JPS5948782A - Toner image fixation method - Google Patents

Abstract

PURPOSE:To perform toner image fixation which hardly causes a rear surface stain by allowing at least polyvalent carboxylic acid to reside at a member which contacts directly or indirectly the outer circumferential surface of a fixation roll. CONSTITUTION:A cleaning roll 4 collects a sticking toner on a heat roll 1 over its outer circumferential surface. In this case, the polyvalent carboxylic acid comes out of an internal liquid holding layer 6 to the outer circumferential surface of the roll 4, so the toner collected on the outer circumferential surface or deposited toner material increases elasticity when and the heater 3 of the roll 1 is turned on; even when the toner material on the roll 4 is heated and melted, the material is suppressed to transfer to the roll 1 and also inhibited from moving to a press-contacting roll 2 as a result, so that the rear surface stain is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for forming a one-layer image formed by an electrophotographic method, an electrostatic recording method, an electrostatic printing method, etc., and developing it with a one-layer gel polisher and molding it on a support. The toner image is fixed on the support.

Conventionally, 15 (・te, le i kaka) T・ner image na fixed 1 ot
In the first place, each village's post-fixing II! 71
) but! For reasons such as the thermal efficiency or j'h% for t''j and there is no risk of fire, for example, a heating roller with a built-in heating roller that can be rotated once is pressed against the heating loaf in the same direction. 1': r) Structure 5y. Mechanism: Contact heating edge fixed M device 1θ is widely put into practical use 2
7+.

The contact heating method r method (which is preferable in some respects as shown in Makoto), but in this method, toner 1 (y
The toner is deposited on the heat roller, and the toner is applied to the following toner image and supported by the support VC. 100 years of beach surface is 21 times dirty (・ 5 defects or heart. Hot roller with a stick” -&i- 1・
After T, Munitnert・Crim=/Gutero mustso is ty
, Cleaning of DC rice cleaner 12 log web, cleaner/ground, cleaner roller, etc. r<1t 4
g 'use 1 no,) is attached rc h, 11 te (・phrase).

Because of β1, this kind of cleaning/guitar material is missing 1
S standing on the platform is the so-called Omoteda 1 dirt. 11 phenomena are 71
Become E-Guru. This backside staining phenomenon is caused by the accumulation of toner substances on the cleaning surface and the swirling of residual toner material on the 12 14, 5, 12, 14, 5, and 1, 2, 14, 5, and 1, 2, 14, 5 parts of the toner material, which may be transferred to the heat "cola" after 7 days. When the toner is fed, it is transferred to the pressure roller and transferred to the pressure contact roller, and then the toner is transferred to the pressure contact roller. !!7/1 quality The back side of the support is dirty due to the phenomenon of dirtiness. Elasticity during melting is -rlr
It turns out that there is a connection between the two. That is, conventionally: 1
6 (・As a binder resin for toner, thermoplastic resin, which is similar to polyester resin, is preferred because it has a low softening point and good centering properties.
・6, these oils are easily transferred to K, which has less elasticity during bath melting, and even if this K is once collected by the cleaning member, for example, once the heater of the heat roller is turned on, For example, when the T-toner material is deposited on the re-inog member, the temperature is increased by 1 + 1 to 6 iJoc from the set level of heat.
During the day, the temperature spread to the heart and pAI'J-ra due to heating.
As a result, a backside stain phenomenon occurs. In addition, first h
)and others! A side dirty rL81+! It is difficult to achieve sufficient elasticity during market melting, such as when an image occurs (・) due to poor concentricity.

The purpose and purpose of this method is to provide a toner image with a 37 + γ value that is as sharp as ``Yu'' and is not accompanied by the back side stain phenomenon. .

Is this purpose a toner image? In the centering method, the toner 11 is brought into pressure contact with the centering roller and the toner 11 is brought into contact with the centering roller directly on the outer circumferential surface of the centering roller.
This invention is achieved by the presence of at least a multi-curved calho/acid in a member that is indirectly in contact with it, and by a standard method with a special feature and a +-' no fl. Specifically explain To0 unexploded BA. 1 direct contact with the surface and 5 indirect contact with the T clause.
At least polyvalent carbon An Y is present in the fixing member V, and the support is fed to the fixing device in this state.
'C A statue of Toner who served as a samurai. Here, the fixing temperature is preferably 130 to 230°C.

According to such a method, if the six resins constituting the binder resin of J. The following reaction occurs and the molecular bones of the polyester (☆( fat) increase.
In this case, polyester (-COOII of one of the polyhydric carboxylic acids at the end ψ〃A of jl 8i1)
10ff, J, v at the end of the tree of the polynis del value collapse of Sara+'C song ・）suko's polyvalent carboxylic acid Ester Yui'G T
Polyester from the center and V (η (116 molecules are cross-linked to each other, resulting in a high molecular weight).Bottom 6
[Reaction 2 [n], R6, Revo, Polynisdel branch (
IJ effect? #13 car forming? The carbonic acid moiety -C-R1-C- is converted into a multi-double-edged sulfonic acid, for example, by the heat of the 2l II 0 moiety and the foot 4J river heat roller, and the 115 conversion reaction is carried out in this place 8 In advance, the molecule of J(4 is the molecule of R1 + 1
The molecular weight of the polynisder resin after the substitution reaction is increased by the addition of 1.2 fttli of carboxylic acid, which is smaller than 1. 1. Reaction formula f, 1.1
1) and 13(・, the reaction formula (TI) is ′j6 and the polyvalent carboxylic acid r sandwiched between
Song Karho/Fried with acid) Until Cali, involved in the prince reaction/
r1. , <・Remaining-(I-COO11 is the end of Holies T/l/other molecules of the resin νC and the first layer group and ester condensation C and (・r than Bo11 ester II/(of the fat) The molecules are cross-linked to each other.

This, t') &'C Polyester I*J 1it7
When the molecular weight of 7 is increased, the elasticity of the 7 and [J-ra (-J means higher (-temperature) than constant 471 crystallinity) HA1 heat v, ;rL
T here t〒 & C also, -mu [transferred to cola (K+) - sasai 1, pressure on history ['' - la flC transfer 1st phrase is suppressed, and the result is PJi 5 awe and dirt Prevents the occurrence of iL phenomenon
You can do something like L-cho-kai.

Reaction formula F, I) 10oooc-rt3-coon 0 0 0 0I
I II II
II...C-1(1-C-0-1t2-
〇-C-R'-C-〇・・・OII I
I II II
l...C-Ro'-C-0-It2-0-
C-1 (1-C-○...01211□ 0 reaction formula trl) 0 0 ('II OII I
I II 11...C-R1
-C-0~R” -(J-C-R1-C-0...
O1l HOOC-R'-COOH 0000 II II II 11→ ・
... C-R'-C-0-4L2-O-C-R4-
(zu-0... 01(10HOOC-R'-CO
OII reaction equation song 1] →-1t5 +C001-J )3 o o 0 0I
I II II
II...C-It'-C-0-IL2-
0-C-R'-U-(J...011\11 \...C-)(1~(,'-0-It2-0~C-
Jtl-C-○..., 0+ 1+00C-R1-
C (JOII + II 1J
"Stop snoring and alcohol"jjB's axle! +5
'f k j) L, 1v, r<'! ”＜Hif(5
+t k years old 1 years old 1 broom (1 mountain calho / eye β door, heavy stand! Ichikepanotsushi, that [・1-target (・ko( will be described later) ”) II base left over fko H
ll Rana de poly) ◇ 0) iii Things ¥ list 2 and - C 6..

This/) multi-1ijllcalho'/1ν is the toner bay/
Goo 11. □(Fikke IA fik t-ichikoiku) Polyester II (n19') Todo'fi! 71. ”15
8 stones selected by the same, many (calbo songs / acid 11 songs calho / j
4 No., 5 (C is shown in the old formula T) is a polyhydric carboxylic acid with a molecular weight larger than the molecular weight of the direct conversion reaction 1 filtration polyester resin. The acid is selected T(Φ.

The power of the present invention is suitably used in a combination of 10 and 70% (as a 20% toner, 7 bi/ter resins are polyester + 474%
This polyester is 11th grade (17th month), and is given by the polymerization of chloroform and carbonic acid.
Examples of alcohols that can be used include ethylene glycol, dieterenodalicol, trienale/glycol, 1,2-gropyre/glycol, and ■.

3-globylene glycol, l,4-phthalate/diol,
Diols such as neopentyl glycol, ■, 4-datenonol, 1,1-bis(hydroquinomethyl)cyclohexa/, and bisphenol A1 water-cooled bisphenol A, polyoxyethylated bisphenol A1 polyoking ["pyreno] bisphenol A, 4 needled bisphenols, sorbitol, l, 2,
3, fi-hexanetetrol, 1゜4-sorbita/, be/taerythritol, erythritol, tribe)
Tritol, sucrose, 1,2,4-butanetriol, 1,2,5-pentanetriol, glycol, 2-menarol, 2-methyl-]
, 2,-1-phtha/1-liol, trimethylol ethano, trimethylol ethano/, 1,3.5- tri-1
゛Loki/Nochirube/Zeno, it's hard to name them among the Seven Immortals).

Examples of the carboxylic acid include maleinoic acid, fumaric acid, JLR Conversion, citraco/r9/, itaconic acid, cultaconoic acid, phthalic acid, ylantalic acid, terephthalic acid, cyclohexane dicarboxylic acid, succinic acid, gamma /
卜′、Sebachi/acid、mag 7C1′<,l,・1-be/
zendibutyric acid, 4, 4'-Nia"roba/-dibenose/
Carboxylic acid, 1,4-chlorohexa/diC]5 rLi
, anhydride of 15i of 1b, lower alkyl ester and linol/inic acid diamine, 11214-benzenetricarboxic acid, 1,2.5-benzenetricarboxylic acid, 1
,2. ．． 1-7 clohexanetricarboxylic acid, 2,5.
7-Naphthalene/Tricarbo 71゛↓ri, 1,2.4-Buta/Tricarbo/Shi,
l, 2.

5-hexanetricarvone r8. 1+3-/h luboquinol-2-methyl-2-methylene/carho sylpropano, tetra(methine/carboxyl) meta/, 1.2,7
, 8-octa/tetracarbokjo, ko/bo~"tan',
1 bottle of vinegar rI, /2 hi, := , t+ l:)ノAk
(:9W'I'ty -+-UrrlIJ t, 3
;; A phrase that can be expressed.

Previous [; Self-multiple curved carbo/1 case 1, even if it is an adult itself, leave it as it is (・but if it is solid, add all of the cup α, fraction liquid, etc. As f = t, the condition is 7), and the temperature of the constant heat output roller is 7).
16 contact and 1 indirect contact 'T7-) part attachment, porous '1 side material to 5Y log body planting body 1 attack! (k(
・It is preferable to assemble it with a liquid holding body → t and make a bay, and then impregnate and hold liquid polyvalent 1-carboxylic acid/anhydride in this α rest (-f body).

Target tool 1, as shown in Figure 1, 7 dots. And this heat roller l and pressure contact-
Arrangement so that it looks like this - 1. On the outer periphery of the climbing ram/
I set up a rubber j, and I cut one, two and two
L, heat "" - VC in the inner space of LA 1 is provided with heater 3, and is in contact with heat C7-RA 1 and is connected to slave I! Install 4 cleaner/growlers so that the
In addition, a liquid source h F (J
The outer circumference of this yeast-produced fetus 6 is 1fJl in 6w cutting history.
jJIφ, 'r tl knee/-Ijnfelt 1
1) Provide a coating with a polyhydric carboxylic acid and remove it.

P (Go support, 1.5-inch figure, Wi: I-branch 11).

■[1]・Shoes (+'=1) or device
month] (・ () 6 (C9 construction, ri
1) -2/Goots 4 shores 1 island j hit and fever "
4) Therefore, on the outer periphery of the cleaning roller 4, there may be some accumulation of toner particles, or on the inner surface of the cleaning roller 4. The liquid source layer 6L, 1i11i, carboxylic acid has been leached out, and the outer periphery (ul) is where it is collected and deposited. Car 1
Vermilion, the heater 3 of the IHu-ra was axed and the cleaning mortar-ra 4"-9"-9'〃' was hit by force.
Even if 1 bath melting [-1-, Nanaishi is a heat roller jC (-transition 1
- As a result, the pressure welding row 22 is suppressed.
Also, the transfer of the toner substance is inhibited, so that the light of the color of the image is suppressed.11. :, -4-ru・
I can do two things.

εB2j′1 has +j4 FJ′v,′ which is similar to Creeney/Growler 4 in the 11th′Yl #τ and −4′
6i body supply roller 11% -1r+ -ru 12, l
3, the cleaning web I. When the toner particles are collected and deposited on the Nogweb 140, the elasticity increases, and the occurrence of the l-face fouling phenomenon is stopped by 11[,771k+-]. The service life of the cleaner/gweb 14 is long (7: (, 2;).

1, 3
This cleaner/growler 20 is not provided with a tangential groove 11, a single body 1v holding material 21, and this armpit 1 heather retaining material 21 & has a multi-faceted calho') acid. The agency was soaked in the first meeting.

And this 1shii [oi-Cku1, 1st (/j's B''1
j and 1ii1's multi-person, 44', npai! t et al.
Yes.

1-], put one 4N in the soil [Ml is good, 1-1 (heat fixing force type 4]) in the 51X swamp of toner grudge -10 (-1, the electric layer comes out) When the heat roller is heated 1.I'lj (C) and the S material for Jl-2/・If it is 1, it will occur), heat roller C, C vs.
Therefore, it is possible to transfer to C month three-jointed loaf γ To my heart's attention, I am very clever.
◇. Do it ↓ C11 dirty Sai 1+ look
Hatake (no Mitsunori 2 I7' βli 1[-one~ri・
f Nishi'・(・41・Boo-no-bai/Ri-ii☆I l1iI and (1, Te JL:gMy 1st floor's Ni-L-Gun's elasticity is for human shelter/things (・Life is necessary) Therefore, the toner's own f''-i, Chang 1'-yu Q, ¥1'1
-Condolences'1
People, 'J VC'if' - Is it good? j]'
JW i+l+i (J is a cat e b'V-271,7
,).

4-'(1-, bright method 1/j example outfit, 1J evening l
The structure of ・411 phrase device (1 VCJ is carried out at least 8 times, of course, +T, 210 small examples ('(Id Kebe) yotsu ni kuri 12/rijjli not 3 K −.

g l1llll Cald:'779%'4 II,
4J EJ I, T 4. (L) k(l pIj
``r, '') ``'j-1f:J :j, ba'jL>
；＋月』 Heat roller paste 1 round 1 - multi 1 song Karho / acid ke 1 temple, r, 2 f mellie is a loaf-shaped capital (Igakari contact set y) ζ], In the past, J'#, t +, ner was in contact with the multi-f curve carbon ugliness, and T was 12/1) 1) (, 4, so that the number is 1/),
T-carboxylic acid? Holding T-piece? It is preferable that the heating roller be placed in contact with a region of the heating roller on the θW side from the cleaning head of the cleaner/guto H.

Well, as mentioned above, the hyperactive carbon orchid is used as a whole for Buddhahood. As a liquid, it is desirable that it is not stable against heat.

Furthermore, when the carrier liquid is a mold release 1 cow ke 1 heart (go, this carrier liquid is a constant / l "island Jyu-ra's entrance 1 also 1 sum θ · n 2 f to 6 cW u ( Since the center of gravity is the same, after the toner of the toner is attached to the heated roller, a suppressing effect will be obtained. It is preferable to use a liquid toner/reconno oil.A carrier liquid such as this oil and a multi-track carbo 7r stage]?llJ units differ depending on the type of toner binder 1 tbsp.
Selected from the range of 99 to 99.1, usually 95 to 5 ()
5 to 50.

Examples of the present invention are described below.

Actual) +ij example Electrophotographic copying machine IU-Bix with carbon steel centering roller
VJ (Roku Konishi photo - made by Gyosha) Modified Isoke use, Ya's cleaner/glare, silico/oil containing 11% trimellitic acid out of 10, Polyester iso (resin r main component and ~ zu i na 5v, ro 2 D''Z minute thread jM image agent zogawa (・te 3 o o o times cobi-testke is performed T2.

As a result, almost no stains were observed on the 3,000 photographs taken on both surfaces. After completing the +1copy test, the toner material of Cree2/Glora 10 in C becomes solidified and becomes a lump (・γko).

In addition to this, in a copy test conducted in the same manner with Cleanino Glora impregnated with only silico/oil, dirt V appeared on the back side of the copy from ρ) when the number of copies reached 1500 times. One that emits light.

A simple carving of 4 and 1? 1 to 3 are suitable for carrying out the method of the present invention.
FIG. 4 is an explanatory cross-sectional view showing an example of the h4 configuration of a fixed yQ-device.

■...Heat roller 2...Pressure roller (17) 3 Heater 4 Crimson roller 5 - Refill 11 core 6 - Liquid retaining layer 7 Coating layer
11...Liquid supply roller 12.13...Roll
14.Cleaning Up 20...Brush Type Riini/Glora 21.Liquid Retaining Material Representative Masahiko Ooi, 9. Straw >\, Figure 3

Claims (1)

[Claims] 1) Press the support supporting the toner image against the fixing roller -V
Then, the toner image is fixed on the support using a constant Np helical fixing method, and at least a polyhydric carboxylic acid is present in the portion VC in direct or indirect contact with the outer circumferential surface of the fixing roller→L
cy)/:,) How to visit a special detective and a unique Toner statue.