快速回答： buyers choosing additives for screen inks usually get a faster shortlist when they separate three different problems early: poor substrate wetting, weak print-face leveling or slip balance， 和 persistent foam or entrained air. In Longchang’s CHLUMICRYL® branch, CHLUMIWE® 3280 is the cleaner first route when the screen ink needs a direct wetting solution. CHLUMILE® 3432 deserves earlier review when the real pressure is smoother laydown, better slip, and less anti-blocking trouble on the printed face. CHLUMIAF® 3062 moves up when print consistency is being limited by foam, microbubbles, or air-release instability.
This page is intentionally narrower than the broader CHLUMICRYL® 涂层和油墨添加剂 overview and different from the already-live function pages for 润湿添加剂, 找平添加剂， 和 消泡剂. The buyer question here is more application-specific: which additive route makes sense when the print line is screen printing and the real commercial pressure is coverage, smooth laydown, blocking behavior, or process stability?
Why screen inks deserve a separate additive-selection page
Screen-printing inks are not just another generic printing-ink case. Buyers often have to keep 基材润湿, printed-face smoothness， 和 line stability in balance while working with a heavier deposited ink film than many other printing methods. That usually means the first shortlist should not start from a broad “ink additive” label. It should start from the actual defect or processing bottleneck.
General industry framing around printing-ink additives also separates wetting behavior, slip or rub behavior, anti-blocking, and defoaming as different jobs rather than one interchangeable additive function. That broader framing helps explain why a dedicated screen-ink page is commercially useful here. The product-level claims below stay tied to Longchang-supported product pages and company-controlled application notes.
Quick shortlist: when CHLUMIWE® 3280, CHLUMILE® 3432, or CHLUMIAF® 3062 usually makes sense
| 产品 | Best first fit in screen inks | 为什么买家会将其列入候选名单 | 主要观察点 |
|---|---|---|---|
| CHLUMIWE® 3280 | Substrate wetting when the ink is not spreading or covering cleanly | Longchang directly positions it as a silicone wetting agent and screen printing ink wetting agent, with low surface tension and a recommended dosage of 0.2% to 3.0%. | Use it when wetting is the first bottleneck, not as a substitute for slip or foam-control work. |
| CHLUMILE® 3432 | Print-face leveling, smoothness, slip, anti-adhesion, and anti-blocking | Longchang directly supports 3432 for printing-ink applications and describes improved wetting and leveling, ultra-smooth effect, low stable foam, compatibility, anti-adhesion, anti-blocking, and slip. | Choose it when the problem sits on the printed face rather than in process foam alone. |
| CHLUMIAF® 3062 | Foam-control and air-release stability in coatings, inks, and UV inks | Longchang directly supports 3062 as a printing-ink defoamer with recommended printing-ink dosage of 0.1% to 0.5%, broad system applicability, and balanced defoaming plus foam inhibition. | It is the stronger route when foam is the real defect, not when the first problem is substrate wetting or surface slip. |
When CHLUMIWE® 3280 is the better fit
CHLUMIWE® 3280 should move up first when the screen-ink program is being limited by 基材润湿 instead of by surface feel or foam alone. Longchang directly titles it as a silicone wetting agent, screen printing ink wetting agent. The current product page also supports a recommended dosage of 0.2% to 3.0%, polyether-modified polysiloxane chemistry, and surface tension less than or equal to 25 mN/m.
That makes 3280 the cleaner first route when:
- the screen ink is not spreading or covering the substrate cleanly,
- the buyer wants a directly screen-print-oriented wetting route instead of a broad general additive first,
- the defect starts at ink-to-substrate contact, not later in blocking or foam behavior, and
- the team wants a first screen focused on wetting efficiency rather than on print-face slip tuning.
In short, 3280 belongs early when the question is whether the ink can wet and lay onto the target surface properly in the first place.
When CHLUMILE® 3432 is the better fit
CHLUMILE® 3432 should move up when the screen ink already wets reasonably well, but the printed face still needs smoother leveling, better slip, less sticking, or more stable anti-blocking behavior. Longchang supports 3432 as an organic-silicone leveling agent for printing-ink applications. In Longchang’s company-supported application notes, 3432 is also used where buyers need improved wetting and leveling, ultra-smooth effect, extremely low stable foaming, excellent compatibility, anti-adhesion, 抗阻断， 和 excellent slip.
That is commercially useful because many screen-ink buyers are not solving only coverage. They also care about how the printed face handles after printing, especially when rough laydown, sticking, or poor slip starts affecting product appearance or downstream handling. 3432 is the stronger route when the job needs surface quality plus handling balance instead of only a wetting correction.
When CHLUMIAF® 3062 is the better fit
CHLUMIAF® 3062 becomes more important when print consistency is being limited by foam, microbubbles, or air entrainment. Longchang directly positions it as an organic silicone defoamer, printing ink defoamer. The current product page gives a recommended dosage of 0.1% to 0.5% for printing inks and shows applicability across 紫外线, solvent， 和 水性 systems. Longchang’s own product framing also supports high compatibility, excellent instant defoaming, long-lasting foam inhibition, and suitability for coatings, inks, and UV inks without harming intercoat adhesion or recoating.
That makes 3062 the cleaner first route when:
- the screen line is already showing bubbles or unstable print consistency,
- the formulation needs a defoamer that stays relevant across more than one ink system window,
- the process bottleneck is air release rather than wetting or slip, and
- the team wants a screen-ink route that can still fit broader printing-ink workflows.
How buyers should shortlist additives for screen inks
1. Start with the real bottleneck
If the ink does not wet the substrate cleanly, start with 3280. If the substrate is already wetting but the printed face still looks rough, sticky, or blocking-prone, move earlier to 3432. If the print is losing consistency to foam, 3062 deserves the first screen.
2. Separate print-face control from process defoaming
Screen inks can need both, but buyers lose time when they test a defoamer to solve a leveling problem or a slip-focused additive to solve entrained air.
3. Keep the system boundary visible
3280 is the cleaner first step when the problem begins at wetting. 3432 is stronger when the printed face needs better balance after laydown. 3062 is the practical route when line stability is being narrowed by foam and bubble behavior.
4. Do not collapse all printing-ink issues into one additive trial
Screen-ink projects often move faster when the first sample round includes one wetting route， 一 print-face leveling and slip route，以及一个 defoaming route, rather than several partially overlapping additives without a clear hypothesis.
5. Keep related internal pages in scope
If the real issue turns out to be broader wetting across multiple ink types, revisit the live 润湿添加剂 page. If the issue is more about general slip or anti-blocking than screen printing specifically, revisit 润滑剂 和 防堵塞添加剂.
推荐的龙昌产品和文章路径
- Screen-ink wetting route: CHLUMIWE® 3280
- Print-face leveling and slip route: CHLUMILE® 3432
- Foam-control route: CHLUMIAF® 3062
- Broader overview: CHLUMICRYL® 涂层和油墨添加剂
- 相关功能页面： How to Choose Wetting Additives for Coatings and Inks
- 相关功能页面： 如何选择涂料和油墨的流平助剂
- 相关功能页面： 如何选择涂料和油墨用消泡剂
- 相关应用页面： How to Choose Additives for Gravure Inks
常见问题
Which additive should I test first in screen inks?
Test the additive that matches the real bottleneck first. For poor substrate wetting, start with CHLUMIWE® 3280. For print-face leveling, slip, or anti-blocking, start with CHLUMILE® 3432. For foam-control trouble, start with CHLUMIAF® 3062.
Why is screen-ink additive selection different from a general ink-additive page?
Because screen inks usually force buyers to balance substrate wetting, higher deposited ink-film behavior, printed-face handling, and process stability together. That makes the shortlist logic more specific than a broad generic ink page.
When should I move from a wetting route to a leveling route?
Move from 3280 to 3432 when the substrate is already wetting reasonably well and the real issue becomes smoother laydown, better slip, reduced sticking, or anti-blocking on the printed face.
Can 3062 still matter if the ink also needs later coating or recoating compatibility?
Yes. Longchang’s product framing for 3062 explicitly notes no adverse effect on intercoat adhesion and recoating, which is one reason it remains commercially useful in broader printing and coating workflows.
Is this page replacing the broader wetting, leveling, or defoamer pages?
No. Those pages stay useful as function pages. This article is narrower and built for the application-specific buyer question of how to choose the first additive route for screen-printing inks.
Need a tighter screen-ink shortlist?
If your screen-ink project is being limited by poor wetting, rough print-face laydown, blocking, or persistent foam, define that bottleneck first and then compare only the most relevant CHLUMICRYL® routes. That usually gives a faster and cleaner buying decision than treating all screen-ink additives as interchangeable.