| 水性聚氨酯植绒胶-静电植绒工艺简介 |
| 添加时间：2017/10/16 16:00:35 浏览次数： |
| 1.上浆。根据产品和底材性质,选择不同性能的粘合剂。根据不同材料和性能可以选用水性聚氨酯粘合剂或丙烯酸类粘合剂。如橡胶、塑料、钢材、玻璃、木材等为底材时，主要考虑粘接牢度。服装用而料,既要考虑耐水洗牢度,又要考虑手感柔软以及透气、透湿性能等。粘度太小植上的绒毛可能倾斜,粘度太大则妨碍植入深度,降低强度。涂层量大,会使手感差,且延长烘燥时间;涂层量少,则摩擦牢度降低。调整适当的粘度和涂层量才能确保植绒质量。 1. sizing. Adhesives with different properties are selected according to the properties of the product and the base material. Waterborne polyurethane adhesive or acrylic adhesive can be chosen according to different materials and properties. For example, rubber, plastics, steel, glass, wood and other substrates, mainly consider the bonding fastness. Clothing should be used, not only to consider the color fastness to washing, but also to consider soft feel and breathable, moisture permeability and so on. If the viscosity is too small, the villi on the implant may tilt and the viscosity is too large to hinder the depth of implantation and reduce the strength. When the coating amount is large, the handle is bad, and the drying time is prolonged; the friction fastness is reduced when the amount of coating is little. Adjusting proper viscosity and coating quantity to ensure flocking quality. 上浆方式目前主要采用辊筒法和刮刀法。对于植花(局部植绒),则采用圆网或平网印浆法对花纹部印浆,要求均匀、边界清晰,不能有起泡或空白点,植绒后形成植绒花纹。 The roller method and scraper method are mainly used in sizing. For planting flowers (local flocking), the round screen or flat screen printing method is used to print the pulp of the pattern, uniform requirements, clear boundaries, no blisters or blank spots, flocking pattern after flocking. 2.植绒。植绒方式主要有提升式、下落式、侧植式和上下拼植式四种。提升式:绒毛在输送带上进入电场,在静电作用下绒毛自下而上飞升插入底材粘合涂层中粘合剂中。提升法被植物在上方,下落法加工物在下方。提升法需要两条输送装置,即被加工物输送和绒毛输送,结构复杂,传送时张力较大,若强力不大的织物就很难加工。不连续生产,则提升法比较好,因为绒毛在静电场作用下一部分植入粘合剂中,多余的绒毛会自然落下,植绒表面浮绒较少。下落法则另加一个吸绒装置,将在绒面的浮绒吸去,目前多数植绒机均采用下落式。侧植式适用于片块状物体的植绒,提升下落拼植法适用于线状物体的植绒。 2. flocking. Flocking mainly has lifting type, falling type, side planting type and top and bottom planting type four. Lifting type: the fluff enters the electric field on the conveyor belt, and the fluff rises from bottom to top and inserts into the adhesive in the adhesive coating of the base material under the static electricity. The lifting method is placed above the plant, and the falling object is underneath. Lifting method requires two conveying devices, that is, conveying and fluff conveying, the structure is complex, the tension is greater when the transmission, if the fabric is not strong, it is difficult to process. Discontinuous production, the lifting method is better, because the villi in the electrostatic field under the action of some parts into the binder, the excess villi will naturally fall, flocking surface fluff less. Drop rule plus a suction device, will be in the suede floating suction, most flocking machines are falling. Side planting is suitable for flocking of bulk objects, lifting falling and planting method is suitable for flocking of linear objects. 植绒室的心脏是高压静电发生器。通常要求直流电压达20-200千瓦,两电极之间的距离按公式E二V/H可求得,式中:E为电场强度(v/m)；v为极板电压(v)；H为极板短离(m),一般为10厘米以内,电场强度1-5千瓦/厘米,绒毛以100-200厘米/秒的速度垂直插入底材表面的粘合剂中。为了确保车速较快时的植绒质量，可采用多套静电发生器,或者增加打击振动装置,来补充静电力的不足。 The heart of the flocking chamber is a high voltage electrostatic generator. Usually require DC voltage up to 20-200 two kilowatts, the distance between the electrodes can be obtained according to the formula of E two V/H, in which E is the electric field strength (v/m); V (V); voltage H (m), from the short plate is generally less than 10 cm, the electric field strength 1-5 kW / cm, villous to 100-200 cm / sec vertically inserted into the bottom surface of the adhesive. In order to ensure the flocking quality when the vehicle speed is faster, more static generators can be used, or more striking vibration devices can be added to supplement the static electricity shortage. 3.热固。植绒完毕后需进行热处理,以使绒毛、粘合剂和底材牢固结合。一般都有两个阶段:预烘和焙烘,具体视粘合剂种类而定。加热方式也有多种,通常采用热风循环方式较好,既可达到粘合剂交联温度,又能使粘合剂中水分尽快脱离。烘燥温度还应注意到底材性质,防止材质在较高温度下会变形。热处理在烘箱中完成,其质量对植绒牢度影响较大。为了确保热处理的温度和时间,若车速较快时,应适当加长烘箱长度。 3. thermosetting. After flocking, heat treatment is needed to make the fluff, adhesive and base material firmly combined. Generally there are two stages: pre baking and baking, depending on the kind of binder. There are many kinds of heating methods, and the hot air circulation method is usually adopted, which can not only achieve the cross-linking temperature of adhesive, but also make the moisture in adhesive release as soon as possible. Drying temperature should also pay attention to the nature of wood, to prevent material deformation at higher temperatures. The heat treatment is finished in the oven, and its quality has great influence on the flocking fastness. In order to ensure the temperature and time of heat treatment, if the speed is fast, the length of the oven should be lengthened appropriately. 4.刷毛。在植绒后虽吸去浮绒,但在间隙中还有残余绒毛,一般采用毛刷逆底材运动走向的方式,进行一次刷毛清洗。也有采用机械拍打、吹风等方式相结合进行处理,则效果更佳。如不需后整理加工,则刷毛后即可得到成品。 4. bristles. After flocking, although suction floating velvet, but there are residual villi in the gap, the general use of brush reverse base movement direction of the way, a brush cleaning. Also with mechanical pat, blow and other ways of combining treatment, the effect is better. If the finishing process is not needed, the finished product can be obtained after brushing. 5.后整理.后整理的目的是锦上添花和提高产品附加值。例如:全面植绒(又称满地植绒)虽然赋予产品绒的风格,但美中不足色彩单一,于是采用印花(或转移印花)加工方法,印上各种彩色图案,而成为印花植绒产品；通过轧辊热压(轧辊上刻有凸型图案)压花(轧花),使局部绒毛在高温下变形固化,成为轧花植绒产品;利用喷管上若干小孔,喷出过热蒸汽使绒毛受热变形,且喷汽口横向有规则地往复与织物纵向直线运动,形成了一定形状的几何图案,成为喷花植绒产品;利用磨毛工艺,将植绒织物表面绒毛磨细,达到仿魔皮绒效果;采用化学处理法(仅对复合纤维)将植绒产品浸渍在溶液中,溶去“海”部分纤维,形成仿桃皮绒、仿丝绒产品,等等。以上仅列举了一部分后整理方法。总的来说目前后整理方法很多,但开发力度还不够,有很多课题需要我们探索研究。 5. finishing. Finishing is aimed at icing on the cake and improving the added value of products. For example: a comprehensive flocking (also known as Montreal flocking) giving products cashmere style, but in want of perfection single color, so the use of printing (or transfer printing) processing method, printed with various color patterns, and become the flocking products; through hot pressing roller (roller with convex embossed pattern), the local fluff (crimped) curing deformation under high temperature, be ginning flocking products; using the number of holes on the nozzle, spray the villi in superheated steam heat distortion, steam jet and horizontal reciprocating regularly and fabric vertical linear motion, forming a geometric pattern shape, become stencil printing flocking products; the sanding process, the flocking fabric surface fluff grinding to imitation magic suede effect; with chemical treatment method (for composite fiber) will be flocking products are immersed in a solution, solution to the "sea" part of the fiber formation, imitation peach, velvet products, etc.. The above lists only a part of finishing methods. Generally speaking, there are a lot of finishing methods, but the development is not enough. There are many topics we need to explore. |
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