Medical packaging substrate with security feature
OwnerGanesh C. Dekainventor
Life of this patent
Estimating the term…
Abstract
Fibrous webs having a visible security image and products constructed from such webs are generally disclosed. The fibrous webs having the security image also contain a binder composition that strengthens the web without significantly affecting the ability to see security image. The application of a binder composition to a watermarked or shadow marked web can be achieved without affecting the ability to see the security image formed by the watermark or shadow mark. In one embodiment, the present invention is generally directed to medical packaging substrates having security features, such as watermarks or shadow marks, in at least one surface of at least one fibrous web of the substrate.
Claims20
A method for forming a nonwoven web, the method comprising:
- forming a suspension of fibers into a fibrous web, the suspension comprising a cellulosic fibrous material, wherein the fibrous web has a first thickness;
- forming a security image in the fibrous web, wherein the security image is defined by portions of the web having a second thickness that differs from the first thickness such that the security image can be seen by a person;
- and
- impregnating the fibrous web with a binder composition;
- wherein the nonwoven web has a Gurley porosity of from about 0.1 to about 120 seconds per 100 cubic centimeters.
A medical packaging substrate comprising a fibrous web formed from a cellulosic fibrous material, wherein the fibrous web has a first thickness, and wherein the fibrous web defines a security image having a second thickness that differs from the first thickness, and further wherein the fibrous web is saturated with a latex saturant, the saturated fibrous web having a Gurley porosity of from about 0.1 to about 120 seconds per 100 cubic centimeters.
A method for sterilizing an item, the method comprising:
- sealing the item within a medical packaging substrate, wherein the medical packaging substrate is formed from a cellulosic fibrous material, wherein the cellulosic fibrous material defines a fibrous web having a first thickness, and wherein the fibrous web defines a security image having a second thickness that differs from the first thickness, and further wherein the fibrous web is saturated with a latex saturant;
- and
- contacting the medical packaging substrate with a sterilizing gas.
A method for forming a medical packaging substrate, the method comprising:
- forming a suspension of fibers into a fibrous web, the suspension comprising a cellulosic fibrous material, wherein the fibrous web has a first thickness;
- forming a security image in the fibrous web, wherein the security image is defined by portions of the web having a second thickness that differs from the first thickness;
- and
- impregnating the fibrous web with a binder composition;
- and
- wherein the nonwoven web has a Gurley porosity of from about 0.1 to about 120 seconds per 100 cubic centimeters.
Dependencies are inferred from the claim text.