Mat tortma qutisining siyoh qatlamlarini kesishda{0}}portlovchi chiziqlarning sabablari va ularga qarshi choralar

Mat tortma qutisining siyoh qatlamlarini kesishda{0}}portlovchi chiziqlarning sabablari va ularga qarshi choralar

1. Qalin va mo'rt siyoh plyonkasi

Frosted ink particles are coarse, and the diameter of the additive particles is about 15-30 μm. The thickness of the ink layer after screen printing can reach 100-150 μm, and the surface of the ink film is rough and uneven. In addition, the printing material is a non-absorbent material. Adhesion is poor, so the ink film is thick. It has the characteristics of high brittleness and is prone to burst when subjected to high pressure.

2. Chop etishdan keyin noto'g'ri quritish

Muzlagan siyoh bosib chiqarilgandan so'ng UV-davolash moslamasidan o'tib ketganda, yoritilgan sirt harorati juda yuqori, polimerizatsiya reaktsiyasi davom etadi va siyoh qatlami qattiqlashgandan keyin avtomatik ravishda portlaydi.

3. Kesish va chekinishning noto'g'ri ishlashi-

Kesilgan chuqurlik{0}}kartonning tashqi ko'rinishiga ta'sir qiluvchi asosiy omil. Kesuvchi pichoq-po'lat simni asossiz tanlab olish, noto'g'ri foydalanish va hokazolar siyoh qatlamining portlashining asosiy sabablari, masalan, kesish pichog'ining xiralashishi-dir.

4. Qog'oz bilan noto'g'ri ishlash

Qog'ozning tuzilishi, chop etishdan oldin va chop etish paytida noto'g'ri ishlash ham e'tibordan chetda qolmaydigan omillardir. Qog'ozning juda past sifati yoki qog'ozdagi suv miqdori juda past bo'lsa, qog'ozning mo'rtligini oshiradi va qattiqligini pasaytiradi, bu ham siyoh qatlamining yorilishiga olib keladi. Agar qog'oz namlikka moslashtirilmagan bo'lsa yoki yarim tayyor mahsulotlar noto'g'ri saqlangan bo'lsa, qog'ozning suv miqdori past bo'ladi va yuqori harorat va kalendarlashdan keyin qog'oz mo'rt bo'lib qoladi va undan keyin yorilish oson bo'ladi. bosilmoqda.

Murakkab qatlami portlashining oldini olish

  1. Designing the frosted pattern correctly

Loyihalashda, muzli naqsh imkon qadar qadoqlash qutisining qoliplash joyidan qochishi kerak va u chuqurlik va qolipdan -kesish joyidan kamida 2-3 mm uzoqda bo'lishi kerak, shunda uch oʻlchamli effektni taʼkidlash uchun kesish vaqtida muzlagan siyohni shikastlamaslik-.

  2. Select the appropriate frosted ink, reasonably control the thickness of the ink layer and the UV curing temperature according to the drying method.

First of all, it is necessary to ensure that the mesh number and particle size of the wire mesh are compatible with each other. Generally, use 150-200 mesh for coarse sand, 200-250 mesh for medium sand, and 300-400 mesh for fine sand. Secondly, in the printing process, the viscosity of the ink should be correctly selected according to the size of the ink particle size. The coarse sand is generally controlled at 2000±100CPS, the medium sand is controlled at 3000±100CPS, and the fine sand is controlled at 3500±100CPS. Add as few ink additives as possible. Choose the right UV lamp. The power of the UV lamp is recommended to be about 10kW. The UV curing equipment must be equipped with a cooling device. Generally, a large-diameter air duct is used and a water cooling device is installed on the lamp, so as to avoid the thermal deformation of the paper jam when passing through the light curing device. Paper is brittle.

3. Kesish jarayonining oqilona dizayni va joylashuvi-

Kartonning mukammal shakli toʻgʻri kesilgan chuqurcha-dan kelib chiqadi. Oltin (kumush) karton va mat siyohning xossalari qolipni kesish va burish jarayonining- murakkabligini aniqlaydi.

4. Tegishli harorat va namlikni saqlang

Oltin (kumush) kartonning namligini barqaror qilish uchun chop etishdan oldin namlikni nazorat qilish bilan ishlov berish kerak. Yarim tayyor mahsulotlarni saqlashda va qolipni kesish jarayonida-qog'oz mos namlikka ega bo'lishini ta'minlash uchun ustaxonadagi harorat va namlikni doimiy saqlashga e'tibor berish kerak. Asosiy qog'ozning sifati qanchalik yomon bo'lsa va karton quruqroq bo'lsa, chop etishda chiziq yorilishi ehtimoli shunchalik yuqori bo'ladi. Agar ob-havo g'ayritabiiy ravishda o'zgarsa, kesish{2}}kesish vaqti va kesish pichog'ini ishlab chiqarish- o'z vaqtida sozlanishi kerak. Qog'oz va siyoh plyonkasi mo'rt bo'lganda-o'lmang.

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