K型高透口罩纸
适用范围： 中、高档口罩的亲肤层或面层材料，其它过滤类使用材料。
高透口罩纸是本公司采用化学纤维为主要原料，湿法特种纸造纸工艺和国外引进的先进设备研制生产的新产品。质感柔软、透气性好、强度高、无毒无味、安全卫生，深受国外发达国家用户青睐。
技术指标
| 指标名称 | 单位 | 规定 |
| 定量 | g/m2 | 19.0±1.5 |
| 干抗张强度（纵向） | kN/m | ≥0.50 |
| 干抗张强度（横向） | kN/m | ≥0.20 |
| 湿抗张强度（纵向） | kN/m | ≥0.25 |
| 透气度 | L/m2.s | ≥1900 |
| 外观 | 均匀 |
High-permeability mask paper
Application：
Skin-layer or surface layer used in mid-grade and top grade marks.
High-permeability mask paper is a new product developed by our company. It is made from chemical fibers with production technology of wet-land specialty paper and imported advanced equipment. It is deeply favored by users in developed countries for its features, such as soft texture, good permeability, high intensity, non-toxic and odorless, health and safety, etc.
Technical specification：
| Name | unit | specification |
| Basis weight | g/m2 | 19.0±1.5 |
| Thickness | kN/m | ≥0.50 |
| Tensile strength (MD) | kN/m | ≥0.20 |
| Wet tensile strength (MD) | kN/m | ≥0.25 |
| Air permeability | L/(m2.s) | ≥1900 |
| Appearance | uniform | |
