阅读说明：本技术 一种抑菌医卫专用复合非织造布生产工艺 (Production process of antibacterial medical and sanitary special composite non-woven fabric ) 是由 严华荣 董二莹 陈健康 强新辉 于 2019-08-27 设计创作，主要内容包括：本发明公开了一种抑菌医卫专用复合非织造布生产工艺,包括以下步骤：步骤一：第一纤维网、第二纤维网、第三纤维网分别在各自的工序上进行连续加工；步骤二：在连续加工出的第一纤维网上依次铺上第一熔喷层和第二熔喷层,第一熔喷层和第二熔喷层的熔喷分别在各自的工序上完成；步骤三：第二纤维网和第三纤维网依次叠合铺在经过两次熔喷铺网的第一纤维网上；步骤四：将重叠后的第一纤维网、第二纤维网、第三纤维网进行热轧加固。本发明将第一纤维网、第一熔喷层、第二熔喷层、第二纤维网、第三纤维网采用一步法在线复合制备而成,复合的非织造布具有较好的抗菌性,抗静水压高,在拥有高阻隔性的同时兼具有良好的透气性。(The invention discloses a production process of a bacteriostatic medical and sanitary special composite non-woven fabric, which comprises the following steps: the method comprises the following steps: the first fiber web, the second fiber web and the third fiber web are continuously processed in respective processes; step two: sequentially laying a first melt-blown layer and a second melt-blown layer on a continuously processed first fiber net, wherein melt blowing of the first melt-blown layer and the second melt-blown layer is respectively completed on respective working procedures; step three: the second fiber web and the third fiber web are sequentially overlapped and laid on the first fiber web subjected to twice melt-blowing and lapping; step four: and carrying out hot rolling reinforcement on the overlapped first fiber web, the second fiber web and the third fiber web. According to the invention, the first fiber web, the first melt-blown layer, the second fiber web and the third fiber web are prepared by one-step online compounding, and the compounded non-woven fabric has good antibacterial property, high hydrostatic pressure resistance, high barrier property and good air permeability.)

1. A production process of antibacterial medical and sanitary special composite non-woven fabric is characterized by comprising the following steps: the non-woven fabric consists of a first fiber net, a first melt-blown layer, a second fiber net and a third fiber net which are sequentially overlapped, and comprises the following steps:

the method comprises the following steps: the first fiber web, the second fiber web and the third fiber web are continuously processed in respective processes;

step two: sequentially laying a first melt-blown layer and a second melt-blown layer on a continuously processed first fiber net, wherein melt blowing of the first melt-blown layer and the second melt-blown layer is respectively completed on respective working procedures;

step three: the second fiber web and the third fiber web are sequentially overlapped and laid on the first fiber web after twice overlapping and laying;

step four: hot rolling and reinforcing the overlapped first fiber web, the second fiber web and the third fiber web;

step five: and cutting the reinforced non-woven fabric.

2. The production process of the bacteriostatic medical-health special composite non-woven fabric according to claim 1, which is characterized in that: the first fiber web, the second fiber web and the third fiber web are made of the same raw materials, and the raw materials comprise 68-78 parts of polypropylene, 1-5 parts of antistatic master batch and 3-8 parts of antibacterial master batch.

3. The production process of the bacteriostatic medical and health special composite non-woven fabric according to claim 2, which is characterized in that: the raw materials of the first fiber web, the second fiber web and the third fiber web are 72-74 parts of polypropylene, 3 parts of antistatic master batch and 5 parts of antibacterial master batch.

4. The production process of the bacteriostatic medical-health special composite non-woven fabric according to claim 1, which is characterized in that: the first melt-blown layer and the second melt-blown layer are made of the same raw materials, the raw materials are melt-blown polypropylene, and the mass ratio of the first melt-blown layer to the second melt-blown layer is 1: 1.

5. the production process of the bacteriostatic medical-health special composite non-woven fabric according to claim 1, which is characterized in that: the total mass of the first melt-blown layer and the second melt-blown layer accounts for 15-25% of the total mass of the non-woven fabric.

6. The production process of the bacteriostatic medical-health special composite non-woven fabric according to claim 1, which is characterized in that: the first fiber web, the second fiber web and the third fiber web are formed through a spun-bonding process, and the first fiber web, the second fiber web and the third fiber web are formed by different spun-bonding spray heads in the same production line.

7. The production process of the bacteriostatic medical-health special composite non-woven fabric according to claim 1, which is characterized in that: the first melt-blown layer and the second melt-blown layer are formed by different melt-blown nozzles of the same production line.

[ technical field ] A method for producing a semiconductor device

The invention relates to the technical field of sanitary materials, in particular to the technical field of a production process of composite non-woven fabrics.

[ background of the invention ]

In recent years, there has been an increasing demand for medical protective materials for preventing indirect infection and viral cross-infection caused by penetration of bacteria. The research on medical protective articles in developed countries such as Europe and America is started earlier, and materials used for medical treatment, particularly surgical gowns, surgical hole towels, isolation gowns and the like are gradually changed to disposable materials. Most of nonwoven fabrics for medical and health use in the current market have no bacteriostatic effect, and the uniformity of products is poor, so that the functionality and the comfort of the products are poor.

[ summary of the invention ]

The invention aims to solve the problems in the prior art and provides a production process of a special antibacterial medical and sanitary composite non-woven fabric, which can ensure that the prepared composite non-woven fabric has better antibacterial property, high hydrostatic pressure resistance and good air permeability while having high barrier property.

In order to achieve the purpose, the invention provides a production process of a bacteriostatic medical-health special composite non-woven fabric, which consists of a first fiber net, a first melt-blown layer, a second fiber net and a third fiber net which are sequentially overlapped, and comprises the following steps:

the method comprises the following steps: the first fiber web, the second fiber web and the third fiber web are continuously processed in respective processes;

step two: sequentially laying a first melt-blown layer and a second melt-blown layer on a continuously processed first fiber net, wherein melt blowing of the first melt-blown layer and the second melt-blown layer is respectively completed on respective working procedures;

step three: the second fiber web and the third fiber web are sequentially overlapped and laid on the first fiber web after twice overlapping and laying;

step four: hot rolling and reinforcing the overlapped first fiber web, the second fiber web and the third fiber web;

step five: and cutting the reinforced non-woven fabric.

Preferably, the raw materials of the first fiber web, the second fiber web and the third fiber web are the same, and the raw materials comprise 68-78 parts of polypropylene, 1-5 parts of antistatic master batch and 3-8 parts of antibacterial master batch.

Preferably, the raw materials of the first fiber web, the second fiber web and the third fiber web are 72-74 parts of polypropylene, 3 parts of antistatic master batch and 5 parts of antibacterial master batch.

Preferably, the first melt-blown layer and the second melt-blown layer are made of the same raw material, the raw material is melt-blown polypropylene, and the mass ratio of the first melt-blown layer to the second melt-blown layer is 1: 1.

preferably, the total mass of the first meltblown layer and the second meltblown layer comprises 15% to 25% of the total mass of the nonwoven fabric.

Preferably, the first, second and third webs are formed by a spunbond process, and the first, second and third webs are formed by different spunbond heads in the same production line.

Preferably, the first melt-blown layer and the second melt-blown layer are formed by different melt-blown nozzles of the same production line.

The invention has the beneficial effects that: the first fiber net, the first melt-blown layer, the second fiber net and the third fiber net are compounded and prepared on line by adopting a one-step method. Greatly shortens the process flow, can greatly improve the yield per unit time, saves a large amount of energy consumption, reduces the loss of raw materials and reduces the cost of products. The product has good antibacterial property, high hydrostatic pressure resistance, high barrier property and good air permeability. Can be widely applied to the fields of operating gowns, operating hole towels, operating covering cloth, medical bed sheets, isolation clothes, high-grade protective clothes and the like.

The features and advantages of the present invention will be described in detail by way of examples.

[ detailed description ] embodiments

The invention relates to a production process of a bacteriostatic medical-health special composite non-woven fabric, which consists of a first fiber net, a first melt-blown layer, a second fiber net and a third fiber net which are sequentially overlapped, and comprises the following steps:

the method comprises the following steps: the first fiber web, the second fiber web and the third fiber web are continuously processed in respective processes;

step two: sequentially laying a first melt-blown layer and a second melt-blown layer on a continuously processed first fiber net, wherein melt blowing of the first melt-blown layer and the second melt-blown layer is respectively completed on respective working procedures;

step three: the second fiber web and the third fiber web are sequentially overlapped and laid on the first fiber web after twice overlapping and laying;

step four: hot rolling and reinforcing the overlapped first fiber web, the second fiber web and the third fiber web;

step five: and cutting the reinforced non-woven fabric.

The raw materials of the first fiber web, the second fiber web and the third fiber web are the same, and the raw materials comprise 68-78 parts of polypropylene, 1-5 parts of antistatic master batch and 3-8 parts of antibacterial master batch. The first melt-blown layer and the second melt-blown layer are made of the same raw materials, the raw materials are melt-blown polypropylene, and the mass ratio of the first melt-blown layer to the second melt-blown layer is 1: 1. the total mass of the first melt-blown layer and the second melt-blown layer accounts for 15-25% of the total mass of the non-woven fabric. The first fiber web, the second fiber web and the third fiber web are formed through a spun-bonding process, and the first fiber web, the second fiber web and the third fiber web are formed by different spun-bonding spray heads in the same production line. The first melt-blown layer and the second melt-blown layer are formed by different melt-blown nozzles of the same production line.

When the raw materials of the first fiber web, the second fiber web and the third fiber web are 72-74 parts of polypropylene, 3 parts of antistatic master batch and 5 parts of antibacterial master batch, the non-woven fabric has the best antibacterial effect.

The working process of the invention is as follows:

in the working process of the production process of the antibacterial medical-health special composite non-woven fabric, the first fiber net, the first melt-blown layer, the second fiber net and the third fiber net are prepared in an online composite manner by adopting a one-step method. Greatly shortens the process flow, can greatly improve the yield per unit time, saves a large amount of energy consumption, reduces the loss of raw materials and reduces the cost of products. The product has good antibacterial property, high hydrostatic pressure resistance, high barrier property and good air permeability. Can be widely applied to the fields of operating gowns, operating hole towels, operating covering cloth, medical bed sheets, isolation clothes, high-grade protective clothes and the like.

The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.