Packaging and process for the sterile packaging of objects for medical, pharmaceutical or cosmetic applications
Packaging for the sterile storage and transport of objects for medical, pharmaceutical or cosmetic applications and a packaging process are provided. The packaging includes at least one bag made of a first and a second web, bonded to one another, a feature thereof being that the first web consists of a selectively permeable nonwoven fabric and that the second web consists of a laminated film with at least three layers, where the first layer is a polymer film arranged on the external side of the bag, the second layer is a lamination adhesive and the third layer is a polymer film arranged on the internal side of the bag. At least one of the layers of the second web includes one or more pigments. In an 8-bit greyscale image, the seal seam, imaged in transmitted light and contrast-standardized, is depicted within a greyscale value range of 50-200.
1. Packaging for the sterile packaging of objects for medical, pharmaceutical or cosmetic applications, comprising:
a first web;
a second web; and
a seal seam bonding the first and second webs to one another to define a portion of a bag, the bag having an internal side and an external side,
the first web consists of a selectively permeable nonwoven fabric,
the second web consists of a laminated film with a first layer, a second layer, and a third layer, the first layer is a polymer film arranged on the external side, the second layer is a lamination adhesive, and the third layer is another polymer film arranged on the internal side, the first layer having a melting point that is above a sealing-initiation temperature of the third layer by at least 20° C.,
at least one of the first, second, and third layers comprising a pigment,
wherein the seal seam, in an 8-bit greyscale image recorded in transmitted light and contrast-standardized, is within a greyscale value range of 50-200, and
wherein the seal seam has a remission τ vis , measured in accordance with DIN 5033-1:2009-5 in remission mode with 2° observer, that is 10%-40%.
2. The packaging according to claim 1 , wherein the polymer film of the first layer is a polyester film or polyamide film, and wherein the polymer film of the third layer is made of a material selected from a group consisting of polyethylene homopolymers, polyethylene copolymers, polypropylene homopolymers, polypropylene copolymers, polyester homopolymers, and polyester copolymers.
3. The packaging according to claim 1 , wherein the selectively permeable nonwoven fabric is a microfibre nonwoven fabric made of a material selected from a group consisting of high-density polyethylene (HDPE), polypropylene (PP), and polyethylene terephthalate (PET).
4. The packaging according to claim 1 , wherein the polymer film of the third layer is made of a material selected from a group consisting of high-density polyethylene (HDPE), medium-density polyethylene (MDPE), low-density polyethylene (LDPE), and linear low-density polyethylene (LLDPE).
5. The packaging according to claim 1 , wherein the polymer film of the first layer is a polyester film or a polyamide film that is free from the pigment.
6. The packaging according to claim 1 , the polymer film of the first layer is a polyethylene terephthalate (PET) or polybutylene terephthalate (PBT).
7. The packaging according to claim 1 , wherein the seal seam exhibits greyscale values which are at least 30 units above greyscale values of a region surrounding the seal seam.
8. The packaging according to claim 1 , wherein the portion of the bag defined by the seal seam comprises a closure of a filled bag.
9. The packaging of claim 8 , further comprising a sealing or adhesive bonding connecting the first and second webs to one another to define remaining portions of the bag.
10. The packaging according to claim 1 , wherein the seal seam exhibits a homogenous colour.
11. The packaging according to claim 1 , wherein the seal seam has a strength that is at least 20 N/15 mm measured in accordance with DIN EN 868-5:2009 Annex D.
12. The packaging according to claim 1 , wherein the first web has a puncture resistance measured in accordance with DIN EN 14477:2004 at test velocity 100 mm/min and with 0.8 mm tip diameter that is at least 10 N and/or wherein the second web has a puncture resistance measured in accordance with DIN EN 14477:2004 at test velocity 100 mm/min and with 0.8 mm tip diameter that is at least 4.5 N.
13. The packaging according to claim 1 , further comprising another bag surrounding the bag.
14. The packaging according to claim 1 , wherein the remission τ vis of the seal seam exhibits a difference of 30-75 percentage points to a remission τ vis of the first web measured in accordance with DIN 5033-1:2009-5 in remission mode with 2° observer.
15. The packaging according to claim 1 , further comprising a tub or tray arranged in the bag.
16. The packaging according to claim 15 , further comprising one or more objects for medical, pharmaceutical or cosmetic applications in the tub or tray.
17. The packaging according to claim 15 , wherein the tub or tray comprises a protective covering of another selectively permeable nonwoven fabric sealed or adhesive bonded thereto.