Method for affixing labels to soap bars and labeled soap bars produced thereby
OwnerJehuda Malkiinventor
Life of this patent
Estimating the term…
Abstract
A method for applying substantially permanently affixed printed labels to bars of soap which is readily adaptable to a continuous soap production process and labeled soap bars produced thereby are provided. A layer of a suitable wax composition is applied to one surface of soft, moist pre-pressed bars of soap of a selected size and configuration, a correspondingly configured label including opposed rows of perforations is applied to the wax layer, and the soap bars are fed to a soap press where they are pressed and moulded. A second layer of a suitable wax is then applied over the label and the labeled surface of each soap bar to substantially permanently affix the label to the soap bar.
Claims20
A method for substantially permanently affixing a label printed with a desired image to a surface of a bar of soap so that the label remains affixed to the soap as long as the soap is usable, including the steps of:
- (a) forming a soft, moist bar of a selected kind of soap having a selected configuration and a selected size;
- (b) while the soap is still soft and moist applying a selected thickness of a layer of a wax composition compatible with the soap to the surface of the bar of soap to be labeled at a selected temperature and pressure;
- (c) forming a label from a selected sheet material having substantially the same configuration as the surface of the bar of soap and a size that is dimensionally smaller than the surface of the bar of soap and perforating two of the opposite edges of the label to form opposed rows of perforations along said two opposite edges;
- (d) printing the desired image on the label.
- (e) applying the printed label to the surface of the bar of soap on top of the layer of wax composition;
- (f) pressing the soap bar and label in a soap press under sufficient pressure to embed the label in the wax layer and cause soap and wax to fill the perforations, thereby forming rivets extending to the surface of the label;
- (g) applying a selected thickness of a compatible wax composition to cover the entire surface of the soap bar and the label and to contact said rivets at a selected temperature and pressure;
- and
- (h) cooling and drying the labeled bar of soap.
A method for producing a labeled bar of soap wherein the label is substantially permanently affixed to a surface of the bar of soap so that the label remains affixed to the soap until the soap is used up, including the steps of:
- (a) forming a bar of soft, moist soap with a planar rectangular surface;
- (b) while the soap is still moist and soft spraying a layer of a wax composition compatible with the soap on the soap planar rectangular surface;
- (c) forming a rectangular label smaller than the rectangular surface with a row of perforations adjacent to each of the opposed longest edges of the label and printing a desired image on one surface of the label;
- (d) applying a layer of adhesive to the unprinted surface of the label;
- (e) applying the adhesive-covered surface of the label over the wax layer on the soap planar rectangular surface so that the label is surrounded by a margin of wax-covered soap.
- (f) pressing the labeled soft, moist soap in a soap press at a pressure which moulds the soap and causes the label to become embedded in the wax layer and soap and wax to fill the perforations in the label, thereby forming rivets;
- (g) spraying a layer of a wax composition to cover the label, the rivets and soap margin;
- and
- (h) cooling and drying the labeled soap.
A continuous soap production process for producing a large number of bars of soap beating information-carrying labels substantially permanently affixed to at least one surface of each bar of soap, including the steps of:
- (a) mixing flakes of a selected kind of soap with maize starch to form a homogeneous and elastic dispersion;
- (b) in an extruder further mixing the soap dispersion of step (a) and extruding the mixture to form an extrudate having a desired size and shape;
- (c) cutting the extrudate to form a plurality of individual soft, moist bars of soap;
- (d) spraying a surface of each of the soft, moist bars of soap with a selected compatible wax composition at a selected temperature and pressure;
- (e) applying to each wax-covered bar of soap a label sized to fit the surface of the soap and formed of a sheet material compatible with the soap and having a single row of perforations adjacent to two opposed edges;
- (f) feeding each of the label-carrying bars of soft, moist soap into a soap press and applying sufficient pressure to each bar of soap to force soap and wax through the perforations in the label and to mould each soap bar to a desired final shape;
- (g) spraying the labeled surface of each bar of soap with a selected compatible wax composition at a selected temperature and pressure;
- (h), cooling and drying each of the plurality of soap bars;
- and
- (i) continuously repeating steps (a) through (h) until the desired large number of bars of soap bearing information-carrying labels has been produced.
Dependencies are inferred from the claim text.