Face masks having an elastic and polyolefen thermoplastic band thereto by heat and pressure

A polyolefin and thermoplastic technology, applied in the field of preparing filter masks, can solve the problem of not being able to filter air
CN1352532AInactive Publication Date: 2002-06-053M INNOVATIVE PROPERTIES CO
27 Cites 12 Cited by

Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
3M INNOVATIVE PROPERTIES CO
Publication Date
2002-06-05
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A filtering mask (10), comprising: a mask body (20) and a tie strap (30). The mask body (20) is adapted to cover the nose and mouth of the wearer and includes polyolefin-containing fibers. The tether (30) comprises an elastic component and a thermoplastic fiber component, the thermoplastic fiber component having a melting point of about 250°C or lower, selected from polyolefins, substituted polyolefins, and mixtures thereof, the tether (30) is attached to a reliable place (23) on said mask body (20) by heat and pressure.
Need to check novelty before this filing date? Find Prior Art

Description

[0001] The present invention relates to a filtering mask supported on the wearer's face by straps comprising an elastic component and a thermoplastic polyolefin component, the straps being attached to the mask body by heat and pressure Up. background of the invention

[0002] In many environments where the air contains dust or other airborne pollutants, fiber filter masks are often used to protect workers. A mask is used to remove particulate matter from the air, which is then inhaled by the wearer. In some settings, masks are used to protect nearby people (i.e., people other than those wearing the mask) or nearby objects (such as equipment placed in a clean room). Masks are used to remove infectious agents exhaled by the wearer to protect nearby people and nearby objects.

[0003] Fibrous filtering masks typically have a porous mask body shaped to filter inhaled or expelled air. Air passes through the mask material, and the filter layers in the mask remove airborne particl...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More