Method of creating multiple patterns

Patent metadata

Field	Value
Publication number	US-2018147828-A1
Application number	US-201715824643-A
Country	US
Kind code	A1
Filing date	Nov 28, 2017
Priority date	Nov 28, 2016
Publication date	May 31, 2018
Grant date	—

Abstract

A method of continuously imparting different visually detectable features to a plurality of articles is provided. The method includes providing a printing unit having two or more printing rolls each having a visually detectable pattern, wherein the printing process may fit rolls that are less than or equal to a maximum circumference. The method further includes providing a web having a print pitch that is greater than one half the maximum circumference, providing a first roll wherein the roll circumference is equal to the product pitch, and providing a second roll characterized in that the roll circumference is equal to either 0<X<1 where X is chosen such that 1/X≠an Integer or 1<X<C max /P, wherein X is a multiple of the first roll circumference, C max is the largest circumference allowable, and P is the product pitch.

First claim

What is claimed is:

1 . A method of continuously imparting different visually detectable features to a plurality of articles, said method comprising:
Providing a printing unit comprising of two or more printing rolls each having a visually detectable pattern, wherein the printing process may fit rolls that are less than or equal to a maximum circumference; providing a web comprising a print pitch that is greater than one half the maximum circumference; providing a first roll wherein the roll circumference is equal to the product pitch; providing a second roll characterized in that the roll circumference is equal to either 0<X<1 where X is chosen such that 1/X≠an Integer or 1<X<C max /P, utilizing the printing unit on the web wherein X is a multiple of the first roll circumference, C max is the largest circumference allowable by the printing unit, and P is the product pitch; and imparting the visually detectable patterns to the web by means of the two or more rolls.

2 . The method according to claim 1 , characterized in that each of the first roll and the second roll comprises a visually detectable pattern defining a print length, wherein the print length is characterized in that the absolute of (X−1)/(print length/product pitch)) is greater than 1.

3 . The method of claim 1 , wherein the method further comprises one or more additional rolls wherein each of the one or more additional rolls are characterized in that each roll circumference is equal to either 0<X<1 where X is chosen such that 1/X≠an Integer or 1<X<C max /P,
wherein X is a multiple of the first roll circumference, C max is the largest circumference allowable by the printing unit, and P is the product pitch.

4 . The method of claim 3 , wherein at least one of the one or more rolls is an embossing roll.

5 . The method of claim 3 , wherein at least one of the one or more rolls is a print roll.

6 . The method of claim 1 , wherein each roll prints a visually detectable feature that is a printed and/or embossed pattern, a printed and/or embossed image, a colour or a combination thereof.

7 . The method according to claim 1 , characterized in that in said web comprises a first product pitch having a first pattern comprising a first visually detectable feature and a second visually detectable feature and a second product pitch having a second pattern comprising the first visually detectable feature and the second visually detectable feature.

8 . The method according to claim 1 , wherein the web is a portion of an absorbent article such as a diaper, a sanitary napkin, a panty liner, an incontinence protector or the like.

9 . The method according to claim 1 , wherein the web is a wrapping sheet, such as a single wrap or an easy wrap.

10 . The method according claim 1 , wherein the web is a release liner.

11 . The method according to claim 8 , characterized in that said visually detectable feature is provided on at least one component of said absorbent article, such as a topsheet, a backsheet, an acquisition layer or an absorbent element.

12 . The method according to claim 8 , characterized in that said visually detectable feature is provided on at least two components of said absorbent article, said visually detectable feature on the first component being different from said visually detectable feature on the second component.

13 . A method of continuously imparting different visually detectable features to a plurality of articles, said method comprising:
Providing a printing unit comprising of two or more printing rolls each having a visually detectable pattern, wherein the printing process may fit rolls that are less than or equal to a maximum circumference; providing a web comprising a print pitch; providing a first roll wherein the roll circumference is equal to the product pitch; providing a second roll characterized in that the roll circumference is equal to either 0<X<1 where X is chosen such that 1/X≠an Integer or 1<X<C max /P, wherein X is a multiple of the first roll circumference, C max is the largest circumference allowable by the printing unit, and P is the product pitch; and imparting the visually detectable patterns to the web by means of the two or more rolls; wherein the method is characterized in that each of the first roll and the second roll comprises a visually detectable pattern defining a print length, wherein the print length is characterized in that the absolute of (X−1)/(print length/product pitch)) is greater than 1.

14 . The method of claim 13 , wherein the method further comprises one or more additional rolls wherein each of the one or more additional rolls are characterized in that each roll circumference is equal to either 0<X<1 where X is chosen such that 1/X≠an Integer or 1<X<C max /P,
wherein X is a multiple of the first roll circumference, C max is the largest circumference allowable by the printing unit, and P is the product pitch.

15 . The method of claim 14 , wherein at least one of the one or more rolls is an embossing roll.

16 . The method of claim 14 , wherein at least one of the one or more rolls is a print roll.

17 . The method of claim 13 , wherein each roll prints a visually detectable feature that is a printed and/or embossed pattern, a printed and/or embossed image, a colour or a combination thereof.

18 . The method according to claim 13 , characterized in that in said web comprises a first product pitch having a first pattern comprising a first visually detectable feature and a second visually detectable feature and a second product pitch having a second pattern comprising the first visually detectable feature and the second visually detectable feature.

19 . The method according to claim 13 , wherein the web is a portion of an absorbent article such as a diaper, a sanitary napkin, a panty liner, an incontinence protector or the like.

20 . The method according to claim 13 , wherein the web is a wrapping sheet, such as a single wrap or an easy wrap.

Assignees

• Procter & Gamble

Inventors

• Blanco Torres Priscila
• Kindschuh Olivia
• Maldonado Clarissa
• Warner Alrick Vincent

Classifications

• B41F33/0036 Primary

  Devices for scanning or checking the printed matter for quality control · CPC title

• A61F13/84

  Accessories, not otherwise provided for, for absorbent pads · CPC title

• B41F5/24

  for flexographic printing · CPC title

• A61F13/15772

  Control · CPC title

• B41F5/18

  using one impression cylinder co-operating with several forme cylinders · CPC title