Materials for making lipstick tubes

Since 2016, the make-up market has become popular in various kinds of make-up products. Therefore, it has driven the overall market of make-up upstream packaging material factories. There are many kinds of make-up. In this issue, we mainly introduce the packaging material of lipstick tubes for For your reference, a review of lipstick packaging materials was released some time ago, but they are all superficially extensive things, and only a preliminary understanding of lipstick tube packaging materials. Today we will talk about lipstick tube packaging materials more comprehensively. knowledge.

Lipstick tubes are the most complex of all cosmetic packaging materials. Lipstick tubes are composed of multiple components. Functional packaging composed of different materials can be divided into volatile and non-volatile types (airtight/non-volatile) Airtight), plus most of the filling is automatic filling by machines (front filling, back filling, direct filling, etc.), including the filling method of the lipstick tube, the combination of different parts, the tolerance control is not good, or the design is not good Reasonably, even if there is a mistake in the way the lubricating oil is applied, it will cause downtime or malfunction.

Acrylic tube

1. Manufacturing process

1. Basic material lipstick tubes are divided into all-plastic lipstick tubes, aluminum-plastic composite tubes, etc. Among them, the commonly used plastic materials are PC, ABS, PMMA, ABS+SAN, SAN, PCTA, PP, etc., and the commonly used aluminum models are 1070 and 5657 wait. There are also users who use zinc alloy, sheepskin and other materials as lipstick tube accessories in order to show that the product temperament is consistent with its brand tone. 2. Molding process The plastic material of the lipstick tube is mainly based on the injection molding process, such as the cover, base and related accessories in the center beam core. 3. Surface treatment There are many treatment processes available for the surface of lipstick tubes. For plastic parts, surface treatment processes such as spraying, electroplating, evaporation, laser engraving, and inserts can be used, while aluminum products can be oxidized by electroplating and anodic treatment processes. 4. The cover and base of the lipstick tube with graphic printing can be processed with graphic information by silk screen printing, bronzing/silver printing, pad printing, heat transfer printing, water transfer printing and other processes according to user needs.

2. Product structure

1. Product classification: divided by components: cover, bottom, center beam core (center beam, bead, fork and spiral), etc., among which the center beam is generally made of aluminum products, which have better hardness and metal texture after anodizing. There are also injection molded plastic materials. Inner diameter of beads: 8.5mm, 8.6mm, 9mm, 9.8mm, 10mm, 11mm, 11.8mm, 12mm, etc.; bead ribs: 4 ribs, 6 ribs, and 8 ribs, etc. According to product structure: traditional lipstick case, slender type, lipstick/lip gloss box, lip balm, vermicelli, lip oil, etc. Filling method: bottom pouring, top pouring

2. Lipstick tube caps are generally aluminum caps or acrylic caps, ABS caps, etc.

3. The base The base is generally made of acrylic or ABS plastic, and some use aluminum as the base material. There are also some suppliers who add heavy iron to the acrylic tube in order to increase the feel. However, if there is a problem with the heavy iron glue, it is equivalent to adding a risk to the inside of the lipstick tube. In addition, if the vibration during transportation is degummed, it will cause a quality accident. The customer experience is even worse.

4. Center beam core The center beam core is the core component of the lipstick tube, which is equivalent to the heart of the product. Whether the lipstick tube product has a good customer experience or not, the basic functions are all in the experience of the center beam core, which carries the entire The torque, smoothness, blocking force, insurance force, bead bearing force and other functions of lipstick tube products.

The bead fork screw is generally a double helix structure with a long pitch, and the travel distance of the beads after one rotation is relatively large, so some users also call it a fast screw. The bead screw is the core part of the lipstick tube. The acrylic tube is the bead, the fork, the spiral, the bead screw and the lubricating oil constitute the core of the lipstick tube. The bead (cup) is the part of the cup that directly contacts the lipstick meat, the fork (fork) the travel track of the beads in the straight direction, and the travel track of the spiral (Spiral) beads in the direction of the spiral rise. The acrylic tube cooperates with the fork to achieve the purpose of the rotation process and the upward movement of the beads.

The bead screw is a bit like a pump core, but it is more complicated than the pump core. Some manufacturers say that the bead screw is designed without lubricating oil, but it is not widely used at present. The standardized drawing of the bead screw must be standardized, otherwise, the size will not be accurate. After assembly, there will be more complicated factors. The result can be expected. The injection molding material must pass the compatibility verification of the material body, otherwise compatibility problems will occur. It is not good if there is a problem with the screw up and down, and the bead fork screw is the most important thing.