Possibly the most comprehensive edge banding tutorial in history

Author: Since Handmade Leather Art Taobao Store: https://s.click.taobao.com/mHH1YNw In most handmade leather goods using vegetable tanned leather as raw materialleather goods, edge processing can reflect the production style, improve the grade of the finished product, and increase durability and ornamental value. Proper edge processing requires not only an understanding of the properties of the leather itself (including its tanning method, tannin type, post-treatment process, density, grease, water absorption, etc.), but also the tools for edge processing. (For example, the mesh number of the grinding tool, the type of edger), and the role of the auxiliary reagents used.

Usually on the Internet Most of the edge banding tutorials are really a set of processes for a certain kind of leather or a certain type of leather. The steps always start with how to do it and then the next. However, for different leather materials, different polishing tools, and different reagents, the results obtained by using the same set of polishing techniques are not the same. Even for the same kind of leather, due to individual differences in each piece, the edge sealing methods used are different. Whats more, different parts of the same piece of leather should also be treated with different methods. Otherwise, not only will the best edge sealing effect not be obtained, but in many cases, the leather being worked on will be destroyed, leading to the failure of the entire work.

Normal seal Side

This dozen This time Tangle breaks the rules and no longer simply talks about a certain routine, but helps everyone analyze each specific factor that will affect the final effect of edge sealing. So that when you encounter a specific situation again, you can specifically judge what operations should be done. 1. As a tutorial, first of all, before understanding edge sealing, we must first know, what is vegetable tanned leather edge sealing?

Vegetable tanned leather edge banding It is a treatment method for the edges of vegetable tanned leather, making the edges durable and beautiful through polishing. The basic principle is to gradually polish the leather edge with a series of grinding tools with higher mesh numbers, and use different polishing reagents to finally make the leather edge reach a certain level of durability and beauty.

And leather We can also analyze the impact of properties on edge sealing in terms of density, grease, water absorption, edge sealing & base trimming, waxing and tannin type. 1. Density The density of leather is undoubtedly the most intuitive factor that affects the difficulty of edge sealing for novices. The higher the density of leather, the less difficult it is to polish and the higher the polishing efficiency. The density of the leather can be identified by touching and identifying the tightness of the mesh layer on the back of the leather. Excluding the thickness factor, usually the harder the leather, the tighter the density.

Meat noodles for Leather with a higher density can be polished and leveled with a low mesh number, which can make subsequent high-grit polishing more efficient. However, if it is a leather material with a low density, it is not recommended to perform excessive low-grit polishing, which may easily cause the leather edge to collapse, lack of flesh, etc. Usually, you can first use water and a reagent with certain filling and bonding properties similar to a bed surface treatment machine to polish and press the skin edge to increase its edge hardness and density, and then polish it accordingly.

Flesh surface polishing Since the first half of 2016, I have conducted a real edge-banding speed experiment on 4 types of leather materials with 40 leather friends of different levels, and used the 2*2 attribution analysis method to eliminate many. The results of the experiment were unexpected and relatively well-knownThe two Japanese leather materials did not win because of their high price and outstanding reputation (only in terms of speed). On the contrary, the dense and hard Italian Double Butt was much faster than the other comparison leather materials in terms of edge sealing speed for the entire crowd.

2. Grease The grease in the leather will also affect the edge sealing speed of the leather, as well as the color and brightness of the leather edge after edge sealing. The more grease the leather has, the less difficult it is to seal the edges and the less it relies on edge sealing reagents. Therefore, for some leather materials that are short of oil, the oil can be replenished on the entire piece before operation, making subsequent operations easier and easier.

Left Mbox, The grease on the right yellow-brown leather will also affect the color of the edge after edge sealing. The leather with sufficient grease will have a darker color after edge sealing. After edge sealing, there will be an obvious sense of layering, which will add a lot of help to the style of leather goods. Although leather with poor oil content can also be dyed to increase the edge color, it is still different from the naturally deepened oil color.

Double butt dye Side 3. The water absorption of water-absorbent leather will affect the absorption of polishing reagents and the loss rate of grease during the polishing process. Leather materials with higher water absorption rates and faster water absorption rates are also more likely to lose grease. Therefore, although the operation difficulty is greatly reduced during operation, you need to pay careful attention to the total amount of water and the number of passes. Note that no matter how good it is, There is also an upper limit to the total number of times leather can absorb water and evaporate repeatedly.

Left horse rein There are many different methods for the buttero leather back sealing process. One part is to use wax on the mesh of the leather.The other part is to use various hardening or filling agents to penetrate into the leather and then polish it. However, no matter which method is used, the flesh surface of the leather will become smooth and beautiful, making it easier to operate. However, after pressing, polishing, hot pressing, and sealing wax, the flesh surface looks firm, but it is not really tough. When water or other polishing agents enter the leather, the leather can easily return to a loose state, and it can even lead to operational errors. But if there is no water at all, the leather will lose its flesh very quickly during polishing. Therefore, when sealing the edges of leather materials with back seals, water needs to be applied but do not apply too much water.

Normal buttero and Comparison of bacon-rubbed surfaces 5. Late-stage wax-treated horse rein leather and wax-rubbed leather are all leathers that have been soaked in wax. The wax will penetrate the leather and enter the fibrous tissue, increasing the oiliness of the tissue and making the leather tighter. and density. At the same time, during the practical process, the wax will gradually lose its luster during constant polishing, making the leather last longer and more attractive. When such leather is edge-sealed, due to the presence of grease and wax in it, the smooth polishing operation will become extremely simple, and it is very easy to polish the texture. However, it should be noted that if you pursue an extremely good edge-sealing effect, you must It should be noted that the basic leveling stage of this type of leather is fully effective. Because there are wax components in it, it is easy to fill the friction surface of the grinding tool, causing the mesh number of the grinding tool to increase, thus reducing the grinding efficiency and entering the polishing stage in advance. In this way, although the sealed edge is bright, it is still blurry. You can see small pits and bruises, and in severe cases the whip will be uneven.

Horse reins and Comparison of waxed edge sealing 6. Different types of tannin extract for leather. Different types of tannin extract will affect many factors of leather, including density, grease, etc. It is more intuitive to directly discuss the impact of other factors on edge sealing, so here we only discuss them. Discuss the effect of tannin on the hardness and plasticity of leather. The leather tanned by unobstructed oak tannins is strong and hard, but has poor plasticity. This type of leather is easier to edge seal and will have a very dense texture when polished. It also has good grease properties. The mimosa-based tannic acid tannins will make the leather slightly softer, but the density is not loose, and the oil is much inferior to the oak-based tannins. The plasticity of the leather is moderate, and it will show relatively average performance during the polishing and trimming process. , the brightness and difficulty of the edge banding effect are relatively moderate. Acacia seriesThe leather of tannins has the strongest plasticity, but its density is looser, and its grease is outstanding. It has the strongest plasticity and is the easiest to produce results when polished. However, it is also the type of leather that is most likely to be over-polished, so you need to pay attention when operating it. and amplitude to prevent over-sanding.

Tochigi, Double butt, horse rein meat noodles

Edge sealing