CN1391494A - Bladder shell for inflatable balls - Google Patents
Bladder shell for inflatable balls Download PDFInfo
- Publication number
- CN1391494A CN1391494A CN99817034A CN99817034A CN1391494A CN 1391494 A CN1391494 A CN 1391494A CN 99817034 A CN99817034 A CN 99817034A CN 99817034 A CN99817034 A CN 99817034A CN 1391494 A CN1391494 A CN 1391494A
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- Prior art keywords
- mould
- latex
- synthetic latex
- layer
- solution
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/14—Dipping a core
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B41/00—Hollow inflatable balls
- A63B41/02—Bladders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2022/00—Hollow articles
- B29L2022/02—Inflatable articles
- B29L2022/025—Bladders
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Diaphragms And Bellows (AREA)
- Gloves (AREA)
Abstract
A bladder shell for inflatable balls having at least a layer each of compounded synthetic latex having thickness of from 0.1 mm to 2.00 mm and compounded natural rubber latex having thickness of from 0.1 mm to 2.00 mm or at least a layer of blended synthetic latex and natural rubber latex compounded with anti-oxidant, activators, accelerators, thickening and wetting agents, stabilizers etc. to form a low air permeability and high bounce bladder shell having thickness of between 0.25 mm to 3.0 mm. The present invention also resides in the process for the preparation of the bladder shell comprising formation of at least a layer of compounded natural rubber latex and compounded synthetic latex each by dipping the former in not only compounded natural rubber latex bath but also in the compounded synthetic latex bath. In an another embodiment, the process comprises dipping the former in the bath comprising blended compounded natural rubber latex and compounded synthetic latex.
Description
Invention field
The present invention relates to a kind of softgel shell as inflatable ball, comprise one deck compounded synthetic latex and composite natral latex at least, stacked together and be cross-linked to form a kind of low air permeability and elastomeric softgel shell mutually by sulfidation with desired thickness.
The present invention also provides a kind of softgel shell as inflatable ball, comprises that one deck has the synthetic latex of desired thickness and the mixed layer of Heveatex at least.
The purpose of this invention is to provide the softgel shell as sacculus, it has low air permeability and high resiliency.
Embodiments of the invention relate to a kind of softgel shell as inflatable ball, comprise one deck compounded synthetic latex at least, and one deck composite natral latex at least and then is stacked together and be cross-linked to form a kind of low air permeability and elastomeric softgel shell mutually by sulfidation.The gross thickness of the thin layer that forms is 0.25mm to 3.0mm.
Embodiments of the invention relate to a kind of softgel shell as inflatable ball, comprise the mixed layer of one deck compounded synthetic latex and composite natral latex at least.
Another embodiment of the present invention relates to the improvement technology that is used for inflatable ball latex softgel shell, and described latex softgel shell comprises one deck Heveatex and synthetic latex at least.The main embodiment of technical process of the present invention is to provide the lamination more than one deck latex, so that form a kind of air-tightness and flexible softgel shell with improvement.
Background technology
On market, commercially available conventional softgel shell or only have low air permeability perhaps only has high resiliency.And in fact needed softgel shell is both to have had low air permeability, also has high resiliency.
As the existing rubber bag tank of routine, be composited on the rubber mill or on Banbury mixer (banbury mixer) by the sizing material that is similar to isobutyl (alkene) rubber.Then these compound calenderings are become to have the tablet of required thickness.From rubber slab, the breach at 1/4th places of capsule can be in the same place by manual engagement by adhesive and end sticking patch.A vacuum pipe fitting is inserted and pastes in the structure.Then general construction is heated, produce a capsule.The application of adhesive has caused faulty seam and serious weight unbalanced.This common process process usually causes a large amount of defective capsules and too much waste material.
The existing conventional capsule can be made by thermoplastic material, makes as polyethylene powder and vinyl plastisol., these materials do not have elasticity, but good air-tightness is arranged, and therefore are not suitable for use in inflatable capsule.
The common also available inflatable bladder of making by natural rubber.Have good elastic performance at the commercially available latex softgel shell of making by Heveatex, but higher air permeability is arranged.Owing to have higher air permeability, the continuous leakage of air needing at short notice to cause frequent capsule is inflated.
Conventionally, the capsule known of people can be made by butyl rubber.In U.S. Pat 4,022, disclose described capsule in 848 and comprised low unsaturated butyl rubber.This patent has been lectured the purposes of butyl rubber composition in tire curing bladder, air bag, curing tube.
Prior art people have known butyl rubber, and are open in the 15th to 24 row on first hurdle in 3,031,423 at U.S. Patent number.The problem that butyl rubber faced is that it has good air-tightness, but it lacks better elastic.
Therefore, do not influence elasticity and other character with regard to being necessary to reduce air permeability.
Summary of the invention
The invention provides a kind of softgel shell that can be used as with desirable low air permeability and elastomeric inflatable ball.The present invention has also determined the preparation process of this softgel shell.
The present invention relates to a kind of softgel shell as inflatable ball, at least comprise one deck compounded synthetic latex and composite natral latex, stack and be cross-linked into mutually one by sulfuric horizon, have low air permeability and elastomeric shell so that form, to it is characterized in that the gross thickness of the thin layer that produced is 0.25mm to 3.0mm.
The invention still further relates to a kind of softgel shell as inflatable ball, comprise the thin layer that one deck was at least mixed with ratio by synthetic latex and Heveatex in 80: 20 to 20: 80 mutually, available antioxidant, activator, coagulant, intensifier and humidizer, stabilizing agent or the like carry out chemical combination, so that form low air permeability and elastomeric softgel shell, the thickness that it is characterized in that mixing thin layer is 0.25mm to 3.0mm.
In order to reach desirable low air permeability and high resiliency, can be by synthetic latex mixture and Heveatex mixture be mixed, or in more than a complicated lattice, carry out single-steeping at least, come the softgel shell of inflatable ball is processed processing.
In about thirties in 20th century, obtained the coml application with sufficiently stable form as the latex dipping technology of natural rubber lattice.Latex dipping technology is because of its rubber content height, thereby harmfulness is little, more economical and technical more general, has replaced the rubber solutions impregnation technology gradually.The latex dipping process comprises uses an inertia mould, and described inertia mould is the shape of final desired product, and described inertia mould scribbles the solution of one or more layers latex mixture.Utilize coagulating agent and/or heat drying that coating is solidified, make it become a continuous rete that next can peel from mould.
Conventionally known technical process is to utilize the preparation of Heveatex as softgel shell, and mould is impregnated in the Heveatex, wherein uses one or many dipping coagulating agent that coating is solidified.Therefore formed softgel shell shows high resiliency and low air-tightness.
The present invention relates to the preparation process of capsule, described capsule not only shows desirable high-elastic characteristic, also shows low air permeability.Main embodiment of the present invention is to have at least the formation of one deck Heveatex and synthetic latex layer.Process of the present invention comprises mould not only is impregnated in the composite natral latex solution, but also to be impregnated in the compounded synthetic latex solution.Alternately mould is impregnated in compounded synthetic latex solution and the composite natral solution with any order.Therefore, on mould, can form two kinds of different latex layers.The final products of being peeled off are mixtures of various compositions, and described composition not only has needed elasticity, and also have low latitude gas permeability.According to the characteristic of desired end product, but also deposit multilayer Heveatex and synthetic latex.
In another embodiment, the mould that scribbles coagulating agent at first is impregnated in the latex solution bucket that comprises synthetic latex and other composition, carries out drying then, coat coagulating agent, then it is immersed in the solution that comprises Heveatex and other composition, vice versa again.
Various composition can be added in the latex, that is to say that Heveatex and/or synthetic latex choose from antioxidant, coagulant, activator, stabilizing agent, softening agent, inserts, wax, dyestuff, remover and non-foam surfactant.
These compositions are added in the latex with solution, dispersion liquid or emulsion form.The composition of dispersion liquid or emulsion form is added in the lattice, just formed compound.When preparation finish synthetic and the Heveatex compound after, they are put into separately solution tank respectively.
In order to mix Heveatex and synthetic latex, described Heveatex was mixed with ratio with synthetic latex in 80: 20 to 20: 80, the speed with 10-15RPM (per minute rotating speed) stirs simultaneously, and forms the mixture of homogeneity by high speed agitator.
Comprise at least one pair of Heveatex and/or synthetic latex layer as the inflatable ball softgel shell, this softgel shell can be mixed by following composition:
Antioxidant from 0.01 to 3PHR
Coagulant from 1 to 3PHR
Activator from 0.01 to 5PHR
From 0.5 to 1PHR thicken and humidizer
Stabilizing agent from 0.1 to 2PHR and optionally selecting for use
Softening agent from 0.1 to 2PHR and
Inserts from 5 to 20PHR
From epoxy natural latex, livering (concentrating) latex, centrifugal concentrate or two centrifugal concentrate, select Heveatex.
Block Seat D, sulfhydryl class or thiurams coagulant and similarly select coagulant the material from dithiocar-bamate, crow card Seat LDA, black card Seat LDB, Setsit9, Setsit5, butyl namate, guanidine, crow card Seat DOTG, crow.
Employed antioxidant is the antioxidant of the antioxidant of the non-type that fades and the type that slightly fades.The antioxidant of the described non-type that fades can be selected from antioxidant BKF, antioxidant MB, antioxidant ZMB, antioxidant NONOX WSP, antioxidant NONOX BROD, antioxidant 2246, Wingstay L or Agerite White and similar substance.
The antioxidant of the described type that slightly fades can and similarly be selected the material from antioxidant BS or antioxidant nonex BROD.
Selectable composition as softening agent and inserts, also can add in the Main Ingredients and Appearance, and wherein softening agent can be selected from comprise paraffin, solid paraffin or stearic base.Inserts can be selected from china clay, mica powder, white powder, lithopone, Blancfixe, carbon Blancfixe Titanium Oxide (titanium oxide).
Above all reference compositions are added in the latex of solution, dispersion liquid or emulsion with predetermined ratio.
Be impregnated in first coagulant solution by mould cleaning, can on mould, obtain the layer of even film, therefore just made expandable softgel shell, the composition that described first coagulant solution is comprised can be selected from calcium nitrate, calcium chloride, acetate, releasing agent or carrier, water and selectable alcohol, humidizer and defoamer.Then the coagulating agent layer that is had on the mould is carried out drying.Be impregnated into the dried coagulating agent that is coated on the mould in the solution then or in a pair of solution, described solution contains compound compound crystal lattice or contains the synthetic latex mixture or the Heveatex mixture.
The latex that then will be coated on the mould carries out drying in baking box.Then mould is immersed in the pond and cool off, after this formed softgel shell is peeled.Formed softgel shell is washed and drying and post processing.Then check valve is installed in the neck of softgel shell, so that form the capsule of inflatable ball.
Therefore, the present invention relates to softgel shell as inflatable ball, it comprises one deck compounded synthetic latex and composite natral latex layer at least, described compounded synthetic latex and composite natral latex layer stack by sulfuric horizon and are cross-linked into a kind of low air permeability and elastomeric softgel shell mutually, the ratio that it is characterized in that described compounded synthetic latex and described composite natral latex is 80: 20 to 20: 80, and the lamellose gross thickness of the mixing that is produced is 0.25mm to 3.0mm.
The invention still further relates to softgel shell as inflatable ball, it comprise at least one deck have thickness be the compounded synthetic latex layer of 0.1mm to 2.00mm and at least one deck have the composite natral latex layer that thickness is 0.1mm to 2.00mm, it is characterized in that two-layer gross thickness is 0.25mm to 3.0mm.
And, the present invention relates to a kind of improvement technology that is used for making the softgel shell of inflatable ball, comprise the following steps:
A) clean mould;
B) mould of described cleaning being impregnated into temperature is 20-95 ℃ first coagulant solution
In, can obtain being coated in the first coagulating agent coating on the mould;
C) the described first coagulating agent coating that is coated on the mould is carried out drying;
D), the coagulating agent on the mould of being coated in of drying is impregnated into and has heavily according to needed thickness
Amount is in the compounded synthetic latex of the 40-65% of solution 1 to 4 minute, is 20-45 in temperature
℃ the time, on the described first coagulating agent coating that is coated on the mould, it is multiple to obtain one deck
Close the synthetic latex layer;
E) described mould with compounded synthetic latex layer is carried out drying;
F) described mould with drying of compounded latex layer being impregnated into temperature is 20-95 ℃
In second coagulant solution, can obtain being coated in on the compounded synthetic latex layer on the mould
Two coagulating agent coatings;
G) described second coagulating agent that is coated on the mould is carried out drying;
H), described second coagulating agent that is coated in the drying on the mould is soaked according to needed thickness
Steep and have in the composite natral latex of 40-65% that weight is solution 1 to 4 minute,
When temperature is 20-45 ℃, on described second coagulating agent that is coated on the mould, can produce
The composite natral latex layer;
I) described mould with compounded synthetic latex layer and composite natral latex layer is done
Dry;
J) has the mould of compounded synthetic latex layer and composite natral latex layer in hot water with described
Leaching 8 to 10 minutes is so that from the too much composite of surperficial elimination, with described mould
Son carries out drying in temperature is 55-115 ℃ baking box;
K) be between 100-140 ℃ in temperature, to the described tool of crossing described leaching, dry
There is the mould of compounded synthetic latex layer and composite natral latex layer to vulcanize;
L) described final mould cools off;
M) peel off composite natral latex and synthetic latex layer from the final mould of described cooling, just
Obtained a shell;
N) water washes the described next shell that peels, so that remove any impurity, with what washed
Shell carries out drying in hot air chamber, the shell of described flushing is advanced at 60-90 ℃
Solidified 8-12 hour the row back, has just obtained the softgel shell as a result as inflatable ball;
Wherein, the described coagulating agent that will be coated on the mould is impregnated into as in the defined synthetic latex solution of step (d) or as being reversible in the defined Heveatex solution of step (h).
The invention still further relates to a kind of improvement technology that is used for making the softgel shell of inflatable ball, comprise the following steps:
A) clean mould;
B) mould of described cleaning being impregnated into temperature is in 20-95 ℃ the coagulant solution, can
Obtain being coated in the coagulating agent coating on the mould;
C) the described coagulating agent coating that is coated on the mould is carried out drying;
D) the described dry coagulating agent that is coated on the mould is impregnated into has synthetic latex and natural gum
In the breast mixed solution, its blending ratio is 80: 20 to 20: 80, according to needed
Thickness when temperature is 20-45 ℃, has 40-65% compound that weight is solution
Mixed in the composition 1-4 minute, and on described mould, can obtain the sky that one deck mixes
Right latex and synthetic latex layer;
E) described mould with mixed layer of described synthetic latex and Heveatex is done
Dry;
I) with described mould leaching in hot water with mixed layer of synthetic latex and Heveatex
8 to 10 minutes, so that, described mould is existed from the too much composite material of surperficial elimination
Temperature is to carry out drying in 55-115 ℃ the baking box;
J) in temperature is 100-140 ℃ hot-air, to the tool of described leaching in baking box
There is the mould of the mixed layer of composite natral latex and synthetic latex to vulcanize;
K) described final mould is cooled off;
L) peel off the mixed layer of Heveatex and synthetic latex from the final mould of described knot, must
To a shell;
M) water washes the described next shell that peels, so that remove any impurity, with the shell that washed
In hot air chamber, carry out drying, the shell of described flushing is carried out at 60-90 ℃
Solidified 8-12 hour the back, has just obtained can be used as the softgel shell as a result of inflatable ball;
With reference to the accompanying drawings, can better understand the present invention.Yet accompanying drawing should not limit the scope of the invention.
The accompanying drawing summary
Fig. 1 has described the regression result of conventional available capsule;
Fig. 2 has described the regression result of expandable capsule of the present invention.
The specific embodiment
The present invention relates to a kind of softgel shell, described softgel shell comprises one deck Heveatex and synthetic latex at least, and is stacked together and be cross-linked into one mutually by vulcanizing, and has low air permeability and elastomeric softgel shell with formation.The gross thickness of formed thin layer is 0.25mm to 3.0mm.
The present invention has further determined a kind of softgel shell, described softgel shell comprises the thin layer that one deck was at least mixed with ratio by synthetic latex and Heveatex in 80: 20 to 20: 80 mutually, available antioxidant, catalyst, coagulant, thicken with humidizer, stabilizing agent or the like and carry out chemical combination, so that form low air permeability and elastomeric softgel shell, the thickness that it is characterized in that mixing thin layer is 0.25mm to 3.0mm.
In another embodiment, determined the process of preparation softgel shell.In order to make softgel shell, at first to cleaning, so that remove dusts all on it and all impurity by porcelain, plastics or metal mould.The surface of mould preferably utilizes mould is impregnated in Acid-Base and/or the water to be cleaned.Utilize ultrasonic cleaning tank to guarantee the most effective cleaning to mould.Also to the mould that clean be washed and humidification, wherein mould is impregnated in the humidification pond, so that in next pond, obtain wetting uniformly.
Mould with humidification that then will wash, cleaning is impregnated in the coagulant solution, will form the uniform first coagulating agent film on mould, and described coagulant solution is defined as first coagulation solution.The solution compolision that comprises in the coagulant solution is selected from calcium nitrate, calcium chloride, acetate, humidizer, defoamer, releasing agent or carrier.Calcium chloride and/or calcium nitrate account for the 10-75% of total composition.Acetate is added in the solution, and to keep the acid number of solution, the pH value is between the 2.2-6.8.The humidizer that is added in coagulant solution accounts for 0.01 to 10% of total composition weight.Humidizer is the basic surface activating agent, can select from anion, nonionic, cationic surfactant.Selectable with alcohol as humidizer.Releasing agent is the inert powder that adds, and purpose is to be convenient to remove final products.The viscosity of coagulating agent is lower, can increase the viscosity of coagulating agent by adding inert powder, therefore, can form the viscous layer of coagulating agent on mould.Remover, just inert powder can and similarly be selected the inert material from talcum powder, calcium carbonate, magnesia, bentonite.The remover that is added is the 0.01-20% of total amount.Can form uniform coagulating agent coating on mould, wherein the humidizer in the coagulant solution can guarantee the uniformity of coagulating agent coating.Be deposited in the thickness that thickness on the mould depends on the desired film as a result of specification of formed capsule and capsule.The temperature of first coagulant solution will remain between 20-95 ℃.At room temperature dry or carry out air-dry to being coated in first coagulating agent on the mould then with the air that heats.Defoamer also is a surfactant.
Dried first coagulating agent that will be coated in then on the mould is impregnated in the latex solution, and described latex solution can be selected from Heveatex solution or synthetic latex solution.In this stage, perhaps use synthetic latex solution, perhaps use Heveatex solution.If at first used synthetic latex solution, just should use Heveatex solution in next stage.
Synthetic latex solution comprises the synthetic latex that multiple compound composition mixes.Complicated lattice battle array can be selected from the group that comprises ameripol latex, acrylonitrile-butadiene latex, neoprene latex, butyl latex and EPDM latex.Synthetic latex with multiple from vulcanizing agent, antioxidant, catalyst, thicken and/or humidizer and selectable softening agent and inserts the compound composition selected mix mutually.
20: 80 to 80: 20 the Heveatex of mixture ratios available and the synthetic latex of preparation capsule, be under 25-35 ℃ the condition in temperature, mix, and add other composition, and as: antioxidant, coagulant, activator, stabilizing agent, softening agent, inserts, wax, dyestuff, remover and deaeration surfactant.
In synthetic latex solution, the latex that is added is as the aqueous solution, and with other mixture, just: vulcanizing agent, antioxidant, activator, intensifier and/or humidizer, softening agent and inserts join in the bucket of solution, dispersion liquid and emulsion form.The temperature of synthetic latex solution remains between 20-45 ℃.The weight of compounded latex solution is the 40-65% of the basic aqueous solution.
First coagulating agent that is coated in the drying on the mould is impregnated into a period of time in the synthetic latex solution, so that fully obtain the synthetic latex layer of one deck on the first coagulating agent film of mould.The thickness of the synthetic latex layer that is precipitated directly depends on the thickness of desirable final products.Mould is impregnated into preferably the time is 0.5 to 15 minute in the synthetic latex solution.
Identical with formed synthetic latex layer on mould, the mould that will have the synthetic latex layer carries out drying in outdoor or confined chamber.Open-air seasoning be mould is placed on outdoor, and the confined chamber drying comprises air-dry or the oven dry.The confined chamber drying has been avoided the deposition of impurity on synthetic latex layer on the mould.
The mould that then will have the drying of synthetic latex layer is impregnated in second coagulant solution, so that form the second coagulating agent rete on the synthetic latex layer on the mould, described second coagulant solution comprises calcium nitrate, calcium chloride and acetate.In addition, the composition in the solution also comprises humidizer, defoamer.Calcium nitrate, calcium chloride and acetate account for the 10-75% of total composition.The weight of the humidizer that is added in coagulant solution accounts for 0.01 to 10% of total amount.Humidizer is basic surfactant, can select from anion, nonionic, cationic surfactant.Alcohol also can be used as humidizer.Can form uniform coagulating agent layer on mould, wherein the humidizer in the coagulant solution can guarantee the uniformity of coagulating agent layer.The thickness that is deposited in the layer on the mould depends on the thickness of the desired film as a result of specification of the capsule of required formation and capsule.The temperature of second coagulant solution will remain between 20-95 ℃.
According to second coagulant solution, be coated in second coagulating agent on the mould outdoor or confined chamber is dry.
Then the mould with drying is impregnated in the Heveatex solution, and described Heveatex solution comprises the Heveatex mixture, vulcanizing agent, antioxidant, activator is wherein arranged, thicken and/or humidizer and selectable softening agent and/or inserts.The composition that mixes is dosed in the bucket of solution, dispersion liquid or emulsion.On second coagulating agent, form the Heveatex layer.The temperature of Heveatex solution remains between 20-45 ℃.The weight of the latex solution that mixes is the 40-65% of the basic aqueous solution.
Mould is impregnated into a period of time in the Heveatex solution, so that fully obtain the desired thickness of film.The thickness of the film that is precipitated directly depends on the thickness of required final products.The time that mould preferably is impregnated in the Heveatex solution is 0.5 to 15 minute.
Then, the mould that will have the Heveatex layer carries out drying under temperature.Have two-layer like this on mould: one deck is a synthetic latex, and another layer is a Heveatex.By the hot water injection mould of drying is carried out leaching.With the film immersion on the mould in the hot water 2-20 minute, go up too much mixing composition so that remove the surface.By the leaching process, unnecessary chemicals can be flushed in the hot water.
The mold surface that to wash is carried out drying in operating temperature is 40-110 ℃ baking box then.In drying box, the water of mold surface is evaporated fully.
Then mould in being 100-140 ℃ baking box, temperature is vulcanized.Hot-air is wherein arranged, and do not have inert substance.In this process, the lip-deep chemicals of the film on the mould is evaporated fully.
Then mould is at room temperature cooled off, be preferably at water outdoor or that use is flowed and cool off.
Then will on mould, strip down by formed film.Can craft or mechanical stripping, with the water flushing at room temperature of this film/softgel shell so that remove on formed film/softgel shell (in) any impurity.
In flat glass and hot air chamber, peel off sulfuration after the film of peeling off and washing carried out.In being 60-90 ℃ hot air chamber, temperature carried out after cure 8-12 hour.
In synthetic latex solution, before the dipping, in Heveatex solution, flood earlier.At formed film on the mould be: one deck synthetic latex is arranged on the Heveatex, otherwise or otherwise.
Formed like this film is a seamless utricule, inserts valve at the end of capsule and can transform described utricule as capsule.Therefore, just formed and had required air-tightness and flexible capsule.
Under special temperature, respectively the mixture of synthetic latex and Heveatex is poured in the bucket separately, in bucket, be placed with baffle plate or agitator, so that avoid the left-falling stroke skin and the precipitation of various composition in the mixture.
Comparative study shows between capsule of the present invention and the existing capsule: the various character of two seed capsules have tangible difference.
| Character | Capsule of the present invention | Conventional capsule |
| Gradient | ????0.0045cm/sec | ????0.0105cm/sec |
| The capillary diameter | ????0.1cm | ????0.1cm |
| The capillary cross section | ????π(0.1cm/2) 2＝7.854× ????10 -3cm 2 | ????π7.854×10 -3cm 2 |
In temperature is that 22 ℃, pressure are under the 22ps/g, is that the conventional capsule of 0.1000cm has carried out handling check to thickness, uses identical parameter that capsule of the present invention is handled check, judge that the regression result of conventional capsule and capsule of the present invention is as follows:
The regression result of two seed capsules is described with Fig. 1 and Fig. 2 respectively.
| Conventional capsule | Capsule of the present invention | |||
| Elapsed time | Observe mm | Return mm | Observe mm | Return mm |
| ????0 | ????0.0 | ????44.8 | ????4.0 | ????-33.6 |
| ????10 | ????22.0 | ????18.2 | ????16.0 | ????-6.6 |
| ????20 | ????81.0 | ????81.2 | ????30.0 | ????20.5 |
| ????30 | ????143.0 | ????144.2 | ????46.0 | ????47.5 |
| ????40 | ????209.0 | ????207.2 | ????75.0 | ????74.5 |
| ????50 | ????271.0 | ????270.2 | ????101.0 | ????101.6 |
| ????60 | ????332.0 | ????333.2 | ????130.0 | ????128.6 |
Handled experimental data shows that the air permeability of capsule of the present invention and conventional capsule is 3.62E-08: 8.44E-08.
By following Example, can clearer understanding be arranged to the present invention.Example 1
The mould that is made of metal is cleaned, so that remove all dusts and all impurity.The surface of aluminum dipping form preferably is impregnated in the Acid-Base cleans, then water washes.Then the mould that will wash and clean is impregnated in first coagulant solution.First coagulant solution is made up of the calcium nitrate of 55% calcium nitrate and 0.05% (accounting for humidizer composition total amount), 0.07% talcum powder and water.The temperature of described first coagulant solution will remain on about 50 ℃.After mould is removed, described mould is at room temperature carried out drying from coagulant solution.And with described mould be immersed in by 45% water NBR latex, 1.5% sulphur and dithiocar-bamate, weight be 2% antioxidant BKF, weight 4% zinc oxide, 1.5% thicken and/or NBR latex solution that the porcelain of humidizer, 1% atoleine and 1% is formed in.The temperature of synthetic latex solution remains on 30 ℃.Mould is impregnated in the synthetic latex solution 1 minute.Identical with formed synthetic latex layer on mould, mould is at room temperature carried out drying.Then the mould of drying is impregnated into temperature and is in 50 ℃ second coagulant solution, described second coagulant solution comprises 60% calcium chloride, 5% anion surfactant, defoamer and ethanol.Then mould is carried out drying and it is impregnated in the Heveatex solution.Heveatex solution comprises Heveatex, also has the agent alive of sulphur and zinc oxide, antioxidant, humidizer, softening agent and inserts.The temperature of Heveatex solution is 55 ℃.The time that preferably mould is impregnated in the Heveatex solution is 2 minutes.Then mould is at room temperature carried out drying.Mould to drying in hot water carries out leaching.With the film immersion on the mould in hot water 10 minutes, go up unnecessary chemicals so that remove the surface.The mould that leaching is intact carries out drying in temperature is 55 ℃ baking box.Then, mould is placed on temperature is about in 110 ℃ the baking box, hot-air is wherein arranged, and do not have inert substance.Then mould is cooled to room temperature out of doors.Then will be on mould formed film is manual strip down, water is added in the film under peeling off, so that remove any impurity on the formed film.In flat glass and hot air chamber, after advancing, the film that washed peels off sulfuration with peeling off.In being 70 ℃ hot air chamber, temperature carried out after cure about 8 hours.Example 2
Comprise one deck synthetic latex and Heveatex as the softgel shell of inflatable ball, stack and be cross-linked into one mutually, so that form a kind of low air permeability and elastomeric thickness is the softgel shell of 0.8mm by sulfuric horizon.
Metal mould is cleaned, so that remove all dusts and all impurity.The surface of aluminum dipping form preferably is impregnated in the Acid-Base cleans, then water washes.Then, the mould that washes and cleaned is impregnated in first coagulant solution.First coagulant solution is made up of the calcium chloride of 54.5% calcium nitrate and 0.05% (accounting for humidizer composition total amount), 0.06% talcum powder and water.The temperature of first coagulant solution will remain on about 49.5 ℃.To be coated in that coagulating agent at room temperature carries out drying on the mould.And with described mould be immersed in temperature be 30 ℃ by 44.5% water NBR latex, 1.4% sulphur and dithiocar-bamate, weight be 1.8% antioxidant BKF, weight 4% zinc oxide, 1.6% thicken and/or NBR latex solution that the porcelain of humidizer, 1% atoleine and 1% is formed in 1 minute.Mould is at room temperature carried out drying.Then the mould of drying is impregnated in 50 ℃ second coagulant solution, described second coagulant solution comprises 60% calcium chloride solution, 5% anion surfactant, defoamer and alcohol.Then mould is carried out drying and it is impregnated in the Heveatex solution.Heveatex solution comprises Heveatex, also has sulphur and zinc oxide activating agent, antioxidant, humidizer, softening agent and inserts.The temperature of Heveatex solution is 55 ℃.The time that preferably mould is impregnated in the Heveatex solution is 3 minutes.Then mould is at room temperature carried out drying.The mould of drying is filtered by hot water injection's leaching.With the film immersion on the mould in hot water 12 minutes, go up unnecessary chemicals so that remove the surface.Mould after the leaching in being 55 ℃ drying box, temperature is carried out drying.Then mould is placed on temperature and is about in 110 ℃ the baking box, hot-air is wherein arranged, and do not have inert substance.Then mould is cooled to room temperature out of doors.Then will be on mould formed film is manual strip down, at room temperature, water is added in the film under peeling off, so that remove any impurity on the formed film.In flat glass and hot air chamber, after carrying out, the film that washed peels off sulfuration with peeling off.In being 70 ℃ hot air chamber, temperature carried out after cure about 8 hours.Example 3
Has low air permeability and elastomeric softgel shell as inflatable ball comprises that a layer thickness is synthetic latex and the Heveatex layer of 1.2mm.
Be impregnated into by the mould that aluminium is made and wash in the Acid-Base and to clean, then water washes.The mould that will wash and clean is impregnated in first coagulant solution then.Described first coagulant solution is made up of the calcium chloride of 57% calcium nitrate and 0.04% (accounting for humidizer composition total amount), 0.05% talcum powder and water.The temperature of first coagulant solution will remain on about 49 ℃.After mould removed, mould is at room temperature carried out drying from coagulation solution.According to required thickness, when temperature is 28 ℃, it is in 72: 28 synthetic latex and the Heveatex mixed solution 1.5-3 minute that the mould of drying is immersed in ratio, mixing composition is the 38-67% of water base solution weight, can obtain one deck mixing Heveatex and synthetic latex on described mould.Have described mixing Heveatex of one deck and synthetic latex and at room temperature carry out drying, and leaching 9 minutes in hot water, redundant impurities gone up so that remove the surface.Subsequently mould in being 65 ℃ baking box, temperature is carried out drying.
Mould to described leaching vulcanizes in baking box, when temperature is 115 ℃ in hot-air, can produce the described mould that has composite natral latex and synthetic latex mixed layer.Described mould is as a result cooled off and strips down, can obtain can be used as the softgel shell of inflatable ball.The softgel shell water that is stripped down is washed, so that remove impurity.
It is restriction to wide region of the present invention that the present invention as described herein should not be construed as.
Claims (15)
1. softgel shell as inflatable ball, comprise one deck compounded synthetic latex and composite natral latex layer at least, described compounded synthetic latex and composite natral latex layer are stacked together, and have low air permeability and elastomeric softgel shell by vulcanizing to be cross-linked to form mutually, it is characterized in that: the ratio of described compounded synthetic latex and described composite natral latex is 80: 20 to 20: 80, and final lamellose gross thickness is 0.25mm to 3.0mm.
2. softgel shell as inflatable ball, comprise at least one deck have thickness be the compounded synthetic latex of 0.1mm to 2.0mm and at least one deck have the composite natral latex layer that thickness is 0.1mm to 2.0mm, it is characterized in that: described two-layer gross thickness is 0.25mm to 3.0mm.
3. softgel shell according to claim 1 and 2 is characterized in that: described Heveatex is selected from epoxy natural latex, livering (concentrating) latex, centrifugal concentrate or two centrifugal concentrates etc.
4. softgel shell according to claim 1 and 2 is characterized in that: described synthetic latex is to select from the group that comprises ameripol latex, acrylonitrile-butadiene latex, neoprene latex, butyl latex and EPDM latex.
5. a kind of softgel shell according to claim 1 as inflatable ball, comprise the mixed layer that at least one laminated one-tenth latex and Heveatex mix mutually, the ratio of described compounded synthetic latex and described composite natral latex is 80: 20 to 20: 80, with antioxidant, catalyst, coagulant, thicken with humidizer, stabilizing agent or the like and mix mutually, have low air permeability and elastomeric softgel shell so that form, the gross thickness of THIN COMPOSITE lamella is 0.25mm to 3.0mm.
6. according to each described softgel shell as inflatable ball of above claim, it is characterized in that: described Heveatex and synthetic latex mix with following material,
Antioxidant from 0.01 to 3PHR
Coagulant from 1 to 3PHR
Activator from 0.01 to 5PHR
From 0.5 to 1PHR thicken and humidizer
Stabilizing agent from 0.1 to 2PHR and selectable
Softening agent from 1 to 2PHR and
Inserts from 5 to 20PHR
7. the softgel shell as inflatable ball according to claim 6 is characterized in that: described coagulant can be selected from dithiocar-bamate, crow card Seat LDA, crow card Seat LDB, Setsit9, Setsit5, butyl namate, guanidine, crow card Seat DOTG, crow card Seat D, sulfhydryl class or thuriam acceserator and their mixture.
8. the softgel shell as inflatable ball according to claim 6, it is characterized in that: described antioxidant can be selected from the antioxidant of nondiscoloration type, described nondiscoloration type antioxidant can be selected from antioxidant BKF, antioxidant MB, antioxidant ZMB, antioxidant NONOX WSP, antioxidant NONOX BROD, antioxidant 2246, Wingstay L or White and similar substance, and the antioxidant of described slight decolouring type can and similarly be selected the material from antioxidant HS or antioxidant nonex BROD.
9. the softgel shell as inflatable ball according to claim 6, it is characterized in that: described softening agent can be selected from the group that comprises anion paraffin, solid paraffin, and activator can be selected from stearic acid, zinc oxide and active zinc and composition thereof.
10. softgel shell according to claim 6 is characterized in that: described inserts can be selected from china clay, mica powder, white powder, lithopone, Blancfixe, carbon Blancfixe Titanium Oxide (titanium oxide) and their mixtures.
11. an improvement technology that is used for making the softgel shell of inflatable ball comprises the following steps:
A) clean mould;
B) mould of described cleaning being impregnated into temperature is 20-95 ℃ first coagulant solution
In, can obtain being coated in the first coagulating agent coating on the mould;
C) the described first coagulating agent coating that is coated on the mould is carried out drying;
D), the coagulating agent on the mould of being coated in of drying is impregnated into and has heavily according to needed thickness
Amount is in the compounded synthetic latex of the 40-65% of solution 1 to 4 minute, is 20-45 in temperature
℃ the time, on the described first coagulating agent coating that is coated on the mould, it is multiple to obtain one deck
Close the synthetic latex resultant layer;
E) described mould with compounded synthetic latex layer is carried out drying;
F) described mould with drying of compounded latex layer is impregnated into temperature be 20-95 ℃
In two coagulant solution, can obtain being coated in second on the compounded synthetic latex layer on the mould
The coagulating agent coating;
G) described second coagulating agent that is coated on the mould is carried out drying;
H), described second coagulating agent that is coated in the drying on the mould is soaked according to needed thickness
Steep and have in the composite natral latex of 40-65% that weight is solution 1 to 4 minute,
When temperature is 20-45 ℃, on described second coagulating agent that is coated on the mould, can form
The composite natral latex layer;
I) described mould with compounded synthetic latex layer and composite natral latex layer is done
Dry;
J) has the mould of compounded synthetic latex layer and composite natral latex layer in hot water with described
Leaching 8 to 10 minutes is so that from the too much composite of surperficial elimination, with described mould
Son carries out drying in temperature is 55-115 ℃ baking box;
K) be between 100-140 ℃ in temperature, to the described tool of crossing described leaching, dry
There is the mould as a result of compounded synthetic latex layer and composite natral latex layer to vulcanize;
L) described final mould is cooled off;
M) the final mould from described cooling peels composite natral latex and synthetic latex layer, just
Obtained a shell;
N) water washes the described next shell that peels, so that remove any impurity, with what washed
Shell carries out drying in hot air chamber, to the shell of described flushing 60-90 ℃ carry out after
Solidified 8-12 hour, and just obtained softgel shell as a result as inflatable ball;
Wherein, the described coagulating agent that will be coated on the mould is impregnated into as in the defined synthetic latex solution of step (d) or as being reversible in the defined Heveatex solution of step (h).
12. an improvement technology that is used for making the softgel shell of inflatable ball comprises the following steps:
A) clean mould;
B) mould of described cleaning being impregnated into temperature is in 20-95 ℃ the coagulant solution, can obtain being coated in the coagulating agent coating on the mould;
C) the described coagulating agent coating that is coated on the mould is carried out drying;
D) the described dry coagulating agent that is coated on the mould is impregnated into has in synthetic latex and the Heveatex mixed solution, according to needed thickness, its blending ratio is 80: 20 to 20: 80, when temperature is 20-45 ℃, in having the compound composition of 40-65% that weight is solution, mixed 1-4 minute, on described mould, can obtain Heveatex and synthetic latex layer that one deck mixes;
E) described mould with mixed layer of described synthetic latex and Heveatex is carried out drying;
I),, described mould in being 55-115 ℃ baking box, temperature is carried out drying so that from the too much composite material of surperficial elimination with the leaching 8 to 10 minutes in hot water of the mould of described mixed layer with synthetic latex and Heveatex;
J) be in the 100-140 ℃ of hot-air in temperature, to described in baking box the mould of the mixed layer with composite natral latex and synthetic latex of leaching vulcanize;
K) described final mould is cooled off;
L) peel off the mixed layer of Heveatex and synthetic latex from described final mould, just obtained a shell;
M) water washes the described next shell that peels, so that remove any impurity, the shell that washed is carried out drying in hot air chamber, and the shell of described flushing is carried out back curing 8-12 hour at 60-90 ℃, just obtained can be used as the final softgel shell of inflatable ball;
13. according to claim 11 or 12 described improvement technologies, it is characterized in that: described coagulant solution comprises calcium nitrate and/or calcium chloride and/or acetate, humidizer, releasing agent or carrier, meanwhile, described second coagulant solution comprises calcium nitrate and/or calcium chloride and/or acetate, humidizer, releasing agent, and wherein said coagulant solution comprises that calcium nitrate and/or calcium chloride account for the 10-75% of total composition.
14. according to claim 11 or 12 described improvement technologies, it is characterized in that: the described humidizer weight that is added in coagulant solution accounts for 0.01 to 10% of total amount, wherein humidizer is a surfactant, can select from anion, nonionic, cationic surfactant.
15. according to claim 11 or 12 described improvement technologies, it is characterized in that: described remover is an inert powder, can and similarly select the inert material from talcum powder, calcium carbonate, magnesia, bentonite, the remover that is added is the 0.01-20% of total amount.
Applications Claiming Priority (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IN1341DE1999 | 1999-10-08 | ||
| IN1341/DEL/99 | 1999-10-08 | ||
| IN1342/DEL/99 | 1999-10-08 | ||
| IN1343/DEL/99 | 1999-10-08 | ||
| IN1342DE1999 | 1999-10-08 | ||
| IN1343DE1999 | 1999-10-08 | ||
| IN1511/DEL/99 | 1999-11-29 | ||
| IN1511DE1999 | 1999-11-29 |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100702293A Division CN1321710C (en) | 1999-10-08 | 1999-12-09 | Laminated layer, bladder shell and ball made from the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1391494A true CN1391494A (en) | 2003-01-15 |
| CN1223389C CN1223389C (en) | 2005-10-19 |
Family
ID=27452612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB998170348A Expired - Fee Related CN1223389C (en) | 1999-10-08 | 1999-12-09 | Bladder shell for inflatable balls |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN1223389C (en) |
| BR (1) | BR9917515B1 (en) |
| WO (1) | WO2001026750A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885864A (en) * | 2010-05-19 | 2010-11-17 | 张国强 | Novel environmentally-friendly balloon and production method thereof |
| CN102086637A (en) * | 2010-12-16 | 2011-06-08 | 铁岭尔凡橡塑研发有限公司 | Large high-pressure seamless rubber airbag and production process thereof |
| CN102229246A (en) * | 2011-06-28 | 2011-11-02 | 欧君强 | Full-automatic rubber bubble pressing machine and method for preparing air cushion by using same |
| CN104024318A (en) * | 2011-10-11 | 2014-09-03 | 朗盛德国有限责任公司 | Vulcanisable compositions based on epoxy group-containing nitrile rubbers |
| CN106926535A (en) * | 2017-03-30 | 2017-07-07 | 中国热带农业科学院农产品加工研究所 | Sounding balloon and its manufacture method |
| CN108245222A (en) * | 2018-01-23 | 2018-07-06 | 青岛星创医疗科技有限公司 | The medical preparation method for taking stone sacculus |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2471852A1 (en) | 2010-12-29 | 2012-07-04 | Lanxess Deutschland GmbH | Vulcanisable compounds based on nitrile rubbers containing epoxy groups |
| EP2471851A1 (en) | 2010-12-29 | 2012-07-04 | LANXESS Deutschland GmbH | Vulcanisable compounds based on nitrile rubbers containing epoxy groups |
| EP2581409A1 (en) | 2011-10-11 | 2013-04-17 | Lanxess Deutschland GmbH | Vulcanisable compounds on the basis of nitrile rubbers containing epoxy groups |
| CN106947127B (en) * | 2017-03-30 | 2019-09-03 | 中国热带农业科学院农产品加工研究所 | Heveatex of sounding balloon and preparation method thereof |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE477162A (en) * | 1947-11-06 | |||
| DE921357C (en) * | 1952-02-29 | 1954-12-16 | Us Rubber Co | Process for producing a bubble-free, multiple dipped or applied layer of butyl rubber |
| LU37877A1 (en) | 1958-12-29 | |||
| US4022848A (en) | 1974-08-05 | 1977-05-10 | The Goodyear Tire & Rubber Company | Bladder composition containing low unsaturation butyl rubber |
| JP2504631B2 (en) * | 1991-04-30 | 1996-06-05 | 住友ゴム工業株式会社 | Glove manufacturing method |
| EP0574160B1 (en) * | 1992-06-10 | 1997-02-19 | Maxxim Medical, Inc. | Flexible rubber article and method of making |
| WO1996023643A1 (en) * | 1995-02-02 | 1996-08-08 | Baxter International Inc. | A process for making a glove having a polyurethane coating |
| DE19738906A1 (en) * | 1997-09-05 | 1999-03-11 | Saga Sports Pvt Ltd | Sectored elastic bladder for ball |
| JPH1180438A (en) * | 1997-09-15 | 1999-03-26 | Toyo Tire & Rubber Co Ltd | Rubber composition and vulcanized rubber |
-
1999
- 1999-12-09 WO PCT/IN1999/000071 patent/WO2001026750A1/en active Application Filing
- 1999-12-09 CN CNB998170348A patent/CN1223389C/en not_active Expired - Fee Related
- 1999-12-09 BR BRPI9917515-0A patent/BR9917515B1/en not_active IP Right Cessation
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101885864A (en) * | 2010-05-19 | 2010-11-17 | 张国强 | Novel environmentally-friendly balloon and production method thereof |
| CN101885864B (en) * | 2010-05-19 | 2012-06-27 | 张国强 | Novel environmentally-friendly balloon and production method thereof |
| CN102086637A (en) * | 2010-12-16 | 2011-06-08 | 铁岭尔凡橡塑研发有限公司 | Large high-pressure seamless rubber airbag and production process thereof |
| CN102086637B (en) * | 2010-12-16 | 2012-11-28 | 铁岭尔凡橡塑研发有限公司 | Large high-pressure seamless rubber airbag and production process thereof |
| CN102229246A (en) * | 2011-06-28 | 2011-11-02 | 欧君强 | Full-automatic rubber bubble pressing machine and method for preparing air cushion by using same |
| CN102229246B (en) * | 2011-06-28 | 2013-07-17 | 欧君强 | Full-automatic rubber bubble pressing machine and method for preparing air cushion by using same |
| CN104024318A (en) * | 2011-10-11 | 2014-09-03 | 朗盛德国有限责任公司 | Vulcanisable compositions based on epoxy group-containing nitrile rubbers |
| CN104024318B (en) * | 2011-10-11 | 2016-10-26 | 朗盛德国有限责任公司 | Curable compositions based on the nitrile rubber containing epoxide group |
| CN106926535A (en) * | 2017-03-30 | 2017-07-07 | 中国热带农业科学院农产品加工研究所 | Sounding balloon and its manufacture method |
| CN106926535B (en) * | 2017-03-30 | 2019-05-24 | 中国热带农业科学院农产品加工研究所 | Sounding balloon and its manufacturing method |
| CN108245222A (en) * | 2018-01-23 | 2018-07-06 | 青岛星创医疗科技有限公司 | The medical preparation method for taking stone sacculus |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001026750A1 (en) | 2001-04-19 |
| CN1223389C (en) | 2005-10-19 |
| BR9917515A (en) | 2005-02-15 |
| BR9917515B1 (en) | 2009-01-13 |
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Owner name: YINGKAI (INDIA ) RUBBER PRIVATE CO., LTD. Free format text: FORMER OWNER: JAIN ANIL; JAIN JINESH; JAIN NARESH; JAIN SATISH; JAIN VIPIN Effective date: 20070126 |
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