composite fiber webs 1. The angle 3 between the fiber web layers is less than 2 degrees and approaches 2 degrees. 1 is clamped with a hot-melt fiber 2, and the hot-melt fiber 2 is a low-melt polyester staple fiber with a melting point of 110°, a fineness of 2D, and a length of 51 mm.

The composite fiber web 1 is a layered fiber web, which includes an upper layer fiber web 4 , an elastic fiber web 5 , and a lower layer fiber web 6 stacked sequentially from top to bottom.

The preparation method of the high elastic antibacterial nonwoven fabric of above-mentioned honeycomb structure, this method comprises the steps:

(1) Preparation before web formation: first mix and open various fiber raw materials required for preparing the upper layer fiber web 4 , the elastic fiber web 5 and the lower layer fiber web 6 . Antistatic oil is added during the opening process. The preparation material of the upper layer fiber web 4 and the lower layer fiber web 6 is a mixture of low-melting point polyester staple fiber and three-dimensional crimped hollow polyester staple fiber. In the upper layer fiber web 4 and the lower layer fiber web 6, the weight percentage of the low melting point polyester staple fiber is 15%~30%, the percentage by weight of the three-dimensional crimped hollow polyester staple fiber is 70%~85%, the fineness of the three-dimensional crimped hollow polyester staple fiber is 3D, and the length is 51mm; the preparation material of the elastic web 5 is low melting point The mixture of polyester staple fiber and PTT fiber, in the elastic web 5, the weight percentage of low-melting point polyester staple fiber is 10%~25%, the weight percentage of PTT fiber is 75%~90%, and the fineness of PTT fiber is 2.5% D, length is 51mm; Described low-melting point polyester staple fiber is the sheath-core structure type polyester staple fiber that melting point is equal to 110 °;

(2) Mechanical carding: the fibers after mixing and opening are mechanically carded to prepare the upper fiber web 4, the elastic fiber web 5, and the lower fiber web 6 respectively;

(3) Fiber web compounding: the upper fiber web 4, the elastic fiber web 5, and the lower layer fiber web 6 are superimposed into a composite fiber web 1;

(4) Spray antibacterial agent: spray the prepared antibacterial agent 7 on the composite fiber web 1 under a certain pressure;

(5) Vertical laying: the composite fiber web 1 is fed into the vertical web laying machine, and the low melting point polyester short with a melting point of 110°, a fineness of 2D, and a length of 51mm is sprinkled between the composite fiber web 1 and the composite fiber web 1. Fibers with an areal density of 6 g/m ² between adjacent composite webs 1 were vertically laid to obtain a laid cotton. The fiber layer angle 3 between adjacent composite fiber webs 1 is less than 2 degrees and approaches 2 degrees, the composite fiber webs 1 are upright, and the width of the web is 5 mm;

(6) Drying: heat and cool the laid cotton in turn after the vertical laying process;

(7) Edge trimming: cut off the irregular edges on both sides of the netting cotton;

(8) Winding: after trimming, winding to obtain the high-elastic antibacterial nonwoven fabric with honeycomb structure.

Example 3

A highly elastic and antibacterial nonwoven fabric with a honeycomb structure with a thickness of 105 mm and a preparation method thereof.

See Fig. 1 and Fig. 2. The highly elastic antibacterial nonwoven fabric with a thickness of 105mm honeycomb structure includes multiple composite webs 1 stacked in sequence. The interior of the composite web 1 is sprayed with an antibacterial agent 7, and the composite webs 1 are connected end to end in turn. The arrangement is in a reciprocating Z-shape, and there is an angle 3 between adjacent composite fiber webs 1. The angle 3 between the fiber web layers is less than 1 degree and approaches 1 degree. 1 is clamped with a hot-melt fiber 2, and the hot-melt fiber 2 is a low-melt polyester staple fiber with a melting point of 110°, a fineness of 2D, and a length of 51 mm.

The composite fiber web 1 is a layered fiber web, which includes an upper layer fiber web 4 , an elastic fiber web 5 , and a lower layer fiber web 6 stacked sequentially from top to bottom.

The preparation method of the high elastic antibacterial nonwoven fabric of above-mentioned honeycomb structure, this method comprises the steps:

(1) Preparation before web formation: first mix and open various fiber raw materials required for preparing the upper layer fiber web 4 , the elastic fiber web 5 and the lower layer fiber web 6 . Antistatic oil is added during the opening process. The preparation material of the upper layer fiber web 4 and the lower layer fiber web 6 is a mixture of low-melting point polyester staple fiber and three-dimensional crimped hollow polyester staple fiber. In the upper layer fiber web 4 and the lower layer fiber web 6, the weight percentage of the low melting point polyester staple fiber is 15%~30%, the percentage by weight of the three-dimensional crimped hollow polyester staple fiber is 70%~85%, the fineness of the three-dimensional crimped hollow polyester staple fiber is 3D, and the length is 51mm; the preparation material of the elastic web 5 is low melting point The mixture of polyester staple fiber and PTT fiber, in the elastic web 5, the weight percentage of low-melting point polyester staple fiber is 10%~25%, the weight percentage of PTT fiber is 75%~90%, and the fineness of PTT fiber is 2.5% D, length is 51mm; Described low-melting point polyester staple fiber is the sheath-core structure type polyester staple fiber that melting point is equal to 110 °;

(2) Mechanical carding: the fibers after mixing and opening are mechanically carded to prepare the upper fiber web 4, the elastic fiber web 5, and the lower fiber web 6 respectively;

(3) Fiber web compounding: the upper fiber web 4, the elastic fiber web 5, and the lower layer fiber web 6 are superimposed into a composite fiber web 1;

(4) Spray antibacterial agent: spray the prepared antibacterial agent 7 on the composite fiber web 1 under a certain pressure;

(5) Vertical laying: the composite fiber web 1 is fed into the vertical web laying machine, and the low melting point polyester short with a melting point of 110°, a fineness of 2D, and a length of 51mm is sprinkled between the composite fiber web 1 and the composite fiber web 1. Fibers with an areal density of 3 g/m ² between adjacent composite webs 1 were vertically laid to obtain a laid cotton. The angle 3 between the fiber layers between adjacent composite fiber webs 1 is less than 1 degree and approaches 1 degree, the composite fiber webs 1 are upright, and the web laying width is 105 mm;

(6) Drying: heat and cool the laid cotton in turn after the vertical laying process;

(7) Edge trimming: cut off the irregular edges on both sides of the netting cotton;

(8) Winding: after trimming, winding to obtain the high-elastic antibacterial nonwoven fabric with honeycomb structure.

Claims (3)

1. A high-elastic antibacterial nonwoven fabric of honeycomb structure, comprising a plurality of composite fiber webs (1) stacked successively, characterized in that: the inside of the composite fiber web (1) is sprayed with antibacterial agent (7), The composite fiber webs (1) are connected end to end in turn, arranged in a Z-shape back and forth, and there is a fiber layer angle (3) between adjacent composite fiber webs (1), and the fiber layer angle (3) is The acute angle is less than 2 degrees, and the hot-melt fiber (2) is sandwiched between the adjacent composite fiber webs (1); the composite fiber web (1) is a fiber web with a layered structure , and the fiber web includes The upper fiber web (4), the elastic fiber web (5), and the lower fiber web (6) are stacked sequentially from top to bottom, and the preparation material of the upper layer fiber web (4) and the lower layer fiber web (6) is low-melting point polyester staple fiber The mixture with three-dimensionally crimped hollow polyester staple fibers , in the upper web (4) and the lower web (6), the percentage by weight of low-melting point polyester staple fibers is 15% to 30%, and the three-dimensionally crimped hollow polyester staple fibers The weight percentage is 70%～85%; The preparation material of elastic web (5) is the mixture of low melting point polyester staple fiber and elastic polyester staple fiber, in elastic web (5), the low melting point polyester staple fiber The weight percentage is 10% to 25%, and the weight percentage of the elastic polyester staple fiber is 75% to 90%; the low melting point polyester staple fiber is a skin-core structure polyester staple fiber with a melting point less than or equal to 110°; the The elastic polyester staple fiber is PTT fiber or elastic polyester ELK fiber . 2. The high-elastic antibacterial nonwoven fabric of a kind of honeycomb structure as claimed in claim 1, is characterized in that: described hot-melt fiber (2) is the low-melting-point polyester staple fiber that fusing point is less than or equal to 110 °; The surface density of the hot-melt fibers (2) between adjacent composite fiber webs (1) is 0.5g/m ² -6g/m ² . 3. a preparation method of the high elastic antibacterial nonwoven fabric of honeycomb structure described in any one of claim 1-2 , it is characterized in that: the method comprises the steps: (a) Preparation before web formation: mix and open the various fiber raw materials required for the preparation of the upper layer fiber web (4), the elastic fiber web (5) and the lower layer fiber web (6) respectively, and Adding oil agent during the process, the preparation material of the upper layer fiber web (4) and the lower layer fiber web (6) is a mixture of low-melting point polyester staple fiber and three-dimensional crimped hollow polyester staple fiber, and the upper layer fiber web (4) and the lower layer fiber web In (6), the weight percentage of low-melting point polyester staple fiber is 15% to 30%, and the weight percentage of three-dimensional crimped hollow polyester staple fiber is 70% to 85%; the preparation material of the elastic web (5) is low melting point polyester A mixture of staple fibers and elastic polyester staple fibers, in the elastic web (5), the weight percentage of low-melting point polyester staple fibers is 10% to 25%, and the weight percentage of elastic polyester staple fibers is 75% to 90%; The low-melting polyester staple fiber is a sheath-core polyester staple fiber with a melting point less than or equal to 110°; the elastic polyester staple fiber is PTT fiber or elastic polyester ELK fiber; (b) Mechanical carding: the fibers after mixing and opening are mechanically carded into a web to prepare the upper layer fiber web (4), the elastic fiber web (5) and the lower layer fiber web (6); (c) Fiber web compounding: the upper fiber web (4), the elastic fiber web (5), and the lower layer fiber web (6) are superimposed to form a composite fiber web (1), and the elastic fiber web (5) is sandwiched on the upper layer In the middle of the fiber net (4) and the lower layer of fiber net (6); (d) Spray antibacterial agent: spray prepared antibacterial agent (7) to composite web (1) under certain pressure; (e) Vertical web laying: the composite web (1) is fed into the vertical web laying machine, and the hot-melt fiber (2) is sprinkled between the composite web (1) and the composite web (1) for vertical web laying, Obtained netting cotton, the width of netting is 5mm～200mm; (f) Drying: heating and cooling the laid cotton after the vertical laying process in sequence; (g) Edge trimming: cut off the irregular edges on both sides of the netting cotton; (h) Winding: after trimming, winding to obtain the highly elastic and antibacterial nonwoven fabric with honeycomb structure.