阅读说明：本技术 一种具有纳米银离子层的覆膜口罩过滤层及其制作工艺 (Film-covered mask filter layer with nano silver ion layer and manufacturing process thereof ) 是由 沈建强 于 2020-05-14 设计创作，主要内容包括：本发明公开了一种具有纳米银离子层的覆膜口罩过滤层及其制作工艺,所述过滤层包括内层纺粘无纺布、PTFE纳米膜和外层纺粘无纺布,所述制作工艺包括：A、喷涂：选取内层纺粘无纺布,在其表面均匀喷涂一层纳米银离子；本发明的有益效果在于：通过本申请工艺制得的口罩过滤层,同时具有物理拦截和静电吸附两种过滤方式,并且利用PTFE纳米膜0.02-0.05μm的孔径,有效阻隔有毒气体、气溶胶、有毒毒液体,又能保证水蒸气通过,使得该过滤层具有高阻隔、高防水、高透湿的功能；利用该过滤层制得的口罩更加耐用、可水冲洗重复性使用。(The invention discloses a filtering layer of a film-covered mask with a nano silver ion layer and a manufacturing process thereof, wherein the filtering layer comprises an inner layer spun-bonded non-woven fabric, a PTFE nano film and an outer layer spun-bonded non-woven fabric, and the manufacturing process comprises the following steps: A. spraying: selecting an inner layer of spun-bonded non-woven fabric, and uniformly spraying a layer of nano silver ions on the surface of the inner layer of spun-bonded non-woven fabric; the invention has the beneficial effects that: the mask filter layer prepared by the process has two filtering modes of physical interception and electrostatic adsorption, effectively blocks toxic gas, aerosol and toxic liquid by using the pore diameter of the PTFE nano film of 0.02-0.05 mu m, and can ensure that water vapor passes through, so that the filter layer has the functions of high blocking, high water resistance and high moisture permeability; the mask made of the filter layer is more durable and can be repeatedly used by water washing.)

1. The utility model provides a tectorial membrane gauze mask filter layer with nanometer silver ion layer which characterized in that: the filter layer includes inlayer spunbonded nonwoven, PTFE nanometer membrane and skin spunbonded nonwoven, the preparation technology includes:

A. spraying: selecting an inner layer of spun-bonded non-woven fabric, and uniformly spraying a layer of nano silver ions on the surface of the inner layer of spun-bonded non-woven fabric;

B. hot coating: c, thermally coating a PTFE nano film on the surface of the nano silver ion layer in the step A to prepare a filter material Y;

C. shaping: cooling and shaping the filter material Y in the step B for 7-9 hours;

D. gluing: and selecting outer-layer spun-bonded non-woven fabrics, and bonding the outer-layer spun-bonded non-woven fabrics on the surface of the PTFE nano membrane of the filter material Y through a gluing process to prepare the mask filter layer.

2. The manufacturing process of the filtering layer of the mask with the nano silver ion layer according to claim 1, wherein the manufacturing process comprises the following steps: the inner layer spun-bonded non-woven fabric is a modified spun-bonded non-woven fabric.

3. The manufacturing process of the filtering layer of the mask with the nano silver ion layer according to claim 1, wherein the manufacturing process comprises the following steps: the PTFE nano-film is modified by a low-temperature plasma technology.

4. The manufacturing process of the filtering layer of the mask with the nano silver ion layer according to claim 1, wherein the manufacturing process comprises the following steps: the gluing process comprises the steps that the outer-layer spun-bonded non-woven fabric is unreeled by an unreeling wheel, stretched and unfolded, enters the middle of a rubber wheel and a pressed wheel for glue dispensing, the depth of the outer-layer spun-bonded non-woven fabric pressed into a glue dispensing pit is adjusted through the gap between a back pressing wheel and a plate pasting wheel, the temperature is controlled to be 80-100 ℃, and the pressure of the pressing wheel is adjusted to glue and press the filter material Y on the outer-layer spun-bonded non-woven fabric.

The technical field is as follows:

the invention relates to the field of mask fabrics, in particular to a film-covered mask filter layer with a nano silver ion layer and a manufacturing process thereof.

Background art:

the novel coronavirus is the 7 th known coronavirus in 2019, has the diameter of about 80-120 nanometers, and can infect spine animals such as human, mouse, pig, cat, dog, wolf, chicken, cattle, poultry and the like. The mask is an important means for isolating virus transmission, protecting susceptible people and realizing effective individual protection. At present, gauze mask core layer gap diameter is great, and the unable perfect realization is kept apart the physics of granule bacterium, virus, and adopts the gauze mask of electrostatic absorption method, increases along with wearing time, because human activities such as wearer's breathing make the gauze mask damp, and its electrostatic absorption ability weakens, keeps apart the effect foundry goods variation, can't realize permanent effectual protection.

The invention content is as follows:

the invention aims to solve the existing problems and provides a membrane-covered mask filter layer with a nano silver ion layer and a manufacturing process thereof.

The technical solution of the invention is as follows:

the utility model provides a tectorial membrane gauze mask filter layer with nanometer silver ion layer, the filter layer includes that inlayer spunbonded nonwoven, PTFE nanometer membrane and outer spunbonded nonwoven, the preparation technology includes:

A. spraying: selecting an inner layer of spun-bonded non-woven fabric, and uniformly spraying a layer of nano silver ions on the surface of the inner layer of spun-bonded non-woven fabric;

B. hot coating: c, thermally coating a PTFE nano film on the surface of the nano silver ion layer in the step A to prepare a filter material Y;

C. shaping: cooling and shaping the filter material Y in the step B for 7-9 hours;

D. gluing: and selecting outer-layer spun-bonded non-woven fabrics, and bonding the outer-layer spun-bonded non-woven fabrics on the surface of the PTFE nano membrane of the filter material Y through a gluing process to prepare the mask filter layer.

Preferably, the inner layer spunbonded nonwoven fabric is a modified spunbonded nonwoven fabric.

Preferably, the PTFE nanomembrane is modified by a low temperature plasma technique.

Preferably, the gluing process comprises the steps that the outer-layer spun-bonded non-woven fabric is uncoiled by an uncoiling wheel, stretched and then glued between a rubber wheel and a pressed wheel, the depth of the outer-layer spun-bonded non-woven fabric pressed into a glue dispensing pit is adjusted through the gap between a back pressing wheel and a plate pasting wheel, the temperature is controlled to be 80-100 ℃, and the pressure of the pressing wheel is adjusted to glue and press the filter material Y on the outer-layer spun-bonded non-woven fabric.

The invention has the beneficial effects that: the mask filter layer prepared by the process has two filtering modes of physical interception and electrostatic adsorption, effectively blocks toxic gas, aerosol and toxic liquid by using the pore diameter of the PTFE nano film of 0.02-0.05 mu m, and can ensure that water vapor passes through, so that the filter layer has the functions of high blocking, high water resistance and high moisture permeability; the mask made of the filter layer is more durable and can be repeatedly used by water washing.

The specific implementation mode is as follows: