It is best to divide the process into three simple steps to make it easier for you to understand. The first step involves melting and then mixing the lip gloss ingredients using equipment such as pneumatic diaphragm pumps, filling up a tube with the mixture and finally packing it up before it is sold. The mixture does not have to be poured into tubes immediately, meaning that it can be stored away for use later on. Depending on how you intend to market the lip gloss, it can be packaged for sale in a number of ways after it has been poured into tubes.
Step 1: Creating A Molten Mixture
- Since the lip gloss is made using different types of ingredients, they are melted first and then mixed together separately. These include a mixture of fats and waxes, a mixture of oils and a solvent mixture. Separate ceramic or stainless steel containers are used to heat the individual mixtures.
- A mixture of the colour pigments, liquid oils and solvent is then created. To ensure that the lipstick feels smooth, the pigment is finely ground by passing the mixture through a rolling mill. The mixture must be mechanically worked as the grinding introduces air into the mixture of colour pigments and oils. Some manufacturers use vacuums to draw air from the mixture as it is stirred for hours.
- To achieve consistency and a uniform colour, the ground oil and pigment mixture is added to a mass of hot wax. At this point, the mixture is strained and can be emptied into pans and store away for use in the future or moulded into lipstick.
- The mixture’s temperature is maintained and stirring continues, to push air out, if the mixture is to be used in making lipstick immediately. Before using any mixture that was initially help in storage, it must be heated up once more, inspected for colour uniformity and modified to meet the current specifications before being held at a certain temperature while stirring continues until it is ready to be moulded.
The use of different colour pigments means that batch production is favoured in the manufacture of lipstick. The popularity of the colour/shade determines the batch size and with it, the number of lipstick tubes that need to be produced at any given time. The choice between manual and automated production is determined by these factors.
Pouring The Liquid Mixture Into Moulds
- The mixture can be moulded after is completely mixed and free of any air pockets/bubbles. Even though high capacity melting equipment is used to stir up the mixture and keep it from solidifying when large volumes are required, a number of different equipment configurations can be used depending on what is available to the manufacturer. A manually operated melter is used to stir the mixture and keep the temperature high enough to keep it from solidifying in the production of smaller batches that are produced manually.
- The molten mixture is then poured into a tube that is made up of a shaping section that is tightly attached to a metal or plastic base. When pouring, the bottom of the tube is positioned at the top, meaning that it sits up-side down. Any excess mixture is scrapped off the tube.
- The bottom of the moulding tubes is sealed after they are separated from the moulds once they have been cooled down automatically or in a refrigeration unit, in manual set-ups. To improve the finish and seal the pin hole, the tubes of lipstick are then flamed manually by hand or passed through a flaming cabinet. Where necessary, the lipstick is reworked to eliminate any mould separation lines, air holes and flaws discovered during the visual inspection.
Placing Labels On The Lipstick And Packaging It For Sale
- The tubes of lipstick can be labelled and packaged for sale after the mould is retracted and a cap put in place. Applied through an automated process, labels are used to identify respective batches. More emphasis is placed on the appearance and quality of lipstick than on that of lip balm products. Except for batches meant for experimental or test purposes, lip balms are produced through automated processes always. They are produced through a much simpler process which entails the pouring of the hot mixture into retracted tubes, which are then capped automatically.