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Wrapper for soap bar

a soap bar and wrapper technology, applied in packaging, packaging paper, transportation and packaging, etc., can solve the problems of not being able to meet the needs of mass production of soap bar wrappers, and a large amount of adhesive is not used for adhesion or sealing

Inactive Publication Date: 2016-11-03
CONOPCO INC D B A UNILEVER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a sheet of laminate made up of a paper component and a plastic component. The paper component has three adhesive-coated edges and a fourth edge. The plastic component has three adhesive-coated edges that match the adhesive-coated edges of the paper component. The sheet can be separated into individual wrappers, each containing one of the adhesive-coated edges and a part of the paper component. The invention is particularly useful for making soap bar wrappers. The adhesive-coated edges allow for easy separation and resealing of the wrappers.

Problems solved by technology

However, much of the adhesive is not utilised for adhesion or sealing.
However, this method is not suited for a mass scale production of wrapper for soap bars.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

Comparative Performance of a Conventional Laminate Against a Preferred Laminate

[0054]The specifications and properties of a conventional and a preferred laminate are given in table 1. The observations are also included therein.

TABLE 1Specifications / propertyConventionalPreferredPaper typePoster paperPoster paperwith TiO2with TiO2Paper grammage40g / m240g / m2Plastic componentReverse printedReverse printedPolyethylene-Polyethylene-terepthalateterepthalateThickness of the8μm8μmplastic componentWrapper length (i.e.,175mm175mmdistance between firstand second edges)Wrapper width (i.e.,130mm130mmdistance between thirdand fourth edges)AdhesiveHot meltHot meltadhesiveadhesiveAdhesive appliedPaper componentOnly 3 portionsfully coatedof papercomponent coatedPatternNo patternKnurled patternAdhesive grammage15g / m25g / m2Width of first coatedNA25 mm; entireportionportion from thethird to thefourth edge wascoatedWidth of secondNA21mmcoated portionWidth of third coatedNA21mmportionLength of secondNA50mmc...

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PUM

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Abstract

Disclosed is a sheet of laminate comprising a paper component laminated to a plastic component, said sheet comprising, and severable into, plurality of discrete wrappers, each comprising opposed first (1) and second edges (2) and opposed third (3) and fourth edges (4), wherein the paper component of each wrapper comprises: (i) a first adhesive-coated portion (6) located along substantially the entire length of said first edge; (ii) a second adhesive-coated portion (7) located between said first and second edges and along a part of the length of said third edge; and, (iii) a third adhesive-coated portion (8) located opposite said second portion along a part of the length of said fourth edge.

Description

FIELD OF THE INVENTION[0001]The invention relates to wrappers for bars of soap or like articles.BACKGROUND OF THE INVENTION[0002]Soap bars are generally packaged in paperboard cartons and paper composites (laminated sheet material) usually along with a paperboard stiffener. The paperboard generally has a barrier layer of plastic. The carton provides a rectangular shape for stacking and protects the soap bar until use. The wrapper and stiffener combination provide a cost effective alternative to cartons.[0003]A paper composite is made of a layer of paper along with one or more layers of a plastic material. The paper component provides stiff substrate to and add strength and also provides a surface for sealant deposition. The plastic film provides decoration features and moisture and fragrance barrier properties. The wrapper is the most common form of package for soap bars.[0004]Bars of soap are used across the world. They are available in various shapes although the sizes are more or...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65D65/14D21H27/10D21H19/80B65D75/14B65D85/00
CPCB65D65/14B65D75/14D21H27/10D21H19/80B65D85/70D21H19/00
Inventor JANARDHANA, SRIDHARTEWARI, ADESH
Owner CONOPCO INC D B A UNILEVER